Construction World March 2017

Project information • Client : Attacq Waterfall Investment Company • Property developer: Atterbury • Civil, structural, façade, wet services and transport engineers: Arup • Architect and project manager: LYT Architecture • Quantity surveyor: Brian Heineberg and Associates • Mechanical engineer: WSP • Electrical engineer: Claasen Auret • Fire engineer: SFT • LEED consultant: Ecocentric

• Main contractor: WBHO • PT contractor: Amsteele • Steel contractor: Cadcon • Façade contractor: Geustyn & Horak

façade, randomly scattering façade panels and making spandrels non-reflective. In the end, it was decided that the best solution was to use a less reflective glass in the spandrels that was further enhanced by acid etching. Landscape shading addressed any remaining concentrations over limit. Stormwater management Careful consideration has been given to mitigate the risk of flooding. Utilities provision has been considered and a storm

water management plan has been prepared to inform the SDP submission as well as the LEED assessment. Conclusion The PwC Tower, when complete, will be exemplary. Not only will its striking profile be recognisable from many kilometres away, it will also stand testimony to the skill and innovation found in South Africa’s built environment fraternity. Lawson gives Arup’s highlights of the design: “Our use of parametric modelling software on a project of this scale is unique within South Africa. By taking this approach we realised both time and cost efficiencies and a better integrated and well considered design, with all architectural and construction factors in sync. “Because tall buildings of this scale are no longer the norm in South Africa, the team had to consider appropriate current methodologies and technologies throughout design. We believe this project highlights one of Arup’s founding principles – that of holistic design. The PwC tower is being made possible through industry collaboration and the embracing of technology to facilitate that collaboration”. 

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CONSTRUCTION WORLD MARCH 2017