Architect and Builder Magazine South Africa Dec 2017 / Jan 2018 - Page 96

MITEK LIGHT STEEL FRAME BUILDING CATEGORY - JOINT WINNER GLA School Hall All trusses for the Global Leadership Academy (GLA) school hall roof were spanned parallel to the traditional supports, essentially producing enlarged rafter/purlin type trusses. Ultra-Span girders were created at the ends to support short span trusses to comply with the required minimum ceiling height. This idea was also adopted in the middle section of the roof to act as stability braces for the window panels. Window panels were made with MiTek’s wall framing product to allow for very specific window sizes, and to provide flat surfaces for fixing of such windows. These window panels are manufactured in several parts to ease installation. In typical large span Ultra-Span style, the 19m trusses were preassembled in braced pairs and then lifted into their final position on the roof, to ensure fast erection of the roof structure skeleton and enabling other installation works to continue on a stable platform. Satisfied customer, Stefan Kleyn from the Global Leadership Academy, says, “With the design and construction of the new school buildings for Global Leadership Academy in Jeffrey’s Bay, we were confronted with the challenge of establishing a world class education facility on a shoe-string budget. This required our architect, Jacobus Scott, to come up with innovative solutions. One of these problems was that we wanted a multi-use gathering area, which required an ultra-long span roof design. There was just no other cost-effective option but to make use of the MiTek Ultra-Span system. Brian and 96 the rest of the MiTek team designed and installed a cost- effective solution that not only looks impressive, but also effectively solved many design and engineering problems that we just couldn’t have overcome with a traditional roofing system. We applaud the complete MiTek team and especially Brian for guiding us through this process. Comments from John Barnard, Director of SASFA: “What struck me about this project was how closely the final structure resembles a sketch drawing used originally to promote the solution! This is not the lowest mass per area roof structure, but some clever design using MiTek’s Ultraspan, captured benefits made possible by high strength low mass steel trusses, and realised the arcitect’s design. From natural ventilation to optimisation of natural light, photo voltaic cells and rainwater harvesting, to the recyclability of materials used - LSF made this green structure possible. Hence it was selected to be a joint winner in the LSF Category of Steel Awards 2017.” Client: Global Leadership Academy Architect/Project Managers: Pure Design Architects Structural Engineer – site: Andre Le Roux Engineering Engineer – roof: MiTek Quantity Surveyor: Sam van Tonder Steelwork Contractor and erector: Build IT LSF design and detailing: MiTek Steel Awards