Vsol®, the New Retainer Waldstadion Lift Three Girders in Santiago DUCTAL®5 Vsol® 6 FACTS&TRENDS 4 Ductal®: Less Weight, More Impact 4
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NEWS THE VSL NEWS MAGAZINE • ISSUE TWO-2004 VSoL®, the new retainer Waldstadion lift Three girders in Santiago DUCTAL®5 VSoL® 6 FACTS&TRENDS 4 Ductal®: Less weight, more impact 4 FRP boosts strength of swiss bridge 5 ts COVER STORY 6 VSoL®: The new retainer A practical and cost-effective construction h technique for retaining wall applications. Green wall project - Autovía Espiñaredo, Fast track temporary road 7 Spain. 18m high, 4,800m2. Heavy load support for mining 8 g 47 walls at Westlink M7 project, Sydney 9 Middle East goes polymeric 10 Road widening at Castle Peak, HK 10 The stone look at Bois Roger, France 11 Ferns and flowers for Sunshine Coast 11 SITE INSIGHTS 12 hli New Zealand: Unconventional slab jacking 14 India: Stay clable system launch in Goa 15 Hong Kong: Tight radius on road T3 16 g Argentina: Anchoring the Andes 18 SPECIAL REPORT 20 WALDSTADION 20 The biggest convertible in the world hi One of the world’s most spectacular roof structures was lifted into place over Frankfurt’s Waldstadion sports arena. SANTIAGO TECHNICAL 22 METRO 20 Liz Bridge: 18 stays in a single week 23 A record installation. TECH SHOW 24 STAYS 23 Three girders and a first in Santiago A high profile project showing Chile’s first use of launching girders to erect pre-cast segments. NEWS, magazine published by VSL International Ltd. • Bern, Switzerland and VSL • Challenger - Saint-Quentin-en-Yvelines, France. Director of Publication: Jean- Philippe Trin • [email protected] Editor in chief: Jane Rousseau • [email protected] Co-ordinators: Carlos Such, Doris Tong. Distribution: Sandra Puel • [email protected] Design: Red Line Photos: A. Derek, J. Rousseau, others. Copyright: VSL • ISSUE TWO • 2004 EDITORIAL Offer continuous improvement As 2004 has come to an end, VSL is continuing to successfully expand its geographical presence and introduce innovative, high-performance products. Our position in India has grown stronger with the signing of contracts for over 116 projects in recent months. We have also diversified our activities with VSoL® projects and our first cable-stayed bridge there, which is being built in Goa. In China, we have moved into a new plant, a more modern and efficient facility that will be able to produce all VSL post- tensioning components to international standards. In Australia, we are testing new panels made of Ductal®, whose ability to withstand high-intensity explosions will make them an 3 excellent solution for protecting sensitive sites. In Germany, our Heavy Lifting teams that are working on the new Waldstadium have put in place the roof support, whose size, weight and shape make it a very imposing structure. And in Chile, we completed in eight months the precasting and installation of segments for a viaduct for a 7,200-m section of Santiago's new light rail. All these projects demonstrate our teams' commitment to developing innovative solutions for our clients and to delivering efficient solutions in terms of planning and cost to the complex technical challenges they bring to us. VSL will keep on working through its network of local subsidiaries to offer clients the most up-to-date construction techniques and the benefits of a continuous improvement policy for VSL products. Jean-Philippe Trin FACTS&TRENDS Another project is just starting production at the Papatoete Railway Station : New footbridges providing a ramp access for pedestrians to cross the railway tracks are part of the station redevelopment. The weight reduction is very important as New Zealand is subject to high earthquake loading, and the lighter superstructure has enabled cost savings to be made in the substructure. In addition a research programme has been undertaken Blast resistance tests into the blast resistance of Ductal® panels. The results of the tests ® Ductal in Australia demonstrated the suitability of Ductal® for blast resistance and confirmed the design methods. Less weight, more impact The unique characteristics of Ductal® including exceptionally high > Production of Ductal® in the attemperating weir at Eraring energy absorption capacity and Australia commenced in January Power Station, NSW to contain salt- resistance to fragmentation, make 2003, after installation of the water spray with a design life of at it an ideal material for panels and mixing plant. The materials used least 100 years; M7 Freeway, components that may be affected are Australian except for the steel Sydney, some 25mm-thick Ductal® by explosives, impact or shock 4 fibres and the silica fume. panels to be used as permanent loads. VSL Australia is now carrying Precast Ductal® products have been formwork slabs on a number of out concept studies and preliminary supplied to three projects to date: bridges with conventional precast designs of protection panels for Shepherds Creek, the first bridge in pretensioned beams, to form the embassies in two high terrorism the world to be constructed using end diaphragm where access for risk countries. Ductal® for normal highway traffic; removal of formwork was difficult. ■ Contact: [email protected] Elongation calculations New approach to tendon modelling > Calculating the elongation of and structures. CE2000 works as a Elongation tendon tendons is a common task in VSL. geometric pre-processor for the The traditional approach was to use definition of tendon geometry Excel tables, but these are difficult to without defining a cross section. It adjust for complicated calculations also acts as a calculation program and stressing procedures. VSL for all possible stressing sequences. recognised the need for a new, native It supports the construction of Windows application to calculate tendon axes in both plan view and tendon elongations and stressing elevation and generates three- diagrams. CE2000 has been dimensional information for tendons developed as the standard software along the axes. Powerful interactive solution, giving users a powerful tool functions allow the definition of for calculating the tendon elongation general tendon points with few in all kinds of structures. It achieves parameters. The software then high accuracy in describing the creates a structural database and tendon geometry, even though the makes this information available for input is easy and the calculations are analysis in CE2000. ■ Contact: independent of the cross sections [email protected] NEWS N°2•2004 Slabs Stresshead Bontec-1 proves popular system in Spain FRP boosts promoting in Madrid. Hines- strength of Montisa required clear spans of 16.4m by 24m (from spans originally 8.1m x 8.1m) to adapt the Swiss bridge office building to suit future uses. > VSL has recently upgraded a VSL worked closely with Rafael de Swiss bridge using post-tensioned la Hoz (architect), Pondio plates made from FRP (fibre reinforced (structural designer) and Sacyr polymers/plastics). The 65-year-old (main contractor) to provide the bridge in Biel was originally designed ideal structural solution. This for a load of 20t but now has to carry involved the use of a two-way post- loads three times as large. Extensive tensioned ribbed slab system for reinforcement measures were the 23,500m2 office area and a two- therefore required. The StressHead > VSL Spain has won contracts for way PT flat slab system for the post-tensioning system proved to be over 100,000m2 of PT slab during 10,000m2 underground parking the optimal solution to enable the the first nine months of the year. area. The contract with Sacyr was structure to meet today's demands. VSL Spain was chosen early in the later extended to provide One system can take a maximum year to implement a structural engineering and materials for the force of over 300kN, with a maximum 5 solution for a 33,500m2 office stainless steel façade system. ■ prestress force of 220kN. ■ development that Hines-Montisa is Contact: [email protected] Contact: [email protected] Quality policy ISO 9001: 2000 certification for VSL India > VSL celebrated completion of Jammu & its fifth successful year in India on Kashmir 11th November 2004 and achieved Himachal Pradesh another feather in its cap the same Punjab Ground anchors / Bridges / Buildings - Delhi Uttaranchal week, by obtaining ISO9001:2000 Nuclear tank - Rapp Haryana certification from LRQA. Delhi Arunachal Pradesh Certification encompasses the Rajasthan Uttar Sikkim marketing, design and execution Pradesh Assam Nagaland LNG tank - Dahej/Hazira Bihar Maghalaya of post-tensioning systems and Manipur LNG tank - Dabhol Rock Anchor - retained earth walls, together with Jharkhand Purulia Gujarat Madhya Tripura marketing and execution of heavy Pradesh West Mizoram Bengal Chattisgarth lifting, ground anchors, stay cable Buildings / Bridges / Heavy Lifting - Mumbai Orissa bridges and bridges. The contract Maharashtra value of VSL India's bookings for Buildings - Hyderabad region Buildings - Pune region 2004 had reached US$18 million by Andhra Buildings / RE Wall - Bangalore Pradesh October, across 116 jobs. There are Cable stay - Goa 200 workforce and staff members, plus 600 labour. Highlights of VSL Karnataka Corporate offices / India's contracts include the Buildings - Chennai rd RE Wall - Palghad recently-completed 3 LNG Tamil Kerala Nadu Terminal at Hazira, a first building job in Colombo, Sri Lanka and its first cable-stayed bridge, at Goa. ■ Contact: [email protected] NEWS N°2•2004 COVER STORY RETAINED EARTH WALL SYSTEM VSOL®: the new he VSoL® system has proved its merit combined with compacted backfill these components form a throughout the world as a practical and reinforced internally stable soil mass suitable for approach ramps, T cost effective construction technique for bridge abutments and general retaining wall construction. 6 a wide variety of retaining wall applications. In addition to being a highly cost This area of activity is showing significant effective solution, in many markets VSoL® walls have an attractive growth within VSL. appearance as well as providing a highly cost-effective solution. Walls that incorporate a number of different patterns are becoming increasingly common in some markets and VSoL® walls are being chosen as a reliable way to create a high quality pre-cast finish.