African Design Magazine ADM #34 October 2017 | Page 18

ASTPM TUBULAR CATEGORY WINNER AND ARCHITECTURAL CATEGORY WINNER CTICC, winner in the Commercial award he project entailed the fabrication and erection of a curved plate fabricated main entrance arch with the suspended tubular round shaped Globe Bar. Steel was chosen because of the fact that complex shaped curve could not be achieved in concrete in the short space of time. The casino arch structure was fabricated in the biggest possible elements, which left the least site welded connections for erection on site. Erection of the arch legs was done using a 220 ton crane on a suspended fully propped slab, while lifts were taking place. The main arch is a composite steel and concrete structure with re-bar fi ed during the fabrication process. Once erected and site welded, concrete was pumped inside the plate arch using specifically designed concrete slurry. The Globe Bar was fully constructed offsite to get the geometry 100% correct. The structure was then divided into segments and welded in biggest transportable units. Segments were then bolted and site welded. A sacrificial inner structure of I-beams was constructed and the external frame of the Globe was pre-assembled on the inner frame. This ensured geometrical correctness and the accurate fit of glass panels. CONTINUE READING HERE 18 africandesignmagazine.com Client/ Developer Ÿ Sun International Architect Ÿ LYT Architects Structural Engineer Ÿ WSP Quantity Surveyor Ÿ MLC Main Contractor Ÿ WBHO Steelwork Contractor/ Nominator Ÿ Cadcon Structural Steel Detailer Ÿ DN Design Ÿ Bekker Steel Steel Erector Ÿ On Par Cladding Contractor Ÿ Façade Solutions Corrosion Protection Paintwork Contractor Ÿ Dram