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© Simon Kennedy STEEL SPOTLIGHT: Structural Steel Design Awards 2018 Produced by the BCSA and Steel for Life in association with Construction News STEEL SPOTLIGHT: Structural Steel Design Awards 2018 City headquarters meets exacting demands Bloomberg London is a finely INTRODUCTION crafted, highly sustainable This year marks the 50th anniversary of the building with open-plan Structural Steel Design Awards (SSDA), floors and dramatic which are jointly sponsored by the British circulation routes Constructional Steelwork Association (BCSA) and Trimble Solutions (UK) Ltd. The Awards celebrate UK excellence in steel fabrication, design and construction. RUBY KITCHING This year’s recipients reflect an industry that In a world where so much of what we do is focused on creating efficient, sustainable takes place in front of a screen, it’s refreshing and cost-effective structures that look to see media and software firm Bloomberg exceptional and function brilliantly. consider staff interaction as one of the main Always innovative, these project’s design drivers for its new European HQ. teams use technology to refine and push Located in the City of London, the boundaries. Key to the success of many of building has also been awarded a BREEAM the 22 structures showcased here has been ‘Outstanding’ environmental rating, said to be the use of BIM and collaborative working the highest of any major office development from the earliest opportunity. in the UK. The 10-storey building is made up of SixAwards, eight Commendations and a north and south block connected by high- eight Merits were presented on 3 October at a level walkways. At street level, a new publicly ceremony held in Whitehall, London, where it accessible arcade separates them. was also announced that Jaguar Land Rover “At the heart of the building is open space, Engineering Manufacturing Centre was the which helps people and information move 2018 SSDA Project of the Year. more seamlessly,” says Bloomberg chief The SSDA’s cross-industry judging panel executive officer Michael Bloomberg. includes: chairman Chris Nash (Royal Creating these open floorplates is a composite Institute of British Architects, RIBA), AWARD Bloomberg London steel structure, which integrates with Richard Barrett (steelwork contracting services to maximise ceiling heights. industry), Paul Hulme (Institution of Civil Architect Foster + Partners Engineers), Sarah Pellereau (Institution Reinforced concrete stair and lift cores are Structural Engineer AKT II unconventionally located on the building’s of Structural Engineers, IStructE), perimeter, instead of occupying a central Professor Roger Plank (IStructE), Julia Steelwork Contractor William Hare location, to enable clear views across floors. Ratcliffe (IStructE), Bill Taylor (RIBA), and Main Contractor Sir Robert McAlpine And, rather than adopting a rectangular Oliver Tyler (RIBA). Client Bloomberg structural grid, the building adopts a repeating equilateral triangle of side length 13.85 m to maximise every inch of the angular site. onsite programme,” says William Hare’s opening in the middle for the ramp, which The project has required the team to think London operations director Curzon Graham. changes position from floor to floor.” outside the box and, on one occasion, to think Balancing the need for order and repetition The 230 m-long ramp is the building’s outside the fish tank. “As with any project of on the main office floors is a twisting feature centerpiece, he continues. “It is only fixed to this scale and ambition, the brief was ramp in the north building. the building at two points to give it the constantly evolving,” says Sir Robert The ramp playfully connects levels two to appearance of floating. McAlpine building services engineer Chris eight in a form that resembles the phases of a “The extremely complex hypotrochoid Atkins. “An example is the inclusion of a flower drawn using a ‘Spirograph’ drawing shape meant we didn’t know exactly how the 50-tonne fish tank on the sixth floor, which instrument, or a hypotrochoid, to give the structure was going to react once temporary had to be installed after ceiling void closures shape its scientific name. propping was removed.” had been completed on levels five and six.” This 1.5 m-wide steel ramp, spanning a Temporary supports during its He explains that the team’s joint effort height of 30 m, passes through elliptical construction also provided access to install enabled a solution to develop that did not openings in the floorplate, which are rotated the ramp’s bronze cladding panels. Close impact the programme. This involved by an angle of 120 degrees between floors. co-ordination with the panel supplier strengthening steel at level six and finding The ramp provides another opportunity for ensured that, after de-propping and when space in an existing storeroom for extra staff to mingle. the ramp steelwork had settled, the space plant and services. “Having open floor plans throughout was a between adjacent panels compressed to “The use of steel within the design allowed challenge,” says Sir Robert McAlpine project create a seamless surface. for close co-ordination with other trades […] manager Allan Cameron. “Every floorplate Located on a city centre site and which greatly de-risked and reduced the has a different design due to the large surrounded by streets on all sides, design 32 | 16 November 2018 Produced by the BCSA and Steel for Life in association with Construction News City headquarters meets exacting demands COMMENDATION Two St Peter’s Square, Manchester Architect SimpsonHaugh Structural Engineer BuroHappold and construction of this building was Steelwork Contractor William Hare complicated by access issues and the impact Main Contractor Laing O’Rourke it could have on nearby structures. “Due to the close proximity of tube lines, a Client Mosley Street Ventures Ltd © Daniel Hopkinson Victorian sewer running through the centre of the site and adjacent historic buildings, the This 12-storey double-basement office associate partner Simon Critchley. structural steel frame is a complex mix of building in Manchester replaces four buildings The façade is made up of 6 m-wide by 4 m-tall transfer beams – some pieces weighing that used to occupy the site. Its highly panels. Analysis of the steel frame’s behaviour 60 tonnes,” says Sir Robert McAlpine project decorative precast concrete façade enables it at different stages of the build determined the commercial director Michael O’Donnell. to sit comfortably among the Grade I-listed extent of pre-setting required so that it would “Large trusses also support a section of the Town Hall and Grade II-listed Central Library settle in a controlled way as the panels were building which is hung from the roof.” that occupy St Peter’s Square. added, eventually resting at its final position The building’s environmental wins come Composite steel beams spanning 18 m when the building was complete. in the form of reusing foundations (with create column-free floors, while double-height Mr Critchley adds: “Point loads at structural additional piles only introduced in the south- columns spaced 12 m apart at ground level give columns, combined with pre-cambering of west corner), water recycling and efficiency it a civic presence. “As a speculative office, steelwork to accommodate the loading of measures, and low-energy features. designed and delivered during difficult market the heavy façade panels and eventual This all adds up to 73 per cent less water conditions, it was important to offer a flexible cantilevering of the main office, required consumption and 35 per cent less energy use open-plan floorplate,” says SimpsonHaugh envelope and frame to work together.” compared with a typical office building. 16 November 2018 | 33 STEEL SPOTLIGHT: Structural Steel Design Awards 2018 More than just an engine factory Jaguar Land Rover’s new West Midlands facility has been designed and built with © Simon Kennedy the same precision and care that goes into manufacturing its world-class car engines RUBY KITCHING structural grid of the building. The machine hall uses a structural grid of 30 m x 15 m Functionality, reliability and efficiency are while the assembly hall – where, according to some of the most important aspects of car Mr Macintosh, “you can eat your dinner off engine design, but if this mindset alone the floor” – uses a 30 m x 30 m grid. were applied to the factories manufacturing Primary trusses spanning 30 m are them, the result would be soulless buildings arranged to create openings in the roof for and the people working in them made to feel northlights and column-free areas below. like mere cogs. They also support primary services. “These Jaguar Land Rover’s new facility in lightweight systems allow easy maintenance Wolverhampton is functional, reliable and and adaption in this complex that never efficient, but is also a place that connects sleeps,” he adds. people with other people and processes. It is Jaguar Land Rover’s 3D production model not even described as a factory but an ‘engine was integrated with Arup’s BIM model to manufacturing centre’ to emphasise that it create a single file for the entire facility, does more than just house machinery. enabling effective co-ordination. When the AWARD and PROJECT OF THE YEAR The centre has been designed to encourage project was on site, BIM helped Arup respond Jaguar Land Rover human interaction and for state-of-the-art quickly to the client’s decision to add an extra Engine Manufacturing Centre machines to do their job, all while natural 30 m bay to the building. daylight floods in. “Our automated workflow enabled Architect Arup It breaks down the physical and design checks to be carried out quickly Structural Engineer Arup psychological barriers between shop floor and for models to be updated to re-use Steelwork Contractor Severfield and administration through its open already-manufactured steel in a different structure and large expanses of glazing.