fabricators to select UC sections radiussed about the
major axis. The Hulabond cladding box adopted the final
trapezoidal form. Round tubes were used for the lacing
in combination with web plates.
With the concept realised and agreed with the architect,
the structural team got to work developing a parametric
algorithm in the visual programming environment of
Dynamo, which works seamlessly with Revit. This was
then used to solve the geometry of all of the arches by
iterating through the parameters of the sphere, and the
arch truss centerlines imported into the global OASYS
analyses and REVIT models and ultimately into TEKLA.
The internal truss grillage is a simple 6 x 6 grid, allowing
the designers some latitude to offer up future-proofing
for spot loads at the intersections, as well as providing a
sensible patchwork for the arrangement of acoustic lining,
services reticulation and suspended acoustic blades above
the 3,500 seated auditorium array.
Simple IPE purlins set up a bottom angle shelf frame for
the acoustic lining and a platform for the Klip-Tite sheeting
system. A clamped bracket was devised for all the in-roof
services so that post erection drilling or screwing could
be prohibited globally.
Steel Awards
Global buckling considerations paid attention to the arch
arrangement, and overall stability, as well as serviceability
for pre-cambers, and interim construction step models
incorporating temporary support towers to protect the
geometry during erection. All the arches end with exactly
the same ‘cheese wedge’, terminating on articulating pot
bearings designed to resist pull-off (when the wind blows).
Architect: Elphick Proome Architects
Structural Engineer: NJV Consulting
Quantity Surveyors: RLB Pentad; Abakali
Project Manager: M3 Africa Consulting
Main Contractor: Steffanuti Stocks Building KZN
Steelwork & Cladding Contractor: Impact Engineering
Steel Erector: CMGC Projects
Cladding Manufacturer: Global Roofing Solutions
Corrosion Protection: Phoenix Galvanising
Paintwork Contractor: Top Coat
Fabrication Detailing: Strutech 3D Modelling
Corrosion Consultant: T.H.C.P.S.
Access Consultant: Façade Solutions
Bearing Supplier: Nova Engineering Works
Arch Cladding Sub Contractor: Scope of Work
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