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2 NSC January 2007 CONTENTS

JANUARY 2007 VOL15 NO1 NEW STEEL CONSTRUCTION

www.new-steel-construction.com Cover Image 007 STAGE, PINEWOOD STUDIOS Client: Pinewood Studios Architect: Foster Willis Structural Engineer: Adams Kara Taylor & Bourne Engineering Steelwork Contractor: Bourne Steel

EDITOR 5 Editor’s comment Last year was an exceptional year for the UK’s Nick Barrett Tel: 01323 422483 [email protected] constructional steelwork sector and there is more to come in 2007, DEPUTY EDITOR argues Nick Barrett. Martin Cooper Tel: 01892 538191 [email protected] 6 News The fifth edition of the National Structural Steelwork CONTRIBUTING EDITOR Specification for Building (NSSS) has now been published. Ty Byrd Tel: 01892 524455 [email protected] PRODUCTION EDITOR Andrew Pilcher Tel: 01892 524481 FEATURES [email protected] PRODUCTION ASSISTANT 12 Steel frames are still by far the fastest and most cost effective Alastair Lloyd Tel: 01892 524536 framing method for commercial developments and residential [email protected] NEWS REPORTERS blocks, the latest Cost Comparison Survey reveals. Mike Walter, Victoria Millins 13 Structural engineers and designers are already taking advantage ADVERTISING SALES MANAGER Sally Devine Tel: 01474 833871 of the many benefits available from using the new Corus Advance [email protected] brand. 14 The city of Kingston-upon-Hull is currently undergoing a major PUBLISHED BY facelift with the most prominent project being the vast St Stephen’s The British Constructional Steelwork Association Ltd 4 Whitehall Court, Westminster, SW1A 2ES mixed-use development. Telephone 020 7839 8566 Fax 020 7976 1634 The UK’s largest single site distribution centre, taking shape near Website www.steelconstruction.org 16 Email [email protected] Rotherham, pushed the boundaries of available software design packages. The Steel Construction Institute Silwood Park, Ascot, Berkshire SL5 7QN 18 Only steel bearing piles could give the new Automated Distribution Telephone 01344 636525 Fax 01344 636570 Centre Website www.steel-sci.org at the Corus Scunthorpe plant the needed structural rigidity. Email [email protected] 20 The former Haughton Main open cast coal mine near Barnsley is Corus Construction and Industrial being converted into a new business park. PO Box 1, Brigg Road, Scunthorpe, North Lincolnshire DN16 1BP 22 A replacement building that will cover the large water tanks used for Telephone 01724 404040 Fax 01724 404224 Website www.corusconstruction.com the James Bond movies at Pinewood Studios featured some speedy Email [email protected] planning and steel erection. Martin Cooper goes backstage. CONTRACT PUBLISHER & 24 Ten new steel bridges, including the UK’s first steel tied arch ADVERTISING SALES Barrett, Byrd Associates structure for a railway, have been erected for the East London Linden House, Linden Close, Railway northern extension. Martin Cooper walks the line from Tunbridge Wells, Kent TN4 8HH Shoreditch to Dalston. Tel: 01892 524455 www.barrett-byrd.com 26 A school on a sloping site in Bristol presented contractors with a number of unique challenges. EDITORIAL ADVISORY BOARD 30 This month’s technical article tackles the subject of fire protection of Dr D Tordoff (Chairman); Mr N Barrett; Mrs Sally Devine; Mr D G Brown, SCI; Mr M Crosby, Symonds; beams with web openings. Mr R Gordon, Mace Ltd; Mr W Gover, Consultant; 40 Years Ago Our look back through the pages of Building with Steel Mr R Harrison, Glentworth Fabrications Ltd; 36 Mr A Hughes, Tubelines; Mr A Palmer, ; features the innovative structures built for the Montreal expo. Mr R Steeper, Corus; Mr O Tyler, Wilkinson Eyre, The role of the Editorial Advisory Board is to advise on the overall style 38 Advisory Desk The latest advice from the SCI - AD 306 - and content of the magazine. concentrates on additional moments in braced bays.

New Steel Construction welcomes contributions on any suitable topics relating to 39 Publications steel construction. Publication is at the discretion of the Editor. Views expressed in this publication are not necessarily those of the BCSA, SCI, Corus or the Contract 39 Codes and Standards Publisher. Although care has been taken to ensure that all information contained 40 BCSA members herein is accurate with relation to either matters of fact or accepted practice at the time of publication, the BCSA, SCI, Corus and the Editor assume no responsibility for 42 SCI members any errors or misinterpretations of such information or any loss or damage arising from or related to its use. No part of this publication may be reproduced in any form without the permission of the publishers.

CHANGES TO THE MAILING LIST If you wish to notify us of a change: Non Members of either the SCI or the BCSA please telephone Corus on 01724 404863 Members BCSA Telephone BCSA on 020 7839 8566 Members SCI Telephone SCI on 01344 636525

SUBSCRIPTIONS To take out a subscription please telephone 01344 636525 The British Annual subscription £92.00 UK, £117.00 elsewhere. Constructional Steelwork All rights reserved ©2006. ISSN 0968-0098 Association Ltd

NSC January 2007 3 EN0653A2 NewSteelConA4July 27/6/06 9:38 am Page 1

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Ground well paved for further advance

The turn of the year is a good time to take stock of progress made and lessons learned for the future. The year just passed was a good one for the constructional use of steel, by any measure. Record output by BCSA’s members was reported. The UK’s steelwork sector remains the object of international envy, clients report delight with the cost effective, timely delivery of flexible and sustainable projects, and competitors remain on the back foot. The technical support, research and marketing back up that delivers this level of quality continues to break new ground

Highlights of the year? There are so many to choose from. Sustainability is clearly going to be increasingly important as a business driver, making it all the better that the BCSA’s Sustainability Charter was successfully launched. The first steelwork contractors have already been audited and are now able to prove their sustainability credentials. BCSA also chalked up a milestone Nick Barrett - Editor in celebrating its 100th year of successfully representing the interests of steelwork contractors, membership increasingly being regarded as essential to compete in demanding markets.

The SCI reached its 20th birthday and was able to report growing membership and a long list of new publications aimed at making steel easier to use. For example, in January NSC reported on a new design guide from SCI allowing further economies to be made in the fire safe design of buildings. There was also a revised design guide on the vibration of floors that proves how easily floors on steel framed buildings meet, and exceed, the required performance standards.

From Corus there was a major development in the launch of the new name for its range of structural sections; the range was also significantly expanded in a move that one construction weekly magazine saw as ‘the biggest shake-up in structural steel manufacturing for half a century’. Independently produced Market Share and Cost Comparison surveys commissioned by Corus showed that steel still enjoys substantial cost and programme advantages over other framing solutions, and this was reflected in increasing shares of key markets.

Steelwork contractors made substantial investments to ensure that their fabrication and other production related facilities remain leading edge, delivering significant advantages to clients. The industry’s safety performance remained better than the industry average and new safety initiatives are underway. The Structural Steel Design Awards showcased the best of the innovative steel designs turned into successful projects, dazzling the judges with their quality and earning high praise from key clients.

As we reached the year-end work was progressing rapidly on the extension to Corus’s Medium Section Mill and new Automated Distribution Centre at Scunthorpe. Together these major investments deliver sections of higher quality than ever before, on a just-in-time basis if required.

So all in all, not a bad year of achievement. From rival framing material interests we heard nothing of any significant new developments at all, and no sign of the concrete industry investing in anything useful like fire testing of its own materials. The tactic there remains to spend money on misleading advertisements that disgrace the publications they appear in and, we can be sure, fail to influence any engineer capable of analysing the technical evidence.

The prospects for 2007 look equally promising. Nobody can accurately predict what will happen to the size of markets, but it seems reasonable to expect that steel will at least hold its own in key markets and make progress in the sectors that are being targeted for growth. There is a busy programme of research underway that will continue to issue in improved guidance and technical support for designers, all of which we will report on in NSC. Using steel is easy already, as the market tells us, and work is in hand to make it easier still. No misleading advertising will change that fact.

NSC January 2007 5 NEWS

Heat straightening can reduce traffic congestion

The Highways Agency (HA) in collaboration with “Heat straightening is a potential repair method tion during the cooling phase. the BCSA is now providing guidance for a recently for most steel girders which have been damaged However, due care and diligence is advised in adopted technique for bridge repairs which will by vehicle impact and it has already been success- the execution of the method, as pitfalls such as help speed up such work and ultimately reduce fully used, most notably on the M20 Chatham Road overheating the steel and changing its properties traffic disruption. bridge in Kent,” said HA Head of Structures, Safety, can occur. The HA and BCSA both advise an ex- The method, first trialled in 2000, is the use of Standards & Research, Dr Sibdas Chakrabarti. perienced heat straightening contractor should be heat straightening to repair impact damaged com- On this project the damaged beams were re- engaged to conduct the work. posite bridge beams. turned to their original shape and some additional The technique has been used for many years in “It has proven to be an economic and expedi- stiffeners were required. Dr Chakrabarti said traffic the USA and is documented in a US Federal High- tious approach to repairing impact damage to disruption was limited, as only a partial carriage- ways Administration (FHWA) manual, which can steel bridges, and it minimises disruption for road way closure was needed at night. be obtained from the United States Department users,” commented HA Senior Structures Advisor, The process involves applying controlled and of Transport On-Line Publications Department at Safety, Standards & Research, Dr Emeka Agbasi. patterned heating and cooling in repetitive cycles www.isddc.dot.gov “The HA is at the forefront of continuously seek- to plastically deformed regions of damaged steels, For further information email: ing and exploiting innovative techniques to achieve to produce a gradual straightening. It relies on in- emeka.agbasi@ highways.gsi.gov.uk our business goals of managing traffic, tackling ternal and external restraints that produce thicken- or sibdas.chakrabarti@ highways.gsi.gov.uk congestion and improving safety,” he added. ing during the heating phase and in-plane contrac- or [email protected]

New City landmark nears completion

The highly original looking One contractor Bovis Lend Lease, erected Coleman Street building in the City approximately 1,200t of steelwork of London is nearing completion and over an eleven week period. will be handed over to the client this Richard Tarren, Contracts Spring. Manager for Severfield-Reeve said The steel framed eight-storey the unusual cladding meant the building will offer 17,000m2 of office perimeter beams had the atypical space and will become the new slab edge profile shop fitted onto the worldwide headquarters of Legal & beams to ensure that the slab edge General. was accurately formed. Situated on an island site at “This was quite challenging, the junction of London Wall and especially during the fabrication Moorgate, the building is ovoid process,” said Mr Tarren. “But Severfield-Reeve also erected a “The large transfer beam allowed in shape and clad in distinctive ultimately, it meant the cladding number of architectural sloping CHS one column to be taken out and segmental panels. went up quicker and we had a lot columns on the building’s east eleva- ultimately opened up the loading bay Steelwork contractor Severfield- less cutting and positioning of metal tion entrance area and a large trans- area of the building,” explained Mr Reeve, working on behalf of main decking and edge trim at site.” fer beam above the first floor level. Tarren.

The £48M Leicester Performing Arts Centre is set to become Steel performs in Leicester one of the focal points in the regeneration of the city’s central district. More than 2,500t of structural steelwork will be erected on site by William Hare, including a large 1,900t truss that supports the Centre’s entire roof. This large steel section is supported by four concrete cores and allows the building to have no internal columns. It was fabricated off site and brought and delivered in a number of separate pieces. Scheduled for completion by late 2007, the Centre features two auditoria with seating for 350 and 750 people respectively. The majority of the structure will be glass clad which will allow people to look in from the outside to see sets being built, and rehearsal rooms and facilities.

Main contractor is Bovis Lend Lease and the project was Picture: Richard Rogers Partnership designed by architect Rafael Vinoly.

6 NSC January 2007 NEWS

Town centre jobs The Atrium, Camberley set to increase

The number of high profile town cen- a significant steel element, and tre shopping complex and regenera- initial plans indicate the forthcoming tion projects is set to increase over projects will use structural steel. the next twelve months. “Steel lends itself to off-site con- Major on going projects already struction and so it’s widely used on include the Grand Arcade in Wigan, town centre developments,” said the Westfield shopping centres in Scott Crawford, Structural Engineer Derby and White City, London, and for MPN. “On Westfield, Derby we the Atrium in Camberley, . chose to use steel instead of con- Meanwhile, other schemes set to crete during the planning stage, as begin in the next year include, the it would not only provide us with the redevelopment of Bracknell town desired open plan areas, but it also centre, the St David’s retail project meant less disruption to the sur- in , Farnborough town centre rounding area.” eration and Surrey Heath Borough an important part of the town and we and an extension to the Overgate The Atrium project in Camberley Council. Bruce McArthur, Project required flexibility and longevity, as mall in Dundee. is being developed by a joint venture Executive for Re- well as speed of construction. Steel All of the on going jobs include between Crest Nicholson Regen- generation said: “The Atrium will be met all of these requirements.” SCI Dinner Last November’s SCI annual dinner was well attended by the industry as usual. Pictured is the event’s head table. Left to right: Graham Owens, SCI Director; Derek Randall, Corus Commercial Director, Long Products; Professor David Nethercot; Peter Head, Arup, Head of Urban Design and Development; guest speaker, Barry Cryer; Martin Manning, Arup Director; Paul Lormor, Corus Executive Director, Long Products; Professor Patrick Dowling; Dr John Roberts, Jacobs Babtie Operating Board Director.

Access the tool for Eurocode adoption

During November more than 3,000 practitioners turning,” said Christine Roszykiewicz, SCI Project from 149 different countries logged on to the SCI’s Manager. Access Steel website in order to obtain critical “The Access Steel website has demonstrated information that will help them make the transition that it is not disinterest or reluctance to face to the Eurocodes. Many found their way to the up to change that has deterred designers from website via search engines such as Google or embracing the Eurocodes for steel. Rather it is Yahoo. the need for practical familiarisation tools that will By tracking live web traffic and analysing not put too big a burden on overhead costs,” she typical search words, the SCI has been able to added. better understand browsers’ needs and their they enable designers to see what steps need to www.access-steel.com is a completely free preferred web content and therefore adapt the IT be taken when designing to Eurocodes 3 and 4. site aimed at helping designers to adopt the tools accordingly. “Despite a general perception that the UK Eurocodes. Produced by the six leading steel Web traffic reports show that examples of construction industry had previously shown very technical institutes of Europe, the information is construction work are the most viewed pages as little concern for the Eurocodes, the tide is now accurate, authoritative and quality assured.

NSC January 2007 7 NEWS AROUND THE PRESS The Structural Engineer New Eurocode for steel bridges 7 November 2006 New Liverpool waterfront The BSI has issued a new Eurocode be used in the UK without a National ways Agency has been working on “Steel was utilised to create for the design of steel bridges. The Annex. the NA for sometime and this may the seamless architectural code known as BS EN 1993-2: 2006 “Following publication of this bring forward the publication date,” curves,” Mr Rogan said. “There ‘Design of Steel Structures - Part 2 Eurocode there has to be a period he added. is some complicated geometry Steel Bridges’ partly supersedes BS of two years allowed for national Dr Moore also advised members involved and only steel would 5400-3, which according to BSI will calibration and the development of a although there is no need to rush have worked.” be withdrawn in March 2010 at the National Annex (NA),” explained Dr out to buy this standard yet, it would latest. Moore. be prudent to develop an in-house The Structural Engineer Dr David Moore, BCSA Director Consequently, the NA for this new strategy that anticipates the intro- 7 November 2006 of Engineering said members should Eurocode is not due until November duction of this latest Eurocode for Saving time be aware that this standard can not 2008. “But, I am aware that the High- bridges. Construction time and costs have been significantly re- duced at Warrington’s Golden Square Development through Morrison relies on quick steel erection the use of helical curved steel Elland Steel Structures has erected space, with an additional 18,000ft2 pleted the steel erection in a speedy beams in the construction of more than 800t of hot and cold rolled of offices, and an overall maximum eight weeks. the spiral car park ramps. steelwork for a new Wm Morrison height of 13m. “We have been associated with Supermarkets freezer warehouse Bob Thorpe, Managing Direc- Morrisons for more than 20 years Contract Journal and distribution centre in Corby. tor of Elland Steel said: “We had an providing steelwork for new stores, 22 November 2006 The structure consists of ap- eleven week lead-in period before distribution warehouses and retail Steel contract nears end proximately 137,000ft2 of ground floor commencing on site and then com- outlets throughout the UK.” Norwest Holst is nearing com- pletion of a £1.5M contract to dismantle a heavy section steel mill for Corus at Scunthorpe. With work starting in February, 12,000t of components weigh- ing up to 90t each will have been dismantled by the time the contract ends next month.

Construction News 7 December 2006 Steel framed housing is the solution Within all sectors of the con- struction industry there is a greater appreciation of the quality that off-site steel frame construction can deliver. workforce and adopts the Industrial Compulsory scheme will Coatings Applicator Training and Certification Scheme (ICATS). 7 December 2006 improve steelwork painting Dr Tordoff said steelwork con- Sign of the times tractors and painting contractors In the past three years there A new national transportation the quality and long term perform- undertaking work for clients who has been a huge requirement infrastructure sector scheme has ance of the coatings used to protect have adopted the scheme, should for signature bridges. Everyone been published on the United steel assets,” added Dr Tordoff. be working towards compliance to seems to be launching design Kingdom Accreditation Scheme As the scheme has been drafted meet the implementation programme competitions these days. Steel (UKAS) web site. to be sector neutral it is suitable to set out in the scheme’s document. gives more architectural scope The scheme (NHSS 19A) covers be adopted by clients across the “Contractors should be taking ac- for creativity. the quality management system transportation industry and applies tion now as they should be working requirements for corrosion protection to new works and maintenance towards having 40% of their corro- Building of ferrous materials in transportation projects. sion protection operatives certified 8 December 2006 infrastructure assets using industrial The Highways Agency and to the ICATS scheme by 31 July 2007 Less fire risk coatings. Network Rail are adopting the and achieving full compliance by 31 “We tend not to do multi-sto- “Put simply, it applies to the paint- scheme as a mandatory requirement January 2008,” he added. rey timber frame. We tend to ing of steelwork in structures such for suppliers contracted to them to On 27 March there will be a joint use steel - there’s less fire risk as bridges, stations, toll booths and undertake any painting of structure Highways Agency, BCSA, RQSC and it has better dimensional interchanges,’ said Dr Derek Tordoff, steelwork. seminar on the above subject. See stability.” BCSA Director General. It includes specific requirements the diary section on page 10 for “It has been designed to enhance for contractors to achieve a skilled details.

8 NSC January 2007 NEWS NEWS IN BRIEF

New steelwork specification Following some concerns raised in the industry media as to the The 5th edition of the National Struc- that are relevant to specifiers and joint BCSA and Galvanizers Associa- competence of steel erectors tural Steelwork Specification for steelwork contractors. tion publication. that have slinging and signal- Building (NSSS) is now available. The reference standards for steel The book is available for £25 in the ling endorsements on their Published on 1 January, the revi- sections, structural bolts and weld- UK, £28 inside the EU, and £31 in the CSCS cards rather than a sepa- sion was prompted by the develop- ing have been updated, erection rest of the world. The price includes rate CPCS, the BCSA said steel ment and eventual introduction of tolerances for foundation supports postage and packing. erectors are suffering at the a forthcoming European standard have been aligned with the National hands of misinformation. Peter for the fabrication and erection of Structural Concrete Specification l The 2007 BCSA diaries were structural steelwork. Known as and the preferred generic treatment printed with a preliminary draft copy Walker, BCSA Health & Safety BS EN 1090-2, this standard is widely specification has been moved from of the 5th edition of the National Manager said many steel erec- expected to be introduced in 2008. the commentary in to the NSSS. Structural Steelwork Specification tors take the ‘erecting capital Dr David Moore, BCSA Director The welding quality system stand- for Building Construction. They structures’ route, which is an of Engineering said: “At the start it ard BS EN ISO 3834-3 is now part of incorrectly acknowledged Chris ECITB scheme, and this training was decided not to completely adopt the NSSS and steelwork contractors Murgatroyd of Arup as providing board has far more knowledge the philosophy of the standard, but are required to operate their quality further advice. Chris Murgatroyd of the steel industry and is better to create a kind of halfway house systems in line with these standards. had no formal contact with the placed to state whether individu- between the 4th edition of the NSSS A new section has also been NSSS Steering Committee and his als are competent or not. and the new European standard.” added giving guidance on post-gal- name should not have appeared. The Consequently, the updated specifi- vanised inspection to liquid metal member of the Steering Committee cation contains a number of changes assisted cracking. This is based on a from Arup is Mike Banfi. The Metals Forum has appoint- ed John Parker, Chief Executive of the Cast Metals Federation, Gietart launch new shot blast machines as its new chairman. Outgoing chairman Derek Tordoff, Direc- Kaltenbach has introduced a com- combined expertise, this is the sin- tor General of the BCSA, be- pletely new and restyled range of gle most significant, shot blasting comes one of the Forum’s two Gietart shot blast machines. introduction. with initial customer Vice Chairmen. The machines, which recently de- response very positive.” buted at the EuroBLECH exhibition in Sprint models offer medium duty Hanover, will eventually replace the capacities and the Marathon units FICEP UK has supplied a 1045 current generation of shot blasters. suit heavier demand and faster con- LBH CNC cutting line to a new The units comprise three product veyor speeds. warehousing facility in War- groups named Sprint, Marathon and Meanwhile, the Triathlon ma- rington, Cheshire. The line has Triathlon, with 14 standard model op- chines are designed for shot blasting a sawing capacity at 90-degrees tions throughout the three groups. our 20 years of very successful as- steel fabrications, as well as plate, of 1,015mm x 450mm, at 45-de- Simon Smith, Kaltenbach UK Sales sociation with Gietart and the many profiles and pipe up to 4m wide and grees of 620mm x 450mm and at and Marketing Director, said: “From UK installations benefiting from our 1.6m high. 60-degrees of 350mm x 350mm.

CSC has implemented Corus Leicester regeneration takes shape Advance Section information The redevelopment of Leicester city centre is gathering “We predominantly used one 120t capacity mobile crane within its Fastrak Structural pace with the city’s first speculative office building nearing for lifting steel members, which had to reach the whole site Steel Design suite, with all new completion. The 50,000ft2 four-storey steel-framed struc- from one position,” said Mr Clark. CD releases incorporating the ture in Colton Square forms the initial phase of the much A steel framed glass atrium will complement the office rebranded sections. Users of the larger New Business Quarter project. accommodation which will be completed to a Category A software who wish to make use Main contractor Bowmer & Kirkland said the job in- fit-out and billed as a business park in a city centre loca- of the updated section informa- volved demolition, configuring a semi-basement car park tion. tion list should contact CSC at: under the footprint and the provision of a transfer slab for D A Green erected 320t of structural steelwork for the [email protected] an adjacent residential development. project as well as metal decking and precast concrete Sean Clark, Contracts Manager for steelwork contrac- stairs. tor D A Green, said working around the basement and the Simons Construction has nomi- site’s tight dimensions were very challenging. nated Barrett Steel Buildings as “The building’s basement was already excavated and its Supplier of the Year for 2006. covered by a ground floor concrete slab by the time we John Robertson, Associated started steel erection,” said Mr Clark. “The slab couldn’t Director of Simons said, Barrett support heavy loads so we had to use lightweight electric Steel had consistently delivered cherry-pickers to lift steel,” a high level of quality service to Another challenge was the fact that the building’s foot- a number of prestigious clients, print accounts for the majority of the site and consequently one mobile crane had to be permanently sited in one posi- such as B&Q and Asda. tion throughout the erection period.

NSC January 2007 9 NEWS

Environmental title goes to innovative forest walk

An unusual project to create a treetop level at the centre of the forest walk using recycled steel and timber through the branches to above the has scooped the Environmental tree top canopy. It has also been category at the British Construction built with future expansion in mind Industry Awards 2006. The 200m so that new routes can be added to long walkway, constructed for the the walk way at the towers. Forestry Commission, reaches 20m Judges praised the “great high and takes members of the public eco-project, which has drawn through the canopy of Salcey Forest crowds of enthusiastic visitors” in Northamptonshire. and commented on the minimal William Haley Engineering amount of maintenance that will be supplied a range of footbridges using required and the low impact it has ‘off the shelf’ recycled steel tube had on the forest. It was also said lattices supporting a timber deck. that the project is “an idea with The steel bridge sections of the huge potential for the future at other walk way span 20m between high locations.” level steel towers constructed by Managing Director Bill Haley said: Francis & Lewis International (Haley “This year is Haley Group’s 20th Engineering’s sister company). The anniversary. In this time we have six towers were constructed using built schools, hospitals, factories stiff steel tubes to form the legs and and supermarkets but never have we a series of cross bracing to ensure built something that has given people maximum stability. so much pleasure as the Salcey The walkway was constructed Forest Treetop Walkway. To receive during 2005 and rises from ground this award too was a bonus.”

The first phase of the new £23M Manager said: “The steel framing el- Infill walling Caludon Castle School in Coventry ement of the project worked well on has been completed with a quantity a complicated job where we were of Metsec galvanised steel framing. constructing around an already provides fast Used as infill walling, it was speci- working school.” fied because of its fast and dry instal- The project has been constructed solution lation. ISEC erected 1,150m2 of 150mm in two phases, with the initial part and 200mm deep sections between consisting of a new three-storey the main structural frame of the build- crescent shaped building that is now ing during a 16 week programme. open. Main contractor said The second phase is now under- it specified Metsec’s steel framing way, comprising of a four-storey on the grounds of its build speed, all block and a two-storey block, which dry construction and flexible design. are both scheduled for completion Peter Farmer, Galliford Try Project by Spring 2007.

Diary For all SCI courses, contact Sandi Gentle, email: [email protected] telephone: (01724) 405060 For BCSA seminars contact Gillian Mitchell, email [email protected] telephone: 020 7839 8566 16 January Disproportionate 30 January 20 February 2007 27 March 2007 Collapse and the Revised Multi-Storey Steel Framed Multi-Storey Steel Framed One day seminar on Building Regulations Structures Structures Corrosion Protection for One day course. . One day course. Manchester. One day course. Southampton. Infrastructure Projects. A joint Highways Agency, BCSA and 24 January 7-8 February 2007 27 February 2007 RQSC seminar. Cost £80 + VAT. Acoustic Design in Steel BS 5950-1:2000 Under- Portal Frame Solutions National Liberal Club, London One day course. London. standing the Essential Principles One day course. Croydon. Two day course. Edinburgh. 22 May 2007 25 January – 1 March 15 March 2007 One day seminar on 3D Steel in Construction - 13 February 2007 One day seminar on 3D Modelling for the Steel Evening CPD Acoustic Design in Steel Modelling for the Steel Construction Industry. 6 two-hour sessions on consecutive One day course. Dublin Construction Industry. Cost £80 + VAT (£60 + VAT to BCSA Thursday evenings. Cost £80 + VAT (£60 + VAT to BCSA members). Cedar Court Hotel, Warrington, Birmingham and London members). National Liberal Club, London Huddersfield

10 NSC January 2007

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NSC January 2007 11 Analysis Competitive gap crushes

Steel frames remain the fastest and most cost effective framing solution for both commercial offices and residential apartments according to the latest Cost Comparison Survey, reports Nick Barrett.

Steel specifiers can have a hearty chuckle at recent For the residential building steel sheet piling concrete centre attempts to suggest that concrete provides a basement 4% cheaper than concrete, can compete against steel as a choice of framing with a 7% cost advantage on frame and floors. solution on either cost or programme. The latest The overall building is 3% cheaper in steel than in a 13 year series of Cost Comparison studies, in concrete, even before the advantages of faster and the 23 year series of market share surveys, construction is factored in. commissioned by Corus, confirms that steel is Mr Todd said: ’We can all take comfort from still the preferred choice for framing for very good the fact that the survey confirms what the market reasons, not the least of which is cost. ‘The buildings already knows, that steel is well ahead of concrete selected for analysis in this study are typical of those even when we look only at costs. After speed is actually built in the real world, which is perhaps not factored in, which translates into less time on site, the case with recent copycat surveys,’ says Corus higher quality, a safer working environment and an General Manager Alan Todd. overall more sustainable approach to construction, The Cost Comparison survey is commissioned steel is winning each year by Corus and is independently produced “We can all take hands down, by a team including Arup, Mace, comfort from the Steel also delivers and the Steel Construction Institute. It compares predictability of the relative costs of constructing two commercial fact that the survey project completion buildings in steel and concrete, and also the relative confirms what the which is increasingly costs for residential apartments. The conclusions the key for many reached also hold for hospitals, education and retail market already knows, developers.’ buildings. that steel is well Department of The buildings designed and costed for the Trade and Industry survey are a four storey, speculative office building ahead of concrete cost indices confirm in Manchester, an eight storey London head office the results of the building and an eight storey residential building in even when we only study and show steel the London suburbs which includes two storeys of look at costs.” solutions to be more below ground parking and a retail ground floor. competitive than Since the previous survey in 2005 the cost of ten years ago; in 2006 steel sections are still around frame and floors for the two office buildings has the same price they were in 1995, in real terms. risen by an average of 6% for steel and 5% for Concrete on the other hand is typically 20% more concrete. Whole building costs are up on average expensive in real terms today than ten years ago. 5% for steel and 4% for concrete. However, in Mr Todd concluded: ‘The importance of the absolute terms steel is still on average £33 per survey is simply that it confirms what we already square metre cheaper for frame and floors than know, which is that thanks to the efforts of the entire concrete and for the whole building steel is 4% UK constructional steelwork supply chain over the cheaper, or £55 per square metre. Not surprisingly, past 25 years we have a superb product, which steel also remains the fastest construction method. continues to offer best overall value.’

12 NSC January 2007 Advance Sections

Advancing ahead

It’s four months since Corus launched the Advance branding for its beams, columns, channels, angles, and bearing piles manufactured in the UK, and many structural engineers and designers are beginning to take advantage of its benefits.

One of the main motivations behind the introduction 10% for the steel frame on a typical multi-story office of the Advance brand marking was the requirement block. The design team has to balance the costs for structural sections used in Europe to comply with between one element and another. Lighter beams the Construction Products Directive (CPD). are usually deeper which results in a taller building To specify the product standard (EN 10025:2004) and higher cladding costs - invariably shallower is no longer sufficient and CE Marking is the heavier beams are the best option. “You throw simplest method to show compliance with the CPD. pennies at the steel frame to save pounds on the As sections specified by designers need to cladding,” comments Mr Swann. comply with the CPD, Corus has simplified the This is where the extended range offered process and was the first steel producer in the world by Advance really has something of interest to Traditional markets, such as to be approved to CE mark its sections and plates designers. The new range has extended key serial large retail developments, as meeting the requirements of the EU directive. sizes at the heavier end, and introduced three will be supplied with top Walter Swann, Corus Regional Technical Manager new serial ranges, one of which is a “shallow and quality product. comments: “Engineers are today faced with a great meaty,” 533 x 312 UKB series. “I’m sure this will deal of change in European legislation, and many be a huge success in the commercial and car park of them are concerned about possible impacts sectors where depth is critical, and it will allow on safety and efficiency of design. The CPD, as it designers to save those valuable pounds for their affects structural steel, is one of these changes, and clients,” he adds. designers take great comfort that simply specifying Mr Swann goes on to say that it doesn’t stop Advance sections from Corus can effectively make there. “One of the new serial ranges, the 533 x 165 the problem disappear,” UKB, is perfect for the shed market, and there’s “Designers have he adds. already been a lot of interest shown by fabricators to consider how Over the past 10 who are active in this sector. years there has been The new Advance range is not just simply a they can deliver a significant change re-branding exercise of a standard product. It’s the lowest cost in emphasis in steel been carefully and thoughtfully extended to meet design for buildings in the demands of specific key sectors, whilst also building to their the commercial sector. ensuring that traditional markets are supplied with client, and lightest “Gone are the days quality product,” says Mr Swann. when designers could Another important advantage of steel and no longer means specify the lightest Advance are the recyclability credentials. cheapest.” section and be done “Sustainability is increasingly important for with it. Designers, construction and it is now at the forefront of before they put pen to paper, have to consider how designers’ minds,” says Mr Swann. they can deliver the lowest cost building to their Because sustainability is a relatively new issue, Client, and lightest no longer means cheapest,” says many engineers feel uncertain about how best Mr Swann. to meet the requirements. “Sourcing materials, External cladding costs account for around 25% such as Advance sections, is a big step in the right of the total cost of a building, compared to around direction,” Mr Swann sums up.

NSC January 2007 13 Retail/Leisure

New look for Hull city centre

The new The city of Kingston-upon-Hull has committed more “In anticipation of plans, but we were later than £1.5bn on a raft of new developments during instructed to omit it,” Mr multipurpose the past five years. These landmark projects are set its reinstatement, Hinde says. “However, in to transform and reshape the skyline, with one of we designed anticipation of it’s rein- St Stephen’s the largest on-going schemes being the 40-acre St statement, we designed development has Stephen’s mixed use development. the building to the building to work This city centre project sits adjacent to the main work either with with or without the mez- benefited from a railway station and will comprise 30,000m2 of retail, zanine. It has since been 14,000m2 of leisure, 220 homes, a hotel, 1,550 car or without the reinstated.” number of important parking spaces and a new home for the locally ac- mezzanine.” Mr Greenock agrees steel elements claimed Hull Truck Theatre Company and the Albe- and says: “All columns, marle Centre for children’s music. external and internal, are capable of taking the extra including more than Scheduled to be completed by the Spring of this floor level.” By adding the mezzanine level, Bone year, the project is anchored by a large 10,200m2 Steel will supply another 200t of structural steel- one mile of shop Tesco supermarket which Jaime Greenock, Project work and approximately 1,500m2 of decking. front steel. Manager for Bone Steel, says is the largest steel However, reinstating the mezzanine level at a element of the project requiring approximately 700t. relatively late stage means the erection process The Tesco store is basically a large single-storey will be a little challenging. The Tesco store is nearly warehouse erected on top of a concrete slab. “This complete, including the roof. Adding another floor building was erected with multi-span columns and level inside a finished building means doing the cellform rafters,” Mr Greenock says. erection without the aid of any cranes. Although the 8.5m-high store is linked to an ad- “There’s no room inside for even a small mobile jacent mall, it is an independent structure designed crane and the concrete slab probably wouldn’t take to incorporate large open plan areas. The building the weight,” Mr Greenock says. “We’’ll be using tel- has a footprint of 120m x 84m and consists of 20 ehandlers to bring the steel into the structure and to bays, each 6m deep. do most of the steel erection.” Stuart Hinde, Director at Hinde Carville Design The entire project is centred around a curved (Bone Steel’s design engineers) explains: “Alternate 200m-long mall, covered by the development’s ‘hit and miss’ internal columns give the client the signature steel wave-like roof. With the Tesco store required open plan store, resulting in 16.5m long situated at one end, there are retail outlets of dif- cellbeam rafters on a 6m x 16.5m grid, and 12m fering sizes arranged along the mall on two levels. long spine beams.” Although both sides of the mall are essentially con- However, what has made the Tesco store inter- crete structures, there is some significant steelwork. esting, for those involved, is the 1,500m2 mezzanine A large steel roof covers the retail and cinema level. complex, which is situated on the mall’s southern “Originally a mezzanine level was in the client’s elevation. Constructed on top of concrete columns,

14 NSC January 2007 Retail/Leisure

the roof covers an area of some 10,000m2. Mr Hinde To the north side of the hotel stands the Albe- Above, previous page: says, a lightweight steel roof for this concrete struc- marle theatre building which Mr Greenock says The retail roof supports ture was always planned as it offers a quick and cost has been the most challenging aspect of the whole the mall’s signature roof. Above left: All of the Tesco effective solution. project. store’s columns can take Large open areas were important in the retail The steel-framed theatre consists of a main extra loading. outlets and cinema complex, so cellbeams were pre- rectangular three-storey block with an elliptically- Above: Fourteen skewed dominantly used with some spanning up to 30m. shaped music centre building attached to the front. columns support the music “As the roof follows the curvature of the mall, “The music centre is oval and needed 14 skewed centre. most of the grids are different and this proved chal- columns as its frame,” says Mr Greenock. “They lenging in the design stage,” explains Mr Hinde. couldn’t be conventionally bolted down using base “We also used cellbeams where necessary, instead plates because they’d just fall over, so we had to tie of trusses, as this was more cost effective.” them together with cross members using a frame.” “Erecting this roof meant we were continually Bone Steel had to pre-assemble the steel frame punching off concrete,” says Mr Greenock. “Some on site and then build this frame into another frame. of the concrete columns were cast with bolts which This then created the oval shape and the gaps were allowed the steel members to be easily installed, filled in with beams. and on the perimeter columns there were cast in “The structure had to be supported until the first plates and we welded the beams to their fins,” he concrete floor was poured,” says Mr Greenock. “Up adds. to this point it wasn’t stable.” The roof also supports the adjacent signature The oval-shaped music centre has a footprint of roof over the mall. “We had to take the extra load- 150m2 and columns used ranged from 254 x 254 x ing into account and use a robust bracing system,” 76 to 356 x 368 x 129 UKCs says Mr Hinde. For logistical reasons the oval-shaped structure Beneath the roof along the mall itself, Mr Green- was erected first and then the rectangular block was ock estimates Bone Steel will eventually supply and built around it. erect more than one mile of shop front steelwork Mr Hinde says the music centre structure lent and perimeter louvre steel around the outside of the itself to steel design. “It looks a little like a tee-pee. Tesco store. “Much of this is dummy steelwork, cov- The geometry was again challenging, with both el- ering up the concrete columns,” says Mr Greenock. liptical and radial curves to floor plans as well as “Aesthetically, steel looks better than concrete.” a reducing footprint as you move up through the More than 400t of steel is being used for the structure,” he adds. eight level hotel which is being constructed on top FACT FILE of the development’s concrete car park. Mr Green- Below: The project covers a vast St Stephen’s ock explains the decision to use steel for this part of previously derelict site adjacent to development, Hull the project. “ A steel-framed structure is lighter and the city’s main railway station. Main client: ING Real also quicker to erect,” he says. Estate Development Architect: Holder Mathias Structural engineer: White Young Green + Hinde Carville Design Main contractor: HBG Construction Steelwork contractor: Bone Steel Project value: £200M Steel tonnage: 1,700t

NSC January 2007 15 Distribution

Portal frames expand software boundaries

Designing one of the UK’s largest ever distribution centres required some close cooperation between Atlas Ward and its software provider.

FACT FILE Two adjacent portal frame warehouses with a Ian Bell, Atlas Ward Structural Design Distribution Centre, combined floor area of more than 1million/ft2 Coordinator for the project, says: “Atlas Ward Swinton, South Yorkshire represent the UK’s largest single site distribution appreciated the technical software support that was Architect: centre, and one of the largest currently under provided by CSC in order to ensure that we were RPS Burks Green construction in Europe. able to provide a cost effective and efficient design Structural engineer: Situated on Brookfields Park - a large new for the 10 span portal frame structure.” RPS Burks Green Main contractor: commercial development on the outskirts of Another challenging aspect of the design work Bowmer & Kirkland Swinton, South Yorkshire - the two warehouses was the large mezzanine floor area in the larger Steelwork contractor: have both been let to a single customer and will be warehouse. This unit has an overall footprint of Atlas Ward Structures used as a distribution centre for household fabrics 300m x 220m, with the mezzanine level measuring Project value: £53.5M and clothes. 300m x 70m. Steel tonnage: 6,150t “This is by far the biggest steel erection job Mr Bell explains: “The mezzanine level was we’ve done in the last year,” Andrew Bramley, designed as a free-standing structure supporting Atlas Ward Project heavy imposed loads (up to 20kN/m2), with the rest “This is by far the Manager, explains. of this area of the warehouse, a 300m wide x 16m biggest steel erection “We’ll eventually high portal frame, sitting on top of it.” erect more than More than 1,300t of structural steelwork was job we have done in 6,000t of hot and used for the mezzanine level which sits 5m above the last year” cold rolled steel on the warehouse floor level. Above this level Atlas the site.” Ward had to support provision for an upper Above: The two ware- Working in conjunction with main contractor proprietary floor system. This floor system does houses represent the first Bowmer & Kirkland, Atlas Ward began steel erection not form part of Atlas Ward’s contract, but the phase of construction at in June and finished the majority of its work in floor columns supporting the heavy mezzanine are Brookfields Park. October. Fit out of the two warehouses also began extended to the upper level and designed to support in October with the client scheduled to move-in in the upper level grillage. March. As well as storage space, both warehouses Justin Watts, Bowmer & Kirkland Project contain office blocks. Inside the larger unit there is a Manager said: “The warehouses have footprints 50m-long x 12m wide two-level office, while in the of 410,000ft2 and 710,000ft2 respectively. Both other there is another two-level block measuring have maximum 21m clear haunch heights with the 13m wide x 54m long. smaller unit consisting of six spans, and the larger Because the buildings are distribution centres building consisting of 10 spans. both required large open plan areas. Consequently, Warehouses of this size are uncommon, and the bigger structure has nine 28.6m spans and consequently during the design stage Atlas Ward a single 43m span, and the smaller unit has five stretched the capability of CSC’s Fastrak Portal equal spans of 33m and one span of 38m. Both Frame Design software to facilitate the design have alternate internal columns on the valley lines procedures required. removed.

16 NSC January 2007 NSC January 2007 17 Distribution

Deep piles take the weight for new Corus facility

The new Automated Distribution Centre now under construction for Corus at its Scunthorpe works required an extremely rigid structure to guarantee its successful operation. The use of steel bearing piles ensured that the foundations were up to the task.

Imagine a giant IKEA type racking system, but “It’s not a building, the need for very tight instead of bamboo furniture it is holding bundles of tolerances which will heavy steel sections on 24 levels of supports until it’s more like a allow the building’s an automated crane system plucks the bundles off giant machine.” automated stacking and takes them away and loads them onto trucks or system to pick up and set rail. That gives you some idea of the massive new down bundles of steel which will weigh up to 6t,” Automated Distribution Centre (ADC) now under explains Mr Clayton. construction for Corus at its Scunthorpe works. Paul Saddington, Corus ADC Project Manager, “It’s not a building, it’s more like a giant says: “When open Scunthorpe’s Automated machine,” says Corus Senior Project Engineer Ian Distribution Centre will be able to store up to Clayton. 17,000t of steel sections completely under cover and “The whole structure has been designed around protected from the elements.

18 NSC January 2007 Distribution

The new facility will not only enhance Corus Construction and Industrial’s end product quality for sections, but it will also minimize handling-time and increase load flexibility, while also improving safety standards. All these factors together will ensure that all products are dispatched on time in the best possible condition”. The ADC is a very substantial building, housed within a steel-framed warehouse, which measures 159m in length, has a width of 25.7m and is just over 30m high. The building has four aisles running the length of the structure and each of these lanes comprises Above: Two rigs installed 316 piles for the ADC’s 24 different levels for storing stock. An extremely foundations. rigid structure had to be guaranteed as the facility is Left: Billington Structures being built to exacting tolerances to cope with the supplied and erected all of need to support the stock contained within it and en- the steelwork for the ADC. able the computerised cranes to function correctly. In addition the infinite array of possible load combinations, meant that a foundation solution had to be found which could ultimately guarantee the required rigidity of the structure above ground. “We originally thought about a concrete raft for the foundations, but after surveying the site we knew it couldn’t adequately support the building,” explains Mr. Clayton. “We needed extremely rigid foundations without the risk of differential settlement and so the only solution was piling.” The “We have nearly new ADC was built on a backfilled area adjacent to the existing Medium Section Mill where no building as much steel work had previously been undertaken, as it had could have resulted in cracking below ground level under the been used as an open storage area. which may have gone unnoticed until it was load A site investigation indicated underlying tested when replacement would be difficult.” says structure as in limestone at 22m on which it was intended to found Mr Webster. the building’s the piles to achieve their initial designed working As the superstructure design progressed, the loads of 2000 KN. loads on individual piles increased from 2000 KN to main frame.” “It was at this point we chose to use steel bearing 2500 KN. To meet the tight construction programme, piles for the project,” says Mr Saddington. “Driven pile installation was already in progress and it was steel piles are best in these conditions, they’re found that to achieve the required set for the higher quicker and there’s no resulting spoil to deal with load, the piles had to be founded at a depth of 28m using this method,” he explains. on ironstone rather than the limestone at 22m. The civil engineering contractor for the project Once again, the decision to use steel bearing piles was Clugston and its work included the piling as proved to be advantageous as it meant that this last Right: The ADC will ensure well as installing the concrete slab. minute change could be accommodated by simply all stock is stored under “The required capacity was an important driver in extending the piles. cover. the whole construction process,” says Neil Webster, The piles were designed to be installed in one Below: Each pile has a Clugston’s Site Manager. “So a total of 316 piles 10m-long length, with a second 15m-long section steel plate and a concrete were driven, one for each of the ADC structure’s col- welded on and then driven into the ground. pile cap with bolts to accept a column. umns. Consequently we have nearly as much steel “Fortunately, steel bearing piles lend themselves under the structure as in the building’s main frame.” to extension, so welding on a third section wasn’t a Beginning in February, the entire piling operation major problem,” says Mr Webster. was completed in a 14-week programme by two Once the piles had been installed each one piling rigs. All the piles were Corus Advance 305 had a steel plate welded to the top, followed by a x 305 x 186 UKBP units manufactured at Corus’ concrete pile cap with holding down bolts cast in Teesside Beam Mill and were installed on 3m by 6m to accept the steel columns. All of this was done as grid to match the column spacing of the ADC. The the surrounding concrete slab was cast and once 305 x 305 x 186 UKBP was selected at it is a very this was complete all the bolts were individually ‘driveable’ pile and also gives a high load capacity. surveyed to ensure their exact positioning before The likelihood of finding obstructions was also being grouted into place. deemed to be quite high as the piles were being “This ensured that the columns were going up in driven through backfilled material that was made up the right position and it also made the subsequent largely of unknown material and clay. “Using steel erection of the main steel frame much quicker,” says piles meant that if we encountered any obstructions Mr Clayton. “All the steelwork contractor had to do during driving, the pile wouldn’t be damaged. was bolt on the columns in the full knowledge that Hitting obstructions with a pre-cast concrete pile the positioning had all been taken care of.”

NSC January 2007 19 Commercial

Steel regeneration for old mine

Redeveloping brownfield sites is now an important sector as many former industrial areas are Above: The new distribution centre is opened up for new business. In South Yorkshire a new distribution centre has been erected on located on the site of the former Houghton Main a former open cast coal mine and will bring new employment to the area. Coal Mine

South Yorkshire was once one of the main coal base and steel work was able to start in May. FACT FILE mining regions of the UK. The sector employed The warehouse measures 321m x 145m, and ProLogis Park, Barnsley thousands of people and provided the fuel for most consists of four 36m Main client: ProLogis of the other major local industries such as steel, “We split the entire spans with 40 eight Developments Architect: Alan Johnson textiles and heavy engineering. process into four metre wide bays. Today, the majority of the mines have been Grenville Associates Structural engineer: decommissioned leaving behind large tracts of land Griffiths, Caunton’s phases and completed RPS Burks Green ready for redevelopment. One of the largest of these the job in a speedy Project Director says Main contractor: brownfield sites is located at Houghton Main, near the main challenge Buckingham Group Barnsley, where a speculative 49,025m2 distribution eight weeks.” with this project and Contracting centre has recently been completed. any job of this size, Steelwork contractor: ProLogis bought the 36-acre prime site in is always delivering the steelwork on time as well as Caunton Engineering October 2005, after Harworth Estates - a division of completing the erection within the programme. Steel tonnage: 1,700t UK Coal - closed the colliery and reclaimed the land “All of this we did,” says Mr Griffiths. “We split for employment use. the entire process into four phases and completed Buckingham Group Contracting, working on the job in a speedy eight weeks.” behalf of ProLogis, has constructed the cross-dock To allow for the large spans, Caunton used facility which has 84 docks, a two-storey external 610mm x 229mm beams as rafters throughout, office block, a small internal hub office and easy while internal and external columns are access to both the M1 and M18 motorways. predominantly 762mm x 267mm beams. However, before work on the structure could The warehouse also features cantilevered eaves begin some thorough ground improvements had detail with bullnose flashing and feature CHS to undertaken. Rob Miller, Buckingham’s Contracts bracing to the elevations. While at the unit’s two Director explains: “The former open cast mine was goods entrances there are also CHS columns acting backfilled and remedial work had been completed as supports to building’s brise soleil sunshade Above and below: Under before we came on site. But in places the backfilling louvre blades. the structure’s concrete slab the earth needed to was 30m deep and there was a possibility of long Buckingham completed its work at the end of be dynamically compacted term settlement.” November, and the speculatively built warehouse is to provide sufficient The company consequently employed dynamic now ready for use. rigidity. compaction over the area to a depth of 6m. “This Commenting on the project, Leader of Barnsley gave us a stiffened raft of material on which to build Council Stephen Houghton CBE says: “We are the warehouse,” Mr Miller explains. delighted that ProLogis chose to make this Once the site had been sufficiently compacted significant investment in Barnsley and welcome the Buckingham then constructed the concrete local jobs this development will create.”

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NSC January 2007 21 Entertainment Steel plays a starring role in the latest Pinewood classic

Speed was paramount for the design and construction of a new film studio. Martin Cooper goes behind the scenes to find out how a design and build job was completed in just sixteen weeks.

FACT FILE Designing and constructing steel structures can allowed us to fix the geometry of the structure Pinewood Studios 007 sometimes be a complex and time consuming proc- quickly, which helped enormously,” he adds. Stage, Buckinghamshire ess. But a new film studio at Pinewood has recently Bourne Engineering came up with a design for Main client: highlighted the speed with which a design and build the new studio, which more or less covered the Pinewood Studios contract can be completed with the use of steel and same footprint as the old building. “Our scheme Architect: Foster Willis off-site assemble. was taken on-board by the client without any tweak- Structural engineer: Last July’s well publicised fire which destroyed ing, as this would have added time and eaten into Adams Kara Taylor & Bourne Engineering Pinewood Studios’ Albert R. Broccoli stage, where the programme,” adds Mr Pillinger. Main contractor: filming of the latest James Bond movie, Casino Roy- Once the design was approved, sister company Bluestone ale, had just finished, left the facility in urgent need Bourne Steel was also able to fabricate approxi- Steelwork contractor: of a replacement building. mately 20% of the steelwork within the initial eight Bourne Steel Pinewood needed the new studio to be rebuilt weeks. Steel tonnage: 1,450t and functional as quickly as possible because film- As the new structure sits on the previous build- ing is due to begin early this year for the next Bond ing’s footprint, main contractor Bluestone says it movie. had minimal ground preparation to do before steel- Alan Pillinger, Bourne Engineering Managing work erection began. However, a site survey ruled Director says his company was contracted to a 16 out reusing the old foundations and consequently week programme, which basically left his team with new column bases were needed. eight weeks to complete the steel-framed structural “The new columns are founded midway between design, 3D modelling and then download all of the the old columns’ bases, so the new grid pattern is information. off-set by half a grid,” explains Mr Pillinger. “A condensed time-scale for the size of project,” Nick Flexen-Cook, Bourne Steel Divisional Man- says Mr Pillinger. “But the client knew from the ager says this increased the length and width of the beginning the constraints we were under and they structure by about 5m. “Because of existing build-

22 NSC January 2007 Entertainment

ers,” explains Mr Flexen-Cook. “Otherwise, the build- Left: The building covers ing’s floor will pretty much all be water and some the world’s largest indoor very long spans, as no internal columns could be water tanks. installed, were required.” Above: Under the long To support the roof and accommodate the 48m span trusses a beam spans Bourne Engineering designed a series of 16 grillage will support trusses. These large elements are 52.88m long, 4.3m scenery and equipment. deep in mid-section and 3m deep at the eaves. A fur- ther two smaller trusses, measuring 28m in length, Below: A total of 16 have also been erected in the lean-to. 52m-long trusses have Each truss was brought to site in three separate been lifted into position. pieces and assembled next the building. “We de- Photos: Robby Whitfield, signed a set of trestles we dubbed “toast racks” into Central Photography which we inserted the sections to enable them to be bolted together,” explains Mr Flexen-Cook. Once as- sembled the trusses each weighed 28t and required Bourne to bring a 400t capacity mobile crane onto site to lift them into position. As well as spanning the water tank, the trusses also form another integral element of the building. Underslung from the bottom boom of each truss there is an interlinking grillage of runway beams - 405 in total - which have a global loading of 2.5kN/m2. “This is an equivalent loading to a multi-storey carpark,” explains Mr Pillinger. “The structure is therefore very rigid and the grillage will allow the film makers to hoist and hang scenery and equip- ings on two sides, the new structure was slightly ment from trusses,” he adds. constrained as to how much larger it could be,” he The trusses also incorporate and support a net- says. “And, importantly, the whole building just has work of maintenance pedestrian walkways, five run- to cover the water tanks.” ning the length of the building and a further three The tanks, Mr Flexen-Cook is referring to just hap- spanning the width. pen to be the world’s largest indoor water tanks, with Another important part in achieving the 16 week a capacity of more than one million gallons. They programme was to fabricate and pre-assemble as were initially con- much of the steelwork off-site in order to save valu- The tanks just happen structed for the 1977 able time. A prime example of this are the four inter- to be the world’s Bond movie, ‘The nal staircases leading to the maintenance walkways. Spy Who Loved Me’ These bespoke modular units were each delivered largest indoor water and have since been to site, by sister company Bourne Off-Site Solutions tanks with a capacity used for major water (BOSS), in five segments and then simply bolted to- scenes in most of the gether. of more than one subsequent spy movie “This helped with the overall speed of the million gallons series. project,” says Mr Pillinger. “By installing modular The new building units meant the staircases already came complete has a length of 102m, a width of 48m and is 19.2m with linings and fire cladding, which negated having high. This covers the main water tank, while a small- to employ other trades.” er interconnected tank is subsequently covered by a The studio is due for completion this month, end- 28m x 15m lean-to structure. ing a successful programme which has seen a 3D “Inside the new building there is a 9m wide con- model evolve into a finished structural frame in just crete apron around the tanks, on to which we were 16 weeks. Despite all the fancy gadgetry at Q’s dis- able to position our smaller cranes and cherry-pick- posal, even he would have been impressed with that.

NSC January 2007 23 Transport

Building bridges for east London

A total of ten new steel bridges have been erected as part of the northern extension to the East London Railway. Martin Cooper walks the line from Shoreditch to Dalston.

The tenth and final new bridge for the northern ex- new Shoreditch High Street Station will be built - to Right: A second extension has tension of the East London Railway was lifted into Dalston. been proposed from Dalston to position during a four week period last Autumn. This northern section makes use of redundant Highbury & Islington The 350t, 48m-long structure spanning the Re- lines and infrastructure once used by trains originat- gent’s Canal, more or less brought to an end a nine ing from the now closed Broad Street Station. Much month erection process which also included refur- of the new line will run along the 2.5km-long Kings- bishing a further 11 bridges on the line. land Viaduct which is parallel to the A10. It is along Below: New bridges underwent Part of a £900M scheme to extend the existing the viaduct that all of the bridge replacement work a trial erection at Rowecord’s railway, the project will act as a catalyst for regener- has been carried out in conjunction with steelwork factory. ation and will ease over-crowding on other rail and contractor Rowecord Engineering. underground lines. Phase one of the project, will Mark Howard, Project Manager for Taylor extend services north from Shoreditch to Dalston Woodrow says it is a testament to the Victorian Junction and south from New Cross to Crystal Pal- engineers that ace and West Croydon, with an operational railway It is a testament to the so much of the being delivered by 2010. Victorian engineers that viaduct is still in The bridge replacement and refurbishment work, good condition. which was completed in December, is all part of a so much of the viaduct “Apart from sec- £35M enabling works package awarded to Taylor is still in good condition. tions of strength- Woodrow Construction in June 2005 by Transport ening, some brick for London. is due to begin the main replacement work and re-pointing, a lot of the struc- works this month (January). ture is sound,” he says. ’s work mainly involved the As for the viaduct’s bridges, it was decided, after northern extension and included preparing the line a thorough site inspection, that 11 bridges would north from the Bishopsgate Goods Yard - where the remain in place and undergo refurbishment - includ-

24 NSC January 2007 Transport

Far left: The arches being lifted into position on the Regent’s Canal bridge. Left: One of the 30m-long main girders gets positioned.

ing the Kingsland Bridge over the A10 - with the rest “There’s no particular reason why it has never being demolished and replaced with new structures. been used for rail before, but tied arches have However, prior to Rowecord erecting any of the become popular with road applications and they’re ten new bridges, some major logistical planning certainly in vogue,” he adds. had to be undertaken. Wayne Powlesland, Project Rowecord fabricated the bridge in 51 separate Manager for Rowecord, explains: “The streets sections and erected it in a four week programme. around this part of London, especially either side of The main span is 30m long and then spliced the viaduct, are very narrow and busy. So getting sections at either end extend the bridge to its overall materials and plant equipment on site was very length. The structure is 10m high and 13m wide with challenging and had to be planned well in advance.” a slight skew to give the correct rail alignment. All steel was delivered at night, to avoid the The original bridge was demolished in 2005 apart heaviest traffic, and Rowecord looked at, and from its cast iron centre piers which were recently planned the best possible routes into London. There removed to storage. In order to accommodate the are almost 170 arches along the viaduct and 75% new structure’s extra loading, some major piling FACT FILE of these are rented by small businesses. “This was work needed to be carried on the abutments. East London Railway something we had to take into account during bridge “We had to liaise closely with British Waterways enabling works erections,” Mr Howard says. “We had to ensure during the erection process,” Mr Howard explains. Main client: access was not obstructed by our cranes or materials “The canal had to remain open so we adopted a Transport for London Structural engineer: and these businesses remained fully functional, stop-go method of construction and every time a Faber Maunsell which was difficult in some narrow streets,” he adds. steel member was lifted we had marshalls on the Main contractor: The two largest new bridges on the extension canal banks stopping any barges.” Taylor Woodrow were also the most challenging, says Mr Howard. Rowecord also supplied and erected another Construction Towards the southern end of the viaduct, a bridge eight bridges along the viaduct. Starting at the Steelwork contractor: known as Union Walk Two required the largest northern end, Middleton Road is a 17.4m long Rowecord Engineering individual sections and the erection was also com- structure consisting of two plate girders and 7 Steel tonnage: 1,300t pounded by the very tight and congested site. x 9.5m wide cross members. The structure also “This bridge and the Regent’s Canal crossing included two collision beams and in total the bridge were the most difficult,” Mr Howard adds. required 100.5t of steelwork. “However, we were lucky with the Union Walk Two “We did a trial erection at our yard and this structure as an adjacent building had just been helped when it actually came to the real erection demolished. We came to an arrangement with the process,” Mr Powlesland explains. “Knowing landlord and this gave us extra space for the steel everything erection and storage.” The Regent’s Canal crossing was going “The narrow alleys around Union Walk were is believed to be the first tied to fit too small to accommodate a mobile crane and exactly consequently we had to position an 800t capacity arch bridge ever used on a allowed crane 40m away from the site to get the needed railway. for quicker radius,” Mr Powlesland explains. erection The Union Walk Two bridge is heavily skewed programmes and most of the smaller bridges, like and connects at either end with refurbished bridges. Middleton Road, were typically erected in one or The structure consequently required two off-set two days.” 21m-long plate girders, 27m-long abutment trimmer South of Middleton, Rowecord erected new cross beams with welded doubler plates on the top bridges over Haggerston Road, Arbutus Street and bottom, while the deck was constructed with and Lee Street, all close to the soon to-be-built 358mm x 406mm x 340mm sections. Haggerston Station. Further south comes the Meanwhile, almost halfway along the viaduct’s Dunston Street bridge and then the canal crossing. length the line crosses the Regent’s Canal. Here Between the canal and the Union Walk site, the extension’s largest new structure was erected, Rowecord erected structures over How Street, a 48m-long steel tied arch bridge with plate girder Pearson Street and Cremer Street, which are 13.9m, tie beam suspended from arches by RHS’s at 14.1m and 12.5m long respectively. equidistant points. Summing up, Mr Powlesland says contracts George Lawlor, Associate Director for Faber with this many bridges don’t come along very Maunsell says he believes this to be the first tied often and there was the potential for a number of arch bridge ever used on a heavy railway. “The hiccups. However, by working in close cooperation client and wanted a with Taylor Woodrow, all the structures went up in signature bridge and this design best suited their the alloted time. “Without any hitches which was requirements.” pleasing in such a congested area,” he says.

NSC January 2007 25 Education

Completing the hillside challenge

Built on a steep Bristol hillside, the Redland Green School is a striking, innovative and environmentally sensitive educational establishment.

When Bristol City Council gave the go-ahead for the and used as an outdoor recreational zone construction of its new school at Redland Green, surrounded by a safety barrier. The roof is also part one of the main objectives was that it would blend of the school’s water attenuation system. A ditch into the surrounding hillside. in the grounds will store excess water temporarily, While the need for the school was never in allowing discharge rates to be balanced. This has doubt, many local residents had voiced their been designed to protect properties and allotments, concerns that the structure, sitting on a green site downhill of the school, from being affected by the once occupied by playing fields, would look a little school’s run-off stream. obtrusive. A 150m-long tunnel has been drilled from the Architects and structural engineers BDP came up base of the site underneath the allotments through with a design, whereby the school, which juts out which water will be discharged at a controlled rate. of the hillside, has been designed into the sloping Much of the construction is a combination of landscape. concrete and steel, with the majority of the levels Top: Circular roof lights The school has six blocks ranging from one above ground floor and all of the roofs constructed are a feature of two to four storeys, and main contractor Cowlin with steel. blocks. Above: The completed Construction has had to build to 17 different floor Running the length of the development and school will blend into the levels to compensate for the gradient. separating the six blocks in half is a 180m-long hillside. To emphasis the school’s green credentials, ‘street’ which is covered with an ETFE covering the three blocks on the northern side of the supported on steel trusses. Meanwhile, the three The school has been development will be blocks to the south of the ‘street’ are essentially linked together under free-standing structures. designed into the one green roof. On Barrie James, Project Manager for SIAC Tetbury top of a concrete roof Steel, says the main challenge for steel erection sloping landscape slab much of the area was the amount of curves within all of the blocks. will be covered in sedum, which will help to control Incorporating the buildings into a sloping site water run off while ensuring some camouflage for means they are curved on plan and section, as they the overall structure. gently snake down the hill. “This made for some The contractor says this area will be landscaped interesting cantilevered steel roof detail design as

26 NSC January 2007 NSC January 2007 27 Education

FACT FILE Redland Green School, Bristol Main client: Bristol City Council Architect: BDP Structural engineer: BDP Main contractor: Cowlin Construction Steelwork contractor: SIAC Tetbury Steel (formerly Bison Structures) Project value: £30M Steel tonnage: 520t

Left: Blocks A, B and C. Bottom Left: No two sections of the steel roof are identical.

28 NSC January 2007 Education

there is no repetition of roof members,” Mr James each 21m-long and span over a canteen. adds. “I doubt this part of the project could have Rob Steele, Cowlin Site Manager states: “The been done in anything other than steel.” job went very well due to the pre-start planning The three classroom buildings (which will be meetings, cooperation between SIAC Tetbury Steel landscaped) on the north side are known as A, B and Cowlin’s site team and weekly site coordination and C. Block A, nearest the top of the hill, has two- meetings involving other sub-contractors. Teamwork storeys incorporating steel columns and a steel roof. makes the site programme run very smoothly due to “Block B was an interesting structure for all site personnel pulling together.” us,” says Mr James. “This building contains a Once the steel frame is completed the entire sports hall, which basically covers two-levels and school will be clad in imported Canadian timber, required seven heavy trusses to give the open plan which has been pre-dried to double the working environment.” lifespan. The wood is in two distinctive colours, with The trusses each weigh 11.5t and measure 18.3m black on one elevation and light brown on the other. long x 4m deep. The steelwork company says the These hues are said to help the structure blend into only way of installing the trusses was to use a 120t the hillside, especially in the Autumn and Winter. capacity crane to lift each section into position. “We “Steel wise this isn’t the biggest job we’ve ever Above: The EFTE then in-filled all steel members with a smaller 50t done, but it’s certainly one of the most complex,” Mr covered street. capacity mobile crane while the truss was still being James says. The structure does look very innovative Below: The roof curves held by the other crane,” Mr James explains. “We and none of the local residents have complained in two directions. then connected all steelwork into connections which about their view being spoilt. link into the adjacent SIAC has installed blocks A and C.” two steel screens The other three blocks to between the blocks south of the ‘street’ vary in height from to create an enclosed one level to four passageway and two levels. Although the structures are free- steel bridges linking standing, SIAC has adjacent blocks installed two steel screens between the blocks to create an enclosed passageway and two steel bridges linking adjacent blocks. The middle block of these three - E - also required two large heavy trusses to be installed. Resting on SIAC also supplied metal decking. top of hollow section columns, the two members are

NSC January 2007 29 Technical

Fire protection of beams with web openings Dr Ian Simms, Manager of Fire Engineering at SCI, reports on recent developments affecting the design of fire protection for cellular beams.

Introduction the forces and moments acting on the web post Beams with web openings can include between adjacent openings. Horizontal shear forces cellular beams fabricated from rolled are developed in the web post in order to transfer sections or plate girders with circular or the incremental tension force to the bottom tee. Web rectangular openings cut in the webs. posts in asymmetric beams will also be subject to Typical long span floor beams of this in-plane moments in order to maintain equilibrium nature are designed to act compositely between the top and bottom tees. with the floor slab, as shown in Figure 1, greatly increasing their load carrying Web Post Buckling capabilities. Due to the shear forces transferred across the web The use of asymmetric sections is also posts between openings failure can occur due to common, as this allows the weight of out of plane buckling, as illustrated by Figure 3. The Figure 1: Typical beam with web openings. the beam to be reduced by removing tendency for the web post to buckle will depend on steel from the top of the section where it is less ef- the width of the web post the height of the opening fective. and the d/t ratio of the web.

Structural Behaviour The structural behaviour of beams with web open- ings is relatively complex and involves five main failure modes which are included in the design model for ULS design at room temperature and in fire conditions. The modes of failure are described briefly below, for a fuller explanation of the struc- tural behaviour reference may be made to Lawson et al(1) or P068(2).

Figure 3: Web post buckling behaviour observed in a cellular Global bending & vertical shear beam test. Photograph courtesy Westok Ltd. The global bending capacity of the beam is calcu- lation at the centre of each opening and is based The web post on a reduced cross sectional area. A composite buckling mod- beam with large openings tends to resist bending el currently predominantly by tension in the bottom tee and preferred is compression in the concrete. The global bending based on the capacity and the vertical shear capacity are rarely concept of an the critical modes of failure in cellular beams. In equivalent bending the utilisation of the bottom flange of the strut, as shown section will depend on the ability of the web posts Figure 4: Equivalent strut model. in Figure 4. to transfer horizontal shear. In beams with closely This model has been calibrated against test results spaced openings the web post will often govern the and finite element analysis for cold and fire design. load carrying capacity. The shear resistance of a cellular Vierendeel bending beam takes account of the contribution Vierendeel of the web and flange for rolled sec- bending occurs tions and the concrete slab. The precise due to the transfer distribution of shear between the top of shear forces and bottom tees is determined from across an opening, the analysis procedure and must be which results in compatible with the vierendeel bending the development capacity of the tees. of local moments Figure 5: Vierendeel bending of a stiffened rectangular opening. in the top and Web Post bending and horizontal bottom tees. The bending resistance of the top Figure 2: Typical model of the forces and shear tee can be based on the composite cross section moments acting on the web post. The model shown in Figure 2 shows where appropriate. When calculating these local

30 NSC January 2007 NSC January 2007 31 Technical

bending resistances the moment capacity will be elastic modulus with temperature. Figure 6 shows reduced to account for the presents of axial forces the variation of yield stress & elastic modulus and shear due to global bending behaviour. Figure 5 with temperature. The greater reduction in elastic shows vierendeel bending of a stiffened rectangular modulus with temperature compared to yield opening. strength means that the buckling behaviour can become more significant to structural performance Fire conditions as the temperature of the member increases. A similar structural model is adopted for fire design taking into account the variation of the material Thermal distribution properties with temperature. The temperature For the fire limit state, the structural model must distribution for cellular beams with various forms assume a temperature distribution on the beam of fire protection needs to be determined from fire cross section in order for the capacity of the section testing. The structural behaviour of the cellular to be calculated. From observations of previous beam may differ in fire conditions compared to fire tests on beams, the non-perforated web will room temperature conditions. The mode of failure observed in fire may be different to that observed for room temperature design. The principle difference will be the buckling behaviour of the web posts which is influenced Figure 6: Relative values of material properties of steel with by the variation of temperature. yield strength and Figure 7: Thermal distribution. J0215 kalt_struct_ad.qxd 1/21/05 3:13 PM Page 1

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32 NSC January 2007 Technical

generally be at a higher temperature relative to the flanges, due to the difference in thickness between these elements. However, the web posts between openings have been observed to experience a further increase in temperature relative to a non- perforated web, which accentuates the effect of the change of material properties with temperature. Figure 7 shows the temperatures that must be determined for a cellular beam in order to allow the structural model to be applied to the fire design case. These temperatures are normally taken as relative values with respect to the bottom flange temperature, which is used as a reference point. The temperature of the web post has been found to be dependant on the width of the web post and Figure 8: Relationship between bottom flange temperature and webpost temperature. also the fire protection material used to protect the beam. Figure 8 shows the relationship between web post temperature and bottom flange temperature Limiting Temperatures for a number of test specimens covering a range of As the mode of failure of cellular beams in fire web post widths and coating types. From these test conditions can change to web post buckling due to results the generic relationship used in the RT1085(3) the combined effect of changing material properties structural model has been derived and is shown as and non-uniform temperatures, the limiting the solid line in Figure 8. temperature of this type of section will depend on A similar relationship to that shown in Figure 8 the performance of the fire protection material used has been observed for sprayed cementatious fire to protect it. Some fire protection materials perform protection materials(4). At present no data is available better than others in terms of their ability to limit the for board protection systems. increase in web post temperature. J0215 kalt_struct_ad.qxd 1/21/05 3:13 PM Page 1

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NSC January 2007 33 Technical

rial to be evaluated over the range of deflections typically experienced by this type of section. The loaded section is fabricated from plate, and acts compositely with a slab cast on Z28 Holorib steel decking. The shear connection between the beam and the slab is achieved by two studs per trough, through deck welded to the top flange of the beam. The 120mm slab is constructed using C30 concrete and is reinforced with A142 mesh. To gather the necessary thermal data four unloaded 1200mm sections are also included in the furnace, which enables a range of web post widths and section factors to be evaluated. These sections are fabricated from rolled sections or plates and Figure 9: Loaded test specimen. contain two half openings and one full opening, as shown in Figure 10. The geometries of the It is not adequate to base the fire protection re- sections used varies depending on the period of fire References quirements of cellular beams on room temperature resistance to be evaluated. Standard sections are 1. Lawson et al, structural analysis using the concept of load ratio, defined for 60, 90 and 120 minutes fire resistance. ‘Design of composite as is the case with plain beams. An elevated tem- Figure 11 shows two of these indicative specimens asymmetric cellular perature structural analysis which takes account of located in the beams and beams with temperature distribution and instability affects must furnace, on either large web openings’, be conducted for cellular beams. side of the loaded Journal of Constructional beam. Steel Research, V62 N6, ASFP Testing Protocol Full details of the June 2006. The purpose of the testing protocol is to determine testing protocol 2. P355 ‘Design of suitable thermal data to enable a product specific are given in the Composite Beams with version of the web post bottom flange temperature fourth edition of Large Openings for relationship to be determined. This can then be ‘Fire protection Services’, SCI, 2007. used as part of a structural analysis in order to deter- for structural 3. ‘Guidance on the mine appropriate limiting temperatures for design steel in Figure 9: Internal view of the furnace prior to fire testing. Photograph use of intumescent purposes. buildings’(5). courtesy Leigh’s Paints. coatings for the fire The process requires that a conventional ‘plain protection of beams beam’ assessment is available, for each product Design Guidance with web openings’, which is to be tested and evaluated for use on cel- Generic design guide for composite cellular beams RT1085 V3, 2006. lar beams. The ‘plain beam’ assessments provide with circular openings exists in the public domain 4. Large web openings a baseline dry film thickness onto which an appro- in the form of SCI report RT1085. The limiting tem- for service integration priate enhancement for cellular beams is added, perature data given in this report, tabulated for a in composite floors, based on the limiting temperatures determined from range of beam geometries, takes account of the tem- Final Report for ECSC structural analysis. For each fire resistance period perature distribution in the cellular cross section and Research Contract covered, a multi-temperature analysis based on the the web post instability effects. This report covers 7210-PR-315, 2003 ‘plain beam’ data must also be available for the intu- the design of beams with circular web openings but 5. ‘Fire Protection for mescent coating system being evaluated. does not currently cover fabricated plate girders with structural steel in The fire testing programme for cellular beams rectangular openings. Intumescent manufacturers buildings’, 4th edition, needs to consider a range of section geometries. have also tested to the ASFP protocol and obtained ASFP/SCI/FTSG, 2007. Each fire test is carried out using five sections each a product specific version of RT1085, which contains fitted with thermocouples to measure temperature more favourable limiting temperatures based on the data. The specimens tested and the location of the actual performance of their particular intumescent instrumentation is standardized as part of the pro- coating. tocol. The basic section types are shown in Figure Specialist fabricators Westok Ltd and Fabsec Ltd 9 and Figure 10. One loaded section is included in have free design software that includes fire design of each test in order to permit the fire protection mate- Cellular beams and fabricated plate girders respec- tively. Fabsec provide a bespoke solution, FireBeam, for fabricated plate girders with circular or rectangu- lar openings. Westok’s Cellbeam software permits the design to calculate the limiting temperature for cellular beam designs which can then be fire pro- tected using manufacturers data obtained from the ASFP protocol described above. The structural designer needs to be aware that the fire protection of cellular beams is closely linked to the structural design. More information about the structural design will be required by the fire protec- Figure 10: Indicative specimens for the determination of tion specialist than for plain beams. thermal distributions.

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NSC January 2007 35 40 Years Ago in Building with Steel Digital computer reduces design time for the British Pavilion at Montreal The Universal and International Exhibition of 1967, known more colloquially as ‘Expo 67’ is part of Canada’s Centennial Celebra- tions. The Exhibition is due to open in Montreal for six months from April 1967. The 1,007 acre site is spread over three main areas, the Ile Sainte Hélène, Ile Notre Dame and the Mackay Pier, all in the St. Lawrence River. It has been estimated that about 30 million people will visit the exhibition during its six month’s run and that on peak days attendance will be in the region of 350,000. The British pavilion sits on a three-acre site on the Ile Notre Dame. Reminding visitors that the British are an island people, the cliff-like walls rise out of the water. The mass is big, with exhi- bition halls deeply cantilevered over moats and the site dominated by the tower. The tower is a 202.5 ft tall 12-sided truncated tapered structure founded at a level of 50.00 O.D., the highest point being at a level Above and right: The British pavilion of 252.5 O.D. The external width of the base is approximately 90ft occupies three acres and uses nearly reducing to about 54 ft at roof level, itself about 60ft below the 1,000t of structural steelwork. highest point of the shell. The structure has a main internal floor Below: The tower erected and the at the level 73.00 O.D. and basically forms a hollow shell some sheeting being added. 120ft in height up to the flat roof level. An intermediate platform Bottom: The suspended platform between the main floor and the roof is suspended by rods from the on trial erection at the fabricator’s sides of the structure. The steelwork is clad externally with asbes- works. tos cement sheeting and provision is made for an internal lining. The main floor is constructed of 4-in. thick concrete slab carried in metal trays supported by the structural framework. It was decided that the most economical design could be devel- oped in the time available only by the use of computer methods of analysis. Accordingly, arrangements were made with Prof. M. R. Horne of Manchester University to use the programme ‘Lineal Analysis on Plane Space Frames’ produced by his department to run on their computer. very approximate calculations were made for the steel framework and sizes selected therefrom. An inter- mediate bicycle wheel diaphagm was added to the tower frame at this stage, but once the computer analysed the preliminary sizes against the loading conditions, it was decided this was unecces- sary. The suspended platform was not finalised until a late stage in the design. The ring beam was made fully rigid and designed to take the torque from the platform – here again the use of the computer proved invaluable.

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NSC January 2007 37 Advisory Desk

AD 306 Additional Moments in Braced Bays: 1

This is the first in a series of ADs that comment on the forces and moments to be designed for in beam-column-bracing connections in braced frames. AD 304 pointed out that the nominal moments that are assumed from beam eccentricity cannot be ignored, even if forces in the bracing system have been calculated from a pin-jointed analysis. This AD covers common connection details and offers advice on how the connections can be designed. The first common case is where the centre lines of the members are coincident, as shown in Figure 1. Two models are commonly adopted for the design of the connections shown in Figure 1. In the first model, the connection to the column is designed for a moment equal to He, where e is the vertical eccentricity from the beam centreline to the point the bracing centreline meets the column flange. Generally, this moment is dealt with by assuming that the point of rotation is the bottom flange of the beam. The vertical shear through the connection is the beam Figure 1: Typical bracing type connection for simple construction. reaction, plus the contribution from the component of the bracing force. If this model is adopted, the nominal moment in the column is due only to the assumed eccentric reaction of the beam shear. There is no contribution from the bracing force to the nominal moment in the column. An alternative model is to assume that the bracing is connected to the beam, and that the beam end connection remains truly pinned. In this case the end connection of the beam carries no moment, but must carry the beam shear and the vertical component of the bracing force. The column must be designed for the nominal moment from the assumed eccentric beam shear, plus an additional moment equal to V × D/2 where D is the column depth. In Figure 2 the setting out point (sop) of the bracing has been shifted to the intersection of the beam centre line with the column face. This is very similar to the second model described above, in that the column must be designed for an additional moment equal to V × D/2. It is also clear from Figure 2 that the vertical component of the bracing force adds to the shear in the beam from gravity loads, and this must be checked. The end connection is designed as a pin, to carry the vertical load from the bracing and the beam itself. In Figure 3, the common and convenient situation of shifting the sop to Figure 2: Bracing connections made to the beam. the junction of beam and column flanges is shown. The main effect is the additional moment equal to V × D/2 to be included in the column design. Additional shear and bending is produced in the beam, but this is generally not significant. The additional shear and moment is given below.

Additional shear, Q = H × B/L Additional bending moment, M = H × B/2 Where H is the horizontal component of the bracing force D is the depth of the column B is the depth of the beam L is the span of the beam

In summary, the additional moments that arise in braced bays due to the location of the setting out point must be added to the usual nominal moments from the beam end reactions and accounted for in the design of the column and its splices.

Contact: Thomas Cosgrove Email: [email protected] Tel: 01344 623345 Figure 3: Bracing set out to beam/column flange intersection.

38 NSC January 2007 Publications

For SCI publications, please contact Publication Sales: Tel: (Direct) 01344 636505 Fax: 01344 636570 Email: [email protected] Website: www.shop.steelbiz.org The Steel Construction Institute, Silwood Park, Ascot SL5 7QN

New Book Best practice for the specification and installation of metal cladding and secondary steelwork

‘This publication will a brief description of the available systems and their components and an promote a greater overview of the various performance criteria that should be considered by the specifier. Particular attention is paid to the structural performance of understanding of the the cladding, since inadequate strength and stiffness not only undermine the issues faced by the safety of the building, but also impact on several of the other performance construction team criteria such as airtightness and durability. Guidance is also included on and lead to better co- the specification of the purlins and side rails with particular reference to the interaction between the building elements and the provision of lateral operation on site and in and torsional restraint. Sections on cladding and purlin installation provide the design office’ an overview of the issues that need to be addressed in order to meet the performance criteria identified by the building designer. Author: M D Heywood Many of the issues covered have been brought to the attention of the SCI ISBN 978-1-85942-171 0, by industry representatives, whose advice and knowledge is the foundation 76 pp, A4 paperback for the guidance presented in the publication. The aim of the guidance is to (includes colour photographs), Dec 2006. Cat Ref: P346 promote good practice across the industry, leading to improvements in Health and Safety, efficiency and building envelope performance. This new publication presents guidance to designers and contractors on Although written with site practitioners in mind, much of the guidance the specification and installation of profiled metal cladding systems and the should also be useful to architects and structural engineers involved in the supporting purlins and side rails. specification of the building envelope and supporting structure. The guidance covers many aspects of cladding specification, including PRICES: Non-member £50, Member £25 (plus P&P)

Codes & Standards New and Revised Codes and Standards (from BSI Updates November 2006)

BRITISH STANDARDS Note: The date referenced in the BS EN 1998- 4:2006 Also incorporates Corrigendum 1 identifier is the date of the European Silos, tanks and pipelines BS EN 1993-1-8:2005 BS 5400:- standard. Supersedes DD ENV 1998-4:1999 Design of joints Steel, concrete and composite CORRIGENDUM 2 AMD 16571 bridges BS EN 1991:- BS EN 10268:2006 Also incorporates Corrigendum 1 BS 5400-2:2006 Eurocode 1: Actions on structures Cold rolled steel flat products with BS EN 1993-1-9:2005 Specification for loads BS EN 1991-1-7:2006 high yield strength for cold forming. Fatigue Supersedes BS 5400-2:1978 General actions. Accidental Technical delivery conditions CORRIGENDUM 2 AMD 16570 actions Supersedes BS EN 10268:1999 Also incorporates Corrigendum 1 BS EN PUBLICATIONS No current standard is BS EN 1993-1-10:2005 superseded BS EN 14889:- Material toughness and The following are British Standard BS EN 1991-3:2006 Fibres for concrete through-thickness properties implementations of the English lan- Actions induced by cranes BS EN 14889-1:2006 CORRIGENDUM 2 AMD 16569 guage versions of European Stand- and machines Steel fibres. Definitions, Also incorporates Corrigendum 1 ards (ENs). BSI has an obligation to No current standard is specifications and conformity publish all ENs and to withdraw any superseded No current standard is NEW WORK STARTED conflicting British Standards or parts superseded of British Standard. This has led to BS EN 1998:- BS EN 10029 (Revision) a series of standards, BS ENs using Eurocode 8: Design of structures for AMENDMENTS TO Hot rolled steel plates 3 mm thick or the EN number. earthquake resistance BRITISH STANDARDS above. Tolerances on dimensions, shape and mass BS EN 1993:- Will supersede BS EN 10029:1991 Eurocode 3: Design of steel structures Buy any BSI BS EN 1993-1-1:2005 ISO PUBLICATIONS Standard from the General rules and rules SCI at 20% discount for buildings ISO 4952:2006 CORRIGENDUM 1 AMD 16568 (Edition 3) Contact Publications Sales: BS EN 1993-1-2:2005 Structural steels with improved T: 01344 636505 F: 01344 636570 General rules. Structural atmospheric corrosion resistance Email: [email protected] fire design Will not be implemented as a British CORRIGENDUM 2 AMD 16572 Standard

NSC January 2007 39 BCSA Members

You can find email and The British Constructional website addresses for all these companies at Steelwork Association Ltd www.steelconstruction.org

BCSA is the national organisation for the steel construction industry. Details CONDER STRUCTURES LTD (Q2) WILLIAM HARE LTD (A 0 Q1) Wellington Rd, Burton-on-Trent, Staffs DE14 2AA Brandlesholme House, Brandlesholme Rd, Bury, BL8 1JJ of BCSA membership and services can be obtained from Gillian Mitchell MBE, Tel 01283 545377 Fax 01283 530483 Tel 0161 609 0000 Fax 0161 609 0409 Deputy Directory General, BCSA, 4 Whitehall Court, London SW1A 2ES LEONARD COOPER LTD (C F H K M 6 Q1) M. HASSON & SONS LTD (Q1) Balm Road, Hunslet, Leeds LS10 2JR 17 Glebe Rd, Rasharkin, Co. Antrim BT44 8SS Tel: 020 7839 8566 Email: [email protected] Tel 0113 270 5441 Fax 0113 276 0659 Tel 028 2957 1281 Fax 028 2957 1575 CORDELL GROUP LTD (Q4) HENRY SMITH (CONSTRUCTIONAL ENGINEERS) LTD Sotherby Road, Skippers Lane Industrial Estate, (C D E F H J 4) South Bank, Middlesborough TS6 6LP Wharton Steelworks, Winsford CW7 3BW KEY Tel 01642 452406 Fax 01642 464118 Tel 01606 592121 Fax 01606 559134 Classification Contract Value Categories COVENTRY CONSTRUCTION LTD (Q1) HESCOTT ENGINEERING CO LTD A All forms of building steelwork 10 Up to £40,000 Torrington Avenue, Coventry CV4 9AP Lochlands Viaduct, Larbert, Stirlingshire FK5 3NN B* Bridgework 9 Up to £100,000 Tel 024 7646 4484 Fax 024 7669 4020 Tel 01324 556610 Fax 01324 552970 C Heavy industrial plant structures 8 Up to £200,000 D High rise buildings 7 Up to £400,000 CROWN STRUCTURAL ENGINEERING LTD HILLCREST STRUCTURAL LTD E Large span portals 6 Up to £800,000 Burma Rd, Blidworth, Mansfield, Notts NG21 0RT Hillcrest House, Toynbee Road, Eastleigh, Hants SO50 9DT F Medium/small span portals and 5 Up to £1,400,000 Tel 01623 490555 Fax 01623 490666 Tel 023 8064 1373 Fax 023 8061 3586 medium rise buildings 4 Up to £2,000,000 CUSTOM METAL FABRICATIONS LTD Hills of Shoeburyness Ltd H Large span trusswork 3 Up to £3,000,000 Central Way, Feltham TW14 0XJ 17-19 Towerfield Road, Shoeburyness, Essex SS3 9QL J Major tubular steelwork 2 Up to £4,000,000 Tel 020 8844 0940 Fax 020 8751 5793 Tel 01702 296321 Fax 01702 297072 K Towers 1 Up to £6,000,000 L Architectural metalwork 0 Above £6,000,000 DGT Steel & Cladding Ltd HORWICH STEELWORKS LTD M Frames for machinery, supports for Atlas Works, Norwich Road, Lenwade,Norwich NR9 5SW Unit 10, Horwich Loco Ind. Est., conveyors, ladders and catwalks Notes Tel 01603 30820 Fax 01603 308201 Chorley New Rd, Horwich, Bolton BL6 5UE N Grandstands and stadia 1 Applicants may be registered in one or more D H STRUCTURES LTD (Q2) Tel 01204 695989 Fax 01204 669343 S Small fabrications categories to undertake the fabrication and the Tollgate Drive, Tollgate Industrial Estate, JAMES BROS (HAMWORTHY) LTD (E F H J N 4 Q3) responsibility for any design and erection of the Beaconside, Stafford ST16 3HS 19 Blandford Rd, Hamworthy, Poole BH15 4AW Quality Assurance above. Tel 01785 246269 Fax 01785 222077 Tel 01202 673815 Fax 01202 684033 Certification 2 Where an asterisk (*) appears against any FRANK H DALE LTD (D E F 1 Q4) JOY STEEL STRUCTURES (LONDON) LTD, Q1 Steel Construction company’s classification number, this indicates that Mill Street, Leominster, Herefordshire HR6 8EF London Industrial Park, 1 Whitings Way, East Ham, London E6 6LR Certification Scheme Ltd the assets required for this classification are those Tel 01568 612212 Fax 01568 619401 Tel 020 7474 0550 Fax 020 7473 0158 Q2 BSI of the parent company. Q3 Lloyd’s * For details of bridgework subcategories contact Discain Project Services Ltd JAMES KILLELEA & CO LTD (C D E F H N 1*) Q4 Other Gillian Mitchell at the BCSA. Hartburn Close, Crow Lane Industrial Estate, Stoneholme Road, Crawshawbooth, Rossendale, Lancs BB4 8BA Northampton NN3 9UE Tel 01706 229411 Fax 01706 228388 Tel 01604 787276 Fax 01604 407290 T. A. KIRKPATRICK & CO LTD ACL STUCTURES LTD (E F H M 4) A. C. BACON ENGINEERING LTD (E F H 6) DUGGAN STEEL Beltenmont, Kirkpatrick-Fleming, Lockerbie DG11 3NQ Holland Way Ind. Est., Blandford, Dorset DT11 7TA Norwich Rd, Hingham, Norwich NR9 4LS The Square, Millstreet, Co Cork, Republic of Ireland Tel 01461 800275 Fax 01461 800340 Tel 01258 456051 Fax 01258 450566 Tel 01953 850611 Fax 01953 851445 Tel 00 353 29 70072 Fax 00 353 29 70073 LEACH STRUCTURAL STEELWORK LTD AMSE LTD BALLYKINE STRUCTURAL ENGINEERS LTD (E F H J N 4 Q2) ELLAND STEEL STRUCTURES LTD (C D E F K 1 Q1) Brockholes Way, Claughton-on-Brock, nr Preston PR3 0PZ Clara Road, Moatee, Co Westmeath, Republic of Ireland 51 Lisburn Rd, Ballynahinch, Co Down BT24 8TT Philmar House, Gibbet St, Halifax HX2 0AR Tel 01995 640133 Fax 01995 640719 Tel 00 353 90 648 1184 Fax 00 353 90 648 1735 Tel 028 9756 2560 Fax 028 9756 2751 Tel 01422 380262 Fax 01422 380263 LEONARD ENGINEERING (BALLYBAY) LTD ASA STEEL STRUCTURES LTD BARNSHAW SECTION BENDERS LTD EMMETT FABRICATIONS LTD (E F H 6) St Patrick’s Street, Ballybay, Co Monaghan, Republic of Ireland Brick Kiln Lane, Parkhouse Ind. Est. West, Structural Division, Anchor Lane, Coseley, Hirst Wood Works, Hirst Wood Road, Shipley BD18 4BU Tel 00 353 42 974 1099 Fax 00 353 42 974 1001 Newcastle-under-Lyme, Staffs ST5 7EF Bilston, West Midlands WV14 9NE Tel 01274 597484 Fax 01274 588671 LOWE ENGINEERING (MIDLAND) LTD Tel 01782 566366 Fax 01782 564785 Tel 01902 880848 Fax 01902 880125 EVADX LTD (E F H J L M N 5 Q4) Bramshall Industrial Estate, Stone Road, ASME ENGINEERING LTD BARRETT STEEL BUILDINGS LTD (E F H 1 Q1) Unit 9, Tir Llywd Enterprise Park, St. Asaph Avenue, Bramshall, Staffs ST14 8SH Asme House, 788 Kenton Lane, Harrow, Middlesex HA3 6AG Barrett Court, Cutler Heights Lane, Dudley Hill, Bradford BD4 9HZ Kinmel Bay, Rhyl LL18 5JZ Tel 01889 563244 Fax 01889 563554 Tel 0208 954 0028 Fax 0208 954 0036 Tel 01274 266800 Fax 01274 266860 Tel 01745 336413 Fax 01745 339639 M D Fabrications Ltd AWF STEEL LTD Barretts of Aspley Ltd FAIRFIELD-MABEY LTD (A B 0* Q4) Queens Hill, Newport, South Wales NP20 5HJ 21 Lenziemill Rd, Lenziemill, Cumbernauld G67 2RL North Common Farm, Woburn Road, , NP16 5YL Tel 01633 266691 Fax 01633 844612 Tel 01236 457960 Fax 01236 452250 Lidlington, Bedfordshire MK43 0NN Tel 01291 623801 Fax 01291 625453 M&S Engineering Ltd Adey Steel Ltd Tel 01525 280136 Fax 01525 280137 FISHER ENGINEERING LTD (A 1 Q1) East Road, Lowthertown, Eastriggs DG12 6TD Falcon Industrial Park, Meadow Lane, BILLINGTON STRUCTURES LTD (A 0 Q1) Ballinamallard, Enniskillen, Co Fermanagh BT94 2FY Tel 01461 40111 Fax 01461 40542 Loughborough, Leics LE11 1HL Barnsley Road, Wombwell S73 8DS Tel 028 6638 8521 Fax 028 6638 8706 TERENCE MCCORMACK LTD (Q1) Tel 01509 556677 Fax 01509 828639 Tel 01226 340666 Fax 01226 755947 FOX BROS ENGINEERING LTD 17 Camlough Rd, Newry BT35 6JS Adstone Construction Ltd BILLINGTON STRUCTURES LTD (A 0 Q1) Ballycanew, Gorey, Co Wexford, Republic of Ireland Tel 028 3026 2261 Fax 028 3026 8177 Adstone House, Wassage Way, 456 Badminton Rd, Yate, Bristol BS37 5HY Tel 00 353 53 942 1677 Fax 00 353 53 942 1733 MALDON MARINE LTD Hampton Lovett Industrial Estate, Droitwich WR9 9NX Tel 01454 318181 Fax 01454 318231 GME STRUCTURES LTD Unit 16, West Station Ind. Est., Tel 01905 794561 Fax 01905 794040 BONE STEEL LTD Unit E11-E14, Wem Industrial Estate, Spital Road, Maldon, Essex CM9 6TW ALLERTON ENGINEERING LTD (B 5* Q3) P.O. Box 9300, Wishaw, Lanarkshire ML2 0YA Soulton Road, Wem, SY4 5SD Tel 01621 859000 Fax 01621 858935 Allerton House, Thurston Road, Tel 01698 375000 Fax 01698 372727 Tel 01939 233023 Fax 01939 234059 HARRY MARSH (ENGINEERS) LTD Northallerton, N. Yorkshire DL6 2NA F J BOOTH & PARTNERS LTD GIBBS ENGINEERING LTD (Q4) The Parade, Hendon, Sunderland SR2 8LT Tel 01609 774471 Fax 01609 780364 Dockside Road, Middlesbrough, Cleveland TS3 8AT 17A Axe Road, Colley Lane Industrial Estate, Tel 0191 510 9797 Fax 0191 510 9798 ALLOTT BROS & LEIGH Tel 01642 241581 Fax 01642 223398 Bridgwater, TA6 5LP MIDLAND STEEL STRUCTURES LTD Tel 01278 455253 Fax 01278 453174 Fullerton Rd, The Ickles, Rotherham S60 1DJ BORDER STEELWORK STRUCTURES LTD (C E F H J N 5) Golden Acres Lane, Binley, Coventry CV3 2RT Tel 01709 538000 Fax 01709 538004 Winchester House, 58 Warwick Rd, Carlisle CA1 1DR GLENTWORTH FABRICATIONS LTD (F H J K L M N 6 Q2) Tel 024 7644 5584 Fax 024 7645 9995 ALLSLADE PLC (E F H L 2) Tel 01228 548744 Fax 01228 511073 Molly Millar’s Bridge, Molly Millar’s Lane, Wokingham RG41 2WY MIFFLIN CONSTRUCTION LTD (D E F H M 4) Tel 0118 977 2088 Fax 0118 977 2907 Dundas Lane, Portsmouth, Hants PO3 5SD BOURNE STEEL LTD (A 0 Q2) Worcester Rd, Leominster, Herefordshire HR6 8AY Tel 023 9266 7531 Fax 023 9267 9818 St Clements House, St Clements Rd, Poole, Dorset BH12 4GP GOGGIN BUCKLEY STRUCTURAL STEEL Tel 01568 613311 Fax 01568 614935 THE ANGLE RING CO LTD Tel 01202 746666 Fax 01202 732002 Dromcollogher, Co Limerick, Republic of Ireland MILLTOWN ENGINEERING LTD Tel 00 353 63 83149 Fax 00 353 63 83170 Bloomfield Road, Tipton DY4 9EH W.S BRITLAND & CO. LTD (Q2) Garryhill, Bagenalstown, Co Carlow, Republic of Ireland Tel 0121-557 7241 Fax 0121-522 4555 Tilmanstone Works, Pike Road, Eythorne, Dover CT15 4NB GORGE FABRICATIONS LTD Tel 00 353 59 972 7119 Fax 00 353 59 972 7202 apex steel structures ltd Tel 01304 831583 Fax 01304 831983 Gorge House, Great Bridge Industrial Estate, NEWBRIDGE ENGINEERING LTD Kings Close, Charfleets Industrial Estate, Toll End Road, Tipton, West Midlands DY4 OHR Tees Bay Business Park, Brenda Rd, Hartlepool TS25 2BU BRITON FABRICATORS LTD (B 6 Q4) Tel 0121 522 5770 Fax 0121 557 0415 Canvey Island, Essex SS8 0QZ Watnall Road, Hucknall, Notts NG15 6EP Tel 01429 866722 Fax 01429 869811 Tel 01268 660 828 Fax 01268 660 829 Tel 0115 963 2901 Fax 0115 968 0335 GRAHAM WOOD STRUCTURAL LTD (A 1) NEWTON FABRICATIONS LTD ARROMAX STRUCTURES LTD (Q4) Lancing Business Park, Chartwell Road, Lancing BN15 8TY 9 York Street, Ayr, Ayrshire KA8 8AN BROWNE STRUCTURES LTD Tel 01903 755991 Fax 01903 755384 Langwith Junction, Mansfield, Notts NG20 9RN Queens Drive, Newhall, Swadlincote, Derbyshire DE11 OEG Tel 01292 269135 Fax 01292 610258 Tel 01623 747466 Fax 01623 748197 Tel 01283 212720 Fax 01283 215033 GRAYS ENGINEERING (CONTRACTS) LTD NORRIS BROS LTD ATLAS WARD STRUCTURES LTD (A 0* Q1) Globe Industrial Estate, Rectory Road, Grays, Essex RM17 6ST Englishtown, Stradbally, Co Waterford, Republic of Ireland BUTTERLEY LTD (A B 3* Q4) Tel 01375 372411 Fax 01375 375079 Sherburn, Malton, N. Yorkshire YO17 8PZ Ripley, Derby DE5 3BQ. Tel 00 353 51 291 222 Fax 00 353 51 292 322 Tel 01944 710421 Fax 01944 710512 Tel 01773 573573 Fax 01773 749898 D A GREEN & SONS LTD (E F H J N 3 Q1) NUSTEEL STRUCTURES LTD (B H J K L 4* Q1) ATLASCO CONSTRUCTIONAL ENGINEERS LTD Whaplode, Spalding, Lincs PE12 6TL Lympne, Hythe, Kent CT21 4LR CAIRNHILL STRUCTURES LTD (C F H J L M 5* Q4) Tel 01406 370585 Fax 01406 370766 Rowhurst Industrial Estate, Apedale, Chesterton, Sun Works, Waverley Street, Coatbridge,Lanarkshire ML5 2BE Tel 01303 268112 Fax 01303 266098 Newcastle-U-Lyme ST5 6BD Tel 01236 449393 Fax 01236 428328 GREGG & PATTERSON (ENGINEERS) LTD (Q4) Tel 01782 564711 Fax 01782 564591 ON SITE SERVICES (GRAVESEND) LTD (Q4) Riverside Works, Ballyskeagh Road, Lambeg, Co Antrim BT27 5TD Wharf Road, Denton, Gravesend, Kent DA12 2RU CAUNTON ENGINEERING LTD (Q1) Tel 028 9061 8131 Fax 028 9062 2813 B D STRUCTURES LTD (E F H 5*) Moorgreen Ind. Park, Moorgreen, Nottingham NG16 3QU Tel 01474 321552 Fax 01474 357778 Westhoughton Ind Est, James St, Westhoughton, Lancs, BL5 3QR Tel 01773 531111 Fax 01773 532020 HAD-FAB LTD (Q4) Tel 01942 817770 Fax 01942 810438 OVERDALE CONSTRUCTION SERVICES LTD Macmerry Ind. Est., Tranent, East Lothian EH33 1RD Millers Avenue, Brynmenyn Industrial Estate, Bridgend CF32 9TD CHIEFTAIN CONTRACTS LTD Tel 01875 611711 Fax 01875 612711 BHC LTD Antonine Works, Broomhill Road, Bonnybridge FK4 2AL Tel 01656 729229 Fax 01656 722101 Edinburgh Road, Carnwath, Lanarkshire ML11 8LG Tel 01324 812911 Fax 01324 814927 WILLIAM HALEY ENGINEERING LTD (Q1) PMS Fabrications Ltd Tel 01555 840006 Fax 01555 840036 Bellcombe Works, East Brent, CLEVELAND BRIDGE UK LTD (A B 0* Q3) Thomas Lane, Burgh Road Industrial Estate, BSB Structural Ltd nr. Highbridge, Somerset TA9 4DB Carlisle, Cumbria CA2 7NA Cleveland House, Yarm Rd, Darlington, Co Durham DL1 4DE Tel 01278 760591 Fax 01278 760587 Whitecross Industry Park, Whitecross, Tel 01325 381188 Fax 01325 382320 Tel 01228 599090 Fax 01228 599091 Nr Linlithgow, West Lothian EH49 6LH HAMBLETON STEEL LTD HARRY PEERS STEELWORK LTD (Q1) Tel 01506 840937 Fax 01506 840932 COMPASS ENGINEERING LTD (C E F K 4) Gatherley Road, Brompton-on-Swale, Whaley Road, Barugh, Barnsley S75 1HT Elton St, Mill Hill, Bolton BL2 2BS Richmond, North Yorkshire DL10 7JH Tel 01204 528393 Fax 01204 362363 Tel 01226 298388 Fax 01226 283215 Tel 01748 810598 Fax 01748 810601

40 NSC January 2007 BCSA Members

PENCRO STRUCTURAL ENGINEERING LTD (Q4) H. YOUNG STRUCTURES LTD (C E F H J N 6) Rösler UK Celtic Steel Services Orpinsmill Road, Ballyclare, Co. Antrim BT39 0SX Ayton Road, Wymondham, Norfolk NR18 0RD Unity Grove, Knowsley Business Park, Caerphilly Road, Ystrad Mynach, Mid Glamorgan CF82 6EP Tel 028 9335 2886 Fax 028 9332 4117 Tel 01953 601881 Fax 01953 607842 Prescot, Merseyside L34 9GT Tel 01443 812181 Fax 01443 812558 QMEC LTD Tel 0151 482 0444 Fax 0151 482 4444 CORUS SERVICE CENTRE Quarry Road, Bolsover, Nr Chesterfield S44 6NT VOORTMAN UK LTD Farnigham Road Station, South Darenth,nr Dartford DA4 9LD Tel 01246 822228 Fax 01246 827907 ASSOCIATE MEMBERS Unit 5, Mercian Park, Felspar Rd, Tel 01322 227272 Fax 01322 864893 STRUCTURAL COMPONENTS RSL (SOUTH WEST) LTD (E F H M 6) Amington Rd, Tamworth B77 4DP CORUS SERVICE CENTRE Millfield Industrial Est., Chard, Somerset TA20 2BB ALBION SECTIONS LTD (Q4) Tel 01827 63300 Fax 01827 65565 Badminton Rd Trading Est., Yate,Bristol BS37 5JU Tel 01460 67373 Fax 01460 61669 Albion Rd, West Bromwich,West Midlands B70 8BD PROTECTIVE SYSTEMS Tel 01454 315314 Fax 01454 325181 Tel 0121 553 1877 Fax 0121 553 5507 JOHN REID & SONS (STRUCSTEEL) LTD (A 1) AMERON INTERNATIONAL CORUS SERVICE CENTRE 296-298 Reid Sreet, Christchurch BH23 2BT AYRSHIRE METAL PRODUCTS (DAVENTRY) LTD (Q1) Blackwell Road, Huthwaite, Sutton in Ashfield, Notts NG17 2RL Spittlegate Industrial Estate, Grantham, Lincolnshire NG31 7UP Tel 01202 483333 Fax 01202 499763 Royal Oak Way, Daventry NN11 5NR Tel 01623 511000 Fax 01623 559616 Tel 01476 565522 Fax 01476 562459 Tel 01327 300990 Fax 01327 300885 REMNANT ENGINEERING LTD FORWARD PROTECTIVE COATINGS LTD CORUS SERVICE CENTRE Unit 161, Lydney Industrial Estate, BARNSHAW PLATE BENDING CENTRE LTD Vernon St., Shirebrook, Mansfield, Notts NG20 8SS Blackamore Road, Walker Industrial Estate, Harbour Road, Lydney, GL15 4EJ Corporation Rd, Audenshaw,Manchester M34 5LR Tel 01623 748323 Fax 01623 748730 Guide, Blackburn BB1 2LJ Tel 0161 320 9696 Fax 0161 335 0918 Tel 01594 841160 Fax 01594 843208 INTERNATIONAL PAINT LTD Tel 01254 55161 Fax 01254 670836 RIPPIN LTD Cellbeam Ltd Protective Coatings, Stoneygate Lane, CORUS SERVICE CENTRE Thistle Ind. Est., Church Street, Cowdenbeath KY4 8LP Unit 516, Thorp Arch Estate, Wetherby, West Yorkshire LS23 7DB Felling, Gateshead NE10 0JY South Street, Glasgow G14 0BX Tel 01383 518610 Fax 01383 513099 Tel 01937 840614 Fax 01937 840608 Tel 0191 469 6111 Fax 0191 495 0676 Tel 0141 959 1212 Fax 0141 959 0111 ROBERTS ENGINEERING COMPOSITE PROFILES UK Ltd LEIGH’S PAINTS CORUS SERVICE CENTRE 16D Bergen Way, Sutton Fields Ind. Est., Hull HU7 0YQ 15 Moor Road, Broadstone, Dorset BH18 8AZ Tower Works, Kestor Street, Bolton BL2 2AL Moira Rd, Lisburn, Co. Antrim BT28 2SN Tel 01482 838240 Fax 01482 830697 Tel 01202 659237 Fax 01202 659288 Tel 01204 521771 Fax 01204 382115 Tel 01846 660747 Fax 01846 660748 J. ROBERTSON & CO LTD (L M S 9) CORUS PANELS & PROFILES (Q1) SigmaKALON MARINE & PROTECTIVE COATINGS UK Ltd CORUS SERVICE CENTRE Mill Lane, Walton-on-Naze CO14 8PE Severn Drive, Business Park, 4 Vimy Court, Vimy Road, Leighton Buzzard LU7 1FG Wakefield Rd, Stourton, Leeds LS10 1AY Tel 01255 672855 Fax 01255 850487 Tewksbury, Glos GL20 8TX Tel 01525 375234 Fax 01525 378595 Tel 0113 276 0660 Fax 0113 272 4418 Tel 01684 856600 Fax 01684 856601 ROBINSON CONSTRUCTION (C D E F H 1 Q1) SITE COAT SERVICES LTD CORUS SERVICE CENTRE Wincanton Close, Ascot Drive, Industrial Estate, Derby DE24 8NJ FLI PRODUCTS Unit 11, Old Wharf Road, Grantham, Lincolnshire NG31 7AA The Steelpark, Steelpark Way, Wednesfield, Tel 01332 574711 Fax 01332 861401 Waterwells Drive, Waterwells Business Park, Tel 01476 577473 Fax 01476 577642 Wolverhampton WV11 3BR Gloucester GL2 2AA Tel 01902 484000 Fax 01902 484041 ROWECORD ENGINEERING LTD (A B 0 Q1) Tel 01452 722200 Fax 01452 722244 JACK TIGHE LTD Neptune Works, Uskway, Newport, South Wales NP20 2SS Kirk Sandall Ind. Est., Kirk Sandall, Doncaster DN3 1QR Dudley Iron & Steel Co Ltd Tel 01633 250511 Fax 01633 253219 FABSEC LTD Tel 01302 880360 Fax 01302 880370 Unit 8, Autobase Industrial Estate, Tipton Road, 1st Floor, Unit 3, Calder Close, ROWEN STRUCTURES LTD (A 1) WEDGE GROUP GALVANIZING Tividale, West Midlands B69 3HU Calder Business Park, Wakefield WF4 3BA Tel 0121 601 5000 Fax 0121 601 5001 Fulwood Road (South), Sutton-in-Ashfield, Notts NG17 2JW Tel 0845 094 2530 Fax 0845 094 2533 c/o Worksop Galvanizing Claylands Avenue, Tel 01623 558558 Fax 01623 440404 Worksop, Notts S81 7BQ National Tube Stockholders Ltd HI–SPAN LTD S H STRUCTURES LTD Tel 01909 486384 Fax 01909 482540 Dalton Industrial Estate, Dalton, Thirsk, North Yorkshire YO7 3HE Ayton Rd, Wymondham NR18 0RD Tel 01845 577440 Fax 01845 577165 Moor Lane Trading Estate, Sherburn-in-Elmet, Tel 01953 603081 Fax 01953 607842 SAFETY SYSTEMS North Yorkshire LS25 6ES Newton Steel Stock Ltd Intelligent Engineering (UK) Ltd Combisafe International Ltd Tel 01977 681931 Fax 01977 681930 Unit 1, Zone A, Cheaney Drive, Grange Park, Landshire Lane, Gibbs Marsh Trading Estate, Shire House, West Common, Gerrards Cross, Bucks SL9 7QN Henstridge, Somerset BA8 0TN SIAC BUTLERS STEEL LTD (C D E F H J N 1 Q4) Tel 01753 890575 Fax 01753 899056 Northampton NN4 5FB Lea Road, Portarlington, Co Laois, Republic of Ireland Tel 01604 660600 Fax 01604 662960 Tel 01963 365028 Fax 01963 365034 KINGSPAN METL-CON LTD (Q4) Tel 00 353 57 8623305 Fax 00 353 57 8623207 EASI-EDGE Portway Steel Services Sherburn, Malton, N. Yorkshire YO17 8PQ The Stables, Brook Farm, Westerleigh, Bristol BS37 8QH SIAC TETBURY STEEL LTD (D E F H 4 Q1) Tel 01944 712000 Fax 01944 710555 Ollerton Rd, Tuxford, Newark, Notts NG22 OPQ London Rd, Tetbury, Gloucs GL8 8HH Tel 01777 870901 Fax 01777 872047 Tel 01454 311442 Fax 01454 311445 Tel 01666 502792 Fax 01666 504246 RICHARD LEES STEEL DECKING LTD Rainham Steel Co Ltd Moor Farm Rd West, The Airfield, Ashbourne, STEEL STOCKHOLDERS SELWYN CONSTRUCTION ENGINEERING LTD Kathryn House, Manor Way, Rainham, Essex RM13 8RE Derbyshire DE6 1HD ADVANCED STEEL SERVICES LTD Tel 01708 522311 Fax 01708 559024 Tarron Road, Tarron Industrial Estate, Tel 01335 300999 Fax 01335 300888 South Ribble Industrial Estate, Capitol Way, Moreton, Wirral CH46 4TU South Park Steel Services MSW STRUCTURAL FLOOR SYSTEMS Preston, Lancs PR5 4AJ Tel 0151 678 0236 Fax 0151 678 8959 Tel 01772 259822 Fax 01772 259561 Thomson House, Faraday Street Acton Grove, Long Eaton, Nottingham NG10 1FY Birchwood Park, Warrington WA3 6GA SEVERFIELD-REEVE STRUCTURES LTD (A 0* Q2) Tel 0115 946 2316 Fax 0115 946 2278 Alternative Steel Co Ltd Dalton Airfield Industrial Estate, Dalton, Tel 01925 817000 Fax 01925 818844 METSEC PLC (Q2) Dobson Park Way, Ince, Wigan WN2 2DY Thirsk, North Yorkshire YO7 3JN Tel 01942 610601 Fax 01942 821999 South Park Steel Services Tel 01845 577896 Fax 01845 577411 Broadwell Rd, Oldbury, West Mids B69 4HE South Park Road, South Park Industrial Estate, Tel 0121 601 6000 Fax 0121 601 6181 ASD metal services – EDINBURGH SHIPLEY FABRICATIONS LTD Scunthorpe DN17 2BY STRUCTURAL METAL DECKS LTD 24 South Gyle Crescent, Edinburgh EH12 9EB Tel 01724 810810 Fax 01724 810081 Maddocks Park, Ancaster, Grantham, Lincs NG32 3PL Tel 0131 459 3200 Fax 0131 459 3266 Tel 01400 231115 Fax 01400 231220 The Outlook, Ling Road, Tower Park, Poole, Dorset BH12 4PY Steelstock (Burton on Trent) Ltd Tel 01202 718898 Fax 01202 714980 ASD metal services – BODMIN SNASHALL STEEL FABRICATIONS CO LTD Ryder Close, Cadley Hill Road, Swadlincote, Derbyshire DE11 9EU STRUCTURAL SECTIONS LTD (Q1) Unit 13, Cooksland Ind. Est., Bodmin, Cornwall PL31 2PZ Tel 01283 226161 Fax 01283 550406 Pulham Business Park, Pulham, nr Dorchester, Dorset DT2 7DX Tel 01208 77066 Fax 01208 77416 Tel 01300 345588 Fax 01300 345533 PO Box 92, Downing St, Smethwick, Warley B66 2PA Struthers & Carter Ltd Tel 0121 555 1342 Fax 0121 555 1341 ASD metal services – LONDON SOUTH DURHAM STRUCTURES LTD Erimus Works, Valletta Street, Hedon Road, Hull HU9 5NU STUDWELDERS LTD Thames Wharf, Dock Road, London E16 1AF Tel 01482 795171 Fax 01482 786186 South Church Enterprise Pk, Dovecot Hill, Tel 020 7476 9444 Fax 020 7476 0239 Bishop Auckland, Co. Durham DL14 6XR Millennium Hse, Severn Link Distribution Centre, Newhouse Farm STRUCTURAL FASTENERS Tel 01388 777350 Fax 01388 775225 Ind Est, Chepstow, Monmouthshire NP16 6UN ASD metal services – CARLISLE Tel 01291 626048 Fax 01291 629979 Unit C, Earls Way, Kingsmoor Park Central, ANDREWS FASTENERS LTD STEEL & ROOFING SYSTEMS LTD Latchmore Park, Latchmore Road, Leeds LS12 6DN COMPUTER SOFTWARE Kingstown, Cumbria CA6 4SE Kilkenny Road, Castlecomer, Co Kilkenny, Republic of Ireland Tel 01228 674766 Fax 01228 674197 Tel 0113 246 9992 Fax 0113 243 6463 Tel 00 353 56 444 1855 Fax 00 353 56 444 1860 COMPUTER SERVICES ASD metal services – HULL BAPP GROUP LTD TAYLOR & RUSSELL LTD CONSULTANTS (UK) LTD Unit 15, Darton Business Park, Darton, Yeadon House, New St, Pudsey, Leeds, LS28 8AQ Gibson Lane, Melton, North Ferriby, E. Yorkshire HU14 3HX Stonebridge Mill, Longridge PR3 3AQ Tel 01482 633360 Fax 01482 633370 Barnsley, South Yorkshire S75 5NQ Tel 01772 782295 Fax 01772 785341 Tel 0113 239 3000 Fax 0113 236 0546 Tel 01226 383824 Fax 01226 390004 PSYCLE INTERACTIVE LTD ASD metal services – GRIMSBY THE AA GROUP LTD Estate Road No. 5, South Humberside Industrial Estate, COOPER & TURNER LTD Priorswood Place, East Pimbo, Skelmersdale, Lancs WN8 9QB The Stable House, Whitewell, Whitchurch, Shropshire SY13 3AQ Sheffield Road, Sheffield S9 1RS Tel 01948 780120 Fax 08701 640156 Grimsby DN31 2TX Tel 01695 50123 Fax 01695 50133 Tel 01472 353851 Fax 01472 240028 Tel 0114 256 0057 Fax 0114 244 5529 RAM INTERNATIONAL (EUROPE) LTD The Steel People Ltd ASD metal services – BIDDULPH Lindapter International Unit 3E, Priory Park, Mills Road, Aylesford, Kent ME20 7PP 4 Woodside Place, Glasgow G3 7QF Lindsay House, Brackenbeck Road, Bradford BD7 2NF Tel 0141 353 5168 Fax 0141 353 5112 PO Box 2, Tunstall Road, Biddulph, Stoke-on-Trent, Staffs ST8 6JZ Tel 01622 715900 Fax 01622 715905 Tel 01782 515152 Fax 01782 522240 Tel 01274 521444 Fax 01274 521130 TRADITIONAL STRUCTURES LTD STEEL PROJECTS UK LTD Lupton Court, Prospect Court, Ossett, Wakefield WF5 8AF ASD metal services – DURHAM (D E F H J K N 5 Q1) Drum Road, Drum Industrial Estate, Findel Works, Landywood Lane, Cheslyn Hay, Tel 01924 282008 Fax 01924 282007 CORPORATE MEMBERS Chester-le-Street, Co. Durham DH2 1ST BALFOUR BEATTY Walsall, West Midlands WS6 7AJ TEKLA (UK) LTD Tel 0191 492 2322 Fax 0191 410 0126 Tel 01922 414172 Fax 01922 410211 Tekla House, Cliffe Park Way, Morley, Leeds LS27 0RY POWER NETWORKS LTD ASD metal services – CARDIFF Tel 01332 661491 PADDY WALL & SONS Tel 0113 307 1200 Fax 0113 307 1201 East Moors Road, Cardiff CF1 5SP GRIFFITHS & ARMOUR Waterford Road Business Park,Waterford Road, DESIGN SERVICES Tel 029 2046 0622 Fax 029 2049 0105 New Ross, Co Wexford, Republic of Ireland Tel 0151 236 5656 Tel 00 353 51 420 515 Fax 00 353 51 420 516 ARRO-CAD LTD ASD metal services – STALBRIDGE Bretby Business Park, Ashby Road, HIGHWAYS AGENCY Station Rd, Stalbridge, Dorset DT10 2RW Tel 08457 504030 WARLEY CONSTRUCTION COMPANY LTD (F L 7) Bretby, Burton-on-Trent DE15 0YZ Tel 01963 362646 Fax 01963 363260 Swinborne Road, Burnt Mills Industrial Estate, Tel 01283 558206 Fax 01283 558207 ROGER POPE ASSOCIATES Basildon, Essex SS13 1LD ASD metal services – NORFOLK Tel 01752 263636 Tel 01268 726060 Fax 01268 725285 Development Design Detailing Services Ltd Hamlin Way, Kings Lynn, Norfolk PE30 4LQ 171 Bradshawgate, Bolton, Lancs BL2 1BH Tel 01553 761431 Fax 01553 692394 WALTER WATSON LTD (Q4) Tel 01204 396606 Fax 01204 396634 Greenfield Works, Ballylough Rd, Castlewellan, ASD metal services – EXETER Co Down BT31 9JQ STEEL PRODUCERS Sidmouth Road, Clyst St Mary, Exeter EX5 1AD Tel 028 4377 8711 Fax 028 4377 2050 CORUS CONSTRUCTION & INDUSTRIAL Tel 01395 233366 Fax 01395 233367 WATSON STEEL STRUCTURES LTD (A B 0* Q1) Frodingham House, PO Box 1, ASD metal services – DAVENTRY PO Box 9, Lostock Lane, Bolton BL6 4TB Brigg Road, Scunthorpe DN16 1BP Royal Oak Ind. Est., Daventry, Northants NN11 5QQ Tel 01204 699999 Fax 01204 694543 Tel 01724 404040 Fax 01724 404229 Tel 01327 876021 Fax 01327 87612 PARK ENGINEERING LTD CORUS TUBES ASD metal services – TIVIDALE Brook Lane, Westbury, Wilts BA13 4ES PO Box 101, Weldon Rd, Corby, Northants NN17 SUA Tipton Road, Tividale, Oldbury, West Midlands B69 3HU Tel 01373 825500 Fax 01373 825511 Tel 01536 402121 Tel 0121 520 1231 Fax 0121 520 5664 WESTOK LTD MANUFACTURING EQUIPMENT AUSTIN TRUMANNS STEEL LTD Horbury Junction Ind Est, Horbury Junction, Wakefield WF4 5ER FICEP (UK) LTD Moss Lane, Walkden, Manchester M28 5NH Tel 01924 264121 Fax 01924 280030 10 The Courtyards, Victoria Park, Victoria Road, Leeds LS14 2LB Tel 0161 790 4821 Fax 0161 799 0411 JOHN WICKS & SON LTD Tel 0113 265 3921 Fax 0113 265 3913 Barrett Steel Services Ltd Unit 1, Crabbers Cross, Rattery, South Brent, Devon TQ10 9JZ KALTENBACH LTD Barrett House, Cutler Heights Lane, Tel 01364 72907 Fax 01364 73054 6-8 Brunel Road, Bedford MK41 9TJ Dudley Hill, Bradford BD4 9HU Tel 01274 682281 Fax 01274 651205 WIG ENGINEERING LTD Tel 01234 213201 Fax 01234 351226 Barnfield, Akeman Street, Chesterton, Oxon OX26 1TE PEDDINGHAUS CORPORATION UK LTD BROWN MCFARLANE LTD Tel 01869 320515 Fax 01869 320513 Unit 6, Queensway Link, Stafford Park 17, Telford TF3 3DN Ladywell Works, New Century Street, Hanley, Tel 01952 200377 Fax 01952 292877 Stoke-on-Trent ST1 5QH Tel 01782 289909 Fax 01782 289804

NSC January 2007 41 SCI Members

• Technical Support for • Information Technology Architects • Fire Engineering • Bridge Engineering • Light Steel and Modular • Building Interfaces Construction • Civil Engineering • Offshore Hazard • Codes and Standards Engineering • Composite Construction • Offshore Structural Design The Steel Construction Institute develops and promotes the • Connections • Piling and Foundations effective use of steel in construction. It is an independent, • Construction Practice • Specialist Analysis membership-based organisation. Membership is drawn from • Corrosion Protection • Stainless Steel all sectors of the construction industry; this provides beneficial • Fabrication • Steelwork Design contacts both within the UK and internationally. Its corporate • Health & Safety — best • Sustainability members enjoy access to unique expertise and free practical practice • Vibration advice which contributes to their own efficiency and profitability. They also recieve an initial free copy of most SCI publications, Details of SCI Membership and services are available from: and discounts on subsequent copies and on courses. Its Pat Ripley, Membership Manager, The Steel Construction multi-disciplinary staff of 45 skilled engineers and architects Institute, Silwood Park, Ascot, Berks. is available to provide technical advice to members on steel Telephone: +44 (0) 1344 636509 Fax: +44 (0) 1344 636570 construction in the following areas: Email: [email protected] Website: www.steel-sci.com

All full members of the BCSA are automatically members of the SCI. Their contact details are listed on the BCSA Members pages

Corporate Members Beresford Dunne Consultants Ltd Corus Group plc Gregg & Patterson (Engineers) Ltd Bestech Systems Ltd Coventry Construction Ltd H Young Structures Ltd 3E Consulting Engineers Ltd BHC Limited Coventry University Had-Fab Ltd The AA Group Ltd Billington Structures Ltd Crown Structural Engineering Ltd Halcrow Group Ltd A & J Fabtech Ltd Birmingham City Council CSC (UK) Ltd Halcrow Yolles A B Dailey Son & Clarke Bison Structures Ltd Cundall Hallmason Design Ltd A C Bacon Engineering Ltd Black & Veatch Ltd Curtins Consulting Engineers Hambleton Steel Ltd A Dawber Limited Blyth & Blyth Consulting Custom Metal Fabrications Ltd Building Products Ltd A. Steadman & Son Ltd Bodycote Metallurgical Coatings CWT Partnership Harley Haddow Partnership Aberdeenshire Council Bolton Priestley Harold Newsome Ltd Abraham Consulting Engineers Bone Steel Ltd D A Green & Sons Ltd Harry Marsh (Engineers) Ltd ACE (Leicester) Border Steelwork Structures Ltd D H Structures Ltd Harry Peers Steelwork Ltd AceCad Software Ltd Bourne Steel Ltd D J Hartigan & Associates Ltd Haskoning UK Limited ACL Structures Ltd The Brazier Holt Partnership Ltd Dalton Consultants Hawkes Construction Co Adams Kara Taylor Ltd Bridgetown Developments Ltd Deakin Walton Limited HBG Design Ltd Adey Steel Ltd The British Constructional Steelwork Defence Estates Henrob Limited ADP Consulting Engineers Ltd Association Ltd Denningfield Limited Henry Smith (CE) Ltd Adstone Construction Ltd British Energy Plc Devon County Council Hescott Engineering Company Ltd Air Products PLC British Nuclear Group Devonport Management Ltd Highcliffe Court Design Ltd Aker Kvaerner - E&C Europe British Stainless Steel Association Dewhurst Macfarlane and Partners High-Point Rendel AKSWard Briton Fabricators Ltd DGK Structures Hillcrest Structural Ltd Alan Baxter & Associates Browne Structures Ltd DGT Steel & Cladding Ltd Hills of Shoeburyness Ltd Alan Conisbee & Associates Brunner Mond UK Limited Discain Project Services Ltd HOP Consulting Ltd Alan Dick & Co Ltd BSB Structural Ltd Dorman Long Technology Ltd Horwich Steelworks Ltd Alan Johnston Partnership Building Design Partnership Dougall Baillie Associates HOSDB Alcock Lees Partnership Bunyan Meyer & Partners Ltd Doyle Partnership HSP Consulting Allerton Engineering Ltd Burks Green Architects and Engineers Dundee City Council Hurst Peirce & Malcolm LLP Allott Brothers & Leigh Buro Happold Hyder Consulting (UK) Ltd Allslade Plc Burroughs Stewart Associates Eastwood & Partners AMEC Design and Management Butterley Ltd Edmund Nuttall Ltd Imperial College London AMECNNC BWB Consulting Ltd Elland Steel Structures Ltd Integer Software Limited AMP Consultants LLP Inverclyde Council Andrew Dust Structural Engineers C.S.C. Engineers Ltd Emmett Fabrications Ltd Andrew Howard & Partners CADS (Computer & Design Services Ltd) Engineered Offsite Limited J Robertson & Co Ltd Andrew Waring Associates Cairnhill Structures Ltd Engineering Solutions Partnership Jacobs Babtie The Angle Ring Company Ltd Caledonian Building Systems Evadx Ltd James Bros (Hamworthy) Ltd Apex Steel Structures Ltd Cameron Taylor Evans & Langford LLP James Killelea & Co Ltd Arromax Structures Ltd CampbellReith Expedition Engineering Limited James Lupton Consultants Arrow Structural Framing Sales Ltd Capita Gwent Consultancy Ltd Jenkins & Potter Arup Capita Symonds F J Booth & Partners Ltd John Reid & Sons (Strucsteel) Ltd ASA Steel Structures Ltd Cardiff County Council F J Samuely & Partners Ltd John Wicks & Son Ltd Asme Engineering Ltd Cardiff University Faber Maunsell Jordan Pritchard Gorman Associated Structural Design Carl Bro Fabsec Limited Joy Steel Structures (London) Ltd Carnaby Steel Structures* Fairfield-Mabey Ltd Atkins MSL Engineering Ltd Carter Design Group Fisher Engineering Ltd Kellogg Brown & Root Ltd Atlas Ward Structures Ltd Cass Hayward LLP Flint & Neill Partnership Kenneth Brown & Partners Atlasco Constructional Engineers Ltd Caunton Engineering Ltd Fluid Structural Engineers Kier Engineering Services AWE CB&I UK Ltd Fluor Ltd Kingspan Metl-Con Limited AWF Steel Ltd CEL International Ltd Foggo Associates Ltd Kingston University Aylesbury Vale District Council Cheshire County Council Fothergill Knapp Hicks & Partners Ltd Ayrshire Metal Products Plc Chieftain Contracts Ltd Frank H Dale Ltd CIRIA The Laser Cutting Company Ltd B D Structures Limited City University Galvanizers Association Leach Structural Steelwork Ltd B W Industries Ltd Civil & Structural Computer Services Ltd Gardenwood Ltd Leighs Paints BAA Plc Clarke Bond Group Limited Gary Gabriel Associates Leonard Cooper Ltd Balfour Beatty Rail Projects Ltd Clarke Nicholls & Marcel George Mathieson Associates Les Gooding Design Associates Ballykine Structural Engineers Ltd Clarkslegal LLP Gibbs Engineering Ltd Lindab Building Systems Banro Sections Ltd Clegg Associates & Partners Ltd Lindapter International Barnshaw Section Benders Ltd Cleveland Bridge UK Limited Glasgow Caledonian University Liverpool John Moores University Barrett Steel Buildings Ltd Collis Engineering Ltd Glentworth Fabrications Ltd London Borough of Hillingdon Barretts of Aspley Ltd Compass Engineering Ltd GME Structures Ltd Lowe Engineering (Midland) Ltd Baxter Glaysher Consulting Complete Design Partnership Ltd Goodwin Steel Castings Ltd BDS Steel Detailers Conder Structures Ltd Gorge Fabrications Ltd M & S Engineering Ltd Bechtel Ltd Conwy County Borough Council Graham Wood Structural Ltd M D Fabrications Ltd Benaim Cordell Group Ltd Grays Engineering (Contracts) Ltd M Hasson & Sons Ltd Bentley Systems Cornwall County Council Green & Tempest Mace Ltd

42 NSC January 2007 SCI Members

Maldon Marine Ltd Snashall Steel Fabrications Belgium Steel & Roofing Systems Ltd* Manchester City Council South Durham Structures Ltd Bocad Service International S A T J O’Connor & Associates Martin Healer Development Services Ltd South Lincs Consulting Ltd International Iron & Steel Institute (IISI) TOBIN Consulting Engineers Martin Stockley Associates SSI Group of Companies Staalinfocentrum - Centre Information Walsh Draughting Services Ltd Marton Fabrications Ltd The Steel People Ltd Acier Maslen Brennan Henshaw Stewart & Harris Italy Mason Navarro Partnership Stirling Maynard & Partners Brazil Politecnico Di Milano Mech Tool Engineering Ltd Structural Design Associates Brazilian Centre of Steel Construction Universita Degli Studi Di Trento Melliss LLP Structural Design Partnership (CBCA) Metals Industry Skills & Performance Structural Metal Decks Ltd CODEME Engenharia S.A. Kenya Metek Building Systems Structural Sections Ltd Gerdau Acominas S.A. David Engineering Ltd Metronet Rail SSL Ltd Surrey County Council Universidade Federal de Ouro Preto Steel Structures Ltd Metsec Plc Survey Design Associates Ltd Universidade de Sao Paulo Michael Barclay Partnership USIMINAS Korea Midland Steel Structures Ltd T A Kirkpatrick & Co Ltd Hyundai Steel Company Midland Structural Services Taylor & Russell Ltd Canada Korea University Mifflin Construction Ltd Teague & Sally Limited Canadian Institute of Steel Construction Mike Curnow Techniker Ltd Principality of Liechtenstein Mitchell McFarlane & Partners Tekla (UK) Ltd Chile HILTI AG MJM Consulting Engineers Ltd Tension Control Bolts Ltd Construcciones Y Montajes S.A MLM Maddocks Lusher & Matthews Terence McCormack Ltd (COYMSA) Lithuania Molabolt Terrapin Ltd Vilnius Gediminas Technical University Morgan Est Terrell International Croatia Mott MacDonald Thomas Morgan & Associates Institut Gradevinarstva Hrvatske d.d. Malaysia MSW (UK) Ltd Thomasons LLP Corus Asia Ltd Tony Gee & Partners LLP Egypt Malaysian Structural Steel Association Napier University TPS Consult Ltd Project Management Systems Universiti Teknologi Malaysia Newbridge Engineering Ltd Traditional Structures Ltd Newton Fabrications Ltd Finland Malta Nolan Associates University of Aberdeen Rautaruukki Oyj TBA Periti Norder Design Associates Limited University of Birmingham Seinajoki Polytechnic Nottingham Trent University University of Bolton The Netherlands NPS North East Limited University of Bristol France Bouwen met Staal NRM Bobrowski University of Dundee CTICM Delft University of Technology Nusteel Structures Ltd University of East London Terrell International NW Structural Consultants Ltd University of Edinburgh New Zealand University of Greenwich Germany Heavy Engineering Research Association On Site Services (Gravesend) Ltd University of Leeds Bauen mit Stahl e.V. Overdale Construction Services Ltd University of Liverpool Stahl + Verbundbau gmbh Norway Owen Williams Consultants The University of Manchester Tee Consult Holding AS Oxford Brookes University University of Nottingham Greece University of Paisley Computer Control Systems SA Pakistan Pace Structures Ltd University of Plymouth Democritus University of Thrace Metecno Pakistan (Pvt) Ltd Parsons Brinckerhoff Ltd University of Portsmouth K.Liaromatis SA Paul Reading & Partners University of Salford Maraveas & Associates SA Portugal Consultants Ltd University of Sheffield Metallostegastiki SA Universidade de Aveiro Pencro Structural Engineering Ltd University of Southampton Technical Chamber of Greece (TEE) Universidade de Coimbra – Polo II PEP Civil & Structures Ltd University of Surrey Peter Brett Associates University of the West of England Hong Kong Qatar Peter Taylor & Partners Ltd University of Wales Swansea Metalex Trading & Contracting Co. W.L.L University of Warwick Corus Asia Ltd Pinnacle Consulting Engineers Ltd URS Corporation Ltd The Hong Kong Polytechnic University Romania Plandescil Ltd WSP Asia Altiscad SRL PMS Fabrications Ltd Vertex Systems Portakabin Ltd India Republic of Singapore Portal Ltd W A & Partners Bechtel Overseas Corporation Corus South East Asia Pte Ltd Powerwall Systems Limited W F Brown Associates Ltd Institute for Steel Development & Growth Jurong Engineering Ltd Price & Myers Consulting Engineers Llp W S Britland & Co Ltd LSW Consulting Engineers Pyper McLarnon Partnership Wakefield MDC Building Control Ireland Ngee Ann Polytechnic Walsh Associates Andrew Mannion Structural Singapore Structural Steel Society QMEC Ltd Walter Watson Ltd Engineers Ltd* Queen’s University Belfast Warley Construction Co Ltd Barrett Mahony Consulting Engineers Ltd South Africa Waterman Structures Ltd Barry Kelleher & Associates Southern African Institute of Steel R G Parkins & Partners Ltd Watson Steel Structures Ltd C S Pringle Consulting Engineers Construction RAM International (Europe) Ltd WCJ Engineers Corus Ireland Tricom Structures Ramage Young Limited Wessex Structural Services Ltd Coyle Kennedy Ltd Remnant Engineering Ltd Westbury Park Engineering Ltd DBFL Consulting Engineers Ltd* Spain Renfrewshire Council Westok Ltd Denis O’Sullivan & Associates In Hoc Signo Vinces, S.L. Richard Lees Steel Decking Ltd Whitbybird Downes Associates ITEA Richard Wood Engineering Ltd White Young Green Consulting Ltd Duggan Steel* University of Navarra Rigby & Partners WIG Engineering Ltd ESB International Ltd Rippin Ltd William Haley Engineering Ltd Frank Fox & Associates Sweden RLT Engineering Consultants Ltd* William Hare Ltd Fox Bros Engineering Ltd* Luleå University of Technology RMJM Scotland Ltd William J Marshall & Partners Fusion Building Solutions Swedish Institute of Steel Construction Robert Bird & Partners The Willocks Practice Goggin Buckley Structural Steel* Robert Tucker Associates The Wood Boyle Partnership Hanley Pepper Consulting Engineers Turkey Roberts Engineering Wright Associates Hayes Higgins Partnership CIMTAS Celik Imalat Montaj Ve Robinson Construction WSP Group J B Barry & Partners Limited Tesisat A.S. Robinson Consulting Limited Jacobs Engineering UMO Architecture Engineering and Robobat UK Ltd Joda Engineering Consultants Consulting Ltd Co Roger Bullivant Ltd Kilgallen & Partners Consulting Rowecord Engineering Ltd Organisations Engineers Ltd United Arab Emirates Rowen Structures Ltd with Member Service Leonard Engineering (Ballybay) Ltd* Corus Middle East Royal School of Military Engineering Agreements with the SCI McCabe Delaney GINCO Steel L.L.C. RPS Consulting Engineers The McKenna Pearce Practice Techno Steel Construction Co RSL (South West) Ltd Construction Industry Directorate Michael Punch & Partners WSP Middle East Ltd Health & Safety Executive (HSE) Milltown Engineering Ltd* S H Structures Ltd Highways Agency National University of Ireland, Galway USA Scott White & Hookins Institution of Structural Engineers Nestor Kelly American Institute of Steel Scott Wilson Ltd Newell Roofing Products Construction Inc Selwyn Construction Engineering Ltd Nordman Profile Ltd American Iron & Steel Institute (AISI) Severfield-Reeve Structures Ltd Norris Bros Ltd* Corus America Inc Sheffield City Council International O’Connor Sutton Cronin Epic Metals Corporation Shell UK Exploration & Production Corporate Members Oliver Russell & Associates Ltd Steel Recycling Institute Sherwood & Casson Ltd Paddy Wall & Sons* Shipley Fabrications Ltd Australia Pat O’Gorman & Associates Sir Robert McAlpine Design Group Australian Steel Institute Project Management Ltd Skanska Technology BlueScope Steel Research RPS Consulting Engineers Ltd Skidmore Owings & Merrill Inc. SIAC Butlers Steel Ltd SKM anthony hunts Stanta Limited *New corporate members since last long

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44 NSC January 2007