Architect and Builder Magazine South Africa Dec 2017 / Jan 2018 - Page 46

electric lighting. The daylight studies explored how sunlight could animate the space through the seasons, as well as creating a dynamic and visually engaging environment for museum visitors. These studies informed the geometry and material selection of the key atrium glazed apertures. A method was developed for the new glazing that would give a similar convex effect. The solution was to use facets of glass, organised to create a subtle convex shape. Built with structural glass, the composition strengthens the frames of 60mm x 15mm steel bars to make a transparent shell. Forming a kaleidoscope of changing textures and colours the glazing creates irregular, sparkling 46 patterns and provides far-reaching views. By night, the building lights up and acts as a lantern for the harbour and the city beyond. Structural Engineering – Zeitz MOCAA Structurally engineered by Arup and Sutherland, the Zeitz MOCAA building originally consisted of 42 interlinked grain silos constructed off a deep concrete raft foundation required due to founding conditions varying from hard bedrock to 6m of fill. Significant portions of the complex foundations needed to be demolished to fulfill the ‘carving’ of the bottom of the huge ‘corn grain’ and new lift bases etc. Half of the internal silos were Zeitz Mocaa