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Steel Awards 2011 – All the Winners

From a unique rooflight in Sandton to a railway station in Durban, from a record-breaking steel headgear in Gauteng and a brilliant Cape Town pedestrian bridge to a King’s College in the North West Province, from an Athletes Village in Maputo to a futuristic skywalk in Johannesburg, this year’s Steel Awards reflected the outstanding quality of the steel construction industry in all its diversity. “We congratulate the winners, but emphasise the exceptional quality of all the entries, which augur so well for the future of our industry,” said Dr Hennie de Clercq, executive director of the Southern African Institute of Steel (SAISC).

The Steel Awards, held on the 15th September 2011 at Emperor’s Palace, Kempton Park, Suncoast Casino, Durban and the One&Only Hotel, Cape Town was hosted by the Southern African Institute of Steel Construction (SAISC) with the Aveng Group the main sponsor.

The overall winner of Steel Awards 2011 was the Protea Court Rooflight in Sandton. According to the judges, while it has been a number of years since the Steel Awards overall winner was an architectural-type project, the unusual excellence of the Protea Court Rooflight left them in no doubt about its worthiness of the number one spot.

“In assessing the excellence in the use of steelwork architecturally, structurally and technically there is no doubt that this project can proudly take its place among the many brilliant winners of past Steel Awards,” the judges said.

In a first for South Africa, the Protea Court Rooflight joins illustrious projects such as the water cube in Beijing and the Eden project in Cornwall in using EFTE plastic bag-like roof cladding, which is kept inflated with compressed air.

The judges noted that from a ‘plan’ perspective the structure looks quite simplistic. “After all, how difficult could it be to construct spokes of two wheels each of different diameter, one within the other but having different origins?” However, add a third – vertical - dimension, slope the base of the outer support circle, and curve each of the spokes in elevation to achieve a fountain-like look (or as some have described it a Protea plant look) and the structure becomes a significant challenge.

“Even the secondary tubular members between the rafters are curved, making every single piece of steel its own masterpiece,” the judges say.

The detailer said that the challenge of doing a layout on a structure like this is the fact that you are working in free three-dimensional spaces the whole time.

The works director added: “From the minute we saw the drawings we realized that we were in for a significant challenge, not only for the workshop but for each and every person involved in the project.”

The erectors were equally in awe: “Essentially the entire roof structure is floating in mid air supported on twelve perimeter columns on an offset internal core. The challenge was enormous. First and foremost there was the need for absolute accuracy with the 1,468 cladding support brackets. This was critical but the other challenges were numerous: the 11° slope; the cumbersome nature of the 27m long girders, the temporary instability of the structure until completely erected and tied permanently to  its concrete support walls; the very tight timeline; and the fact that most of steelwork was erected over the Christmas break.”

The judges concluded saying that this project demonstrates the excellence that can be achieved with hard work, an understanding of modern techniques and superb intra-team cooperation.  “It is a display of excellence of the highest order in the use of structural steel and the skills that went into making this project a masterpiece. It is truly deserving of the overall winner award at Steel Awards 2011.”

The Aveng Group was the main sponsor for Steel Awards 2011 along with an array of leading steel and related companies. The full list of sponsors was: The Aveng Group (Main Sponsor); Cadex SA (Table Décor Sponsor); Association of Steel Tube and Pipe Manufacturers of South Africa (Tubular Award Sponsor); Stewarts and Lloyds (Light Steel Frame Award Sponsor); Macsteel (Photo Competition Sponsor) and ArcelorMittal SA, B&T Steel, Cosira Group South Africa, First Cut/ Kaltenbach, Group Five, NJR Steel, Tubular Holdings and Vital Engineering (Partner Sponsors).

For inromation and pictures on all the winners download the document below


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