The roof structure provides protection from the elements to the main grandstand and adjoining stands.  The stadium was officially opened in 2013 but without a roof. As part of the upgrade of the stadium, a new roof was proposed.


What was the brief to the architect?

Provide a roof on the existing stands that is both practical as well as aesthetically pleasing on the eye.

Was the project envisaged in steel from the start? If not – why was it built in steel in the end?

Yes proposed as steel from the beginning

Give a brief description of the structural framing. What type of sections were used (e.g. hollow, cellular, I beams etc) and why?

The roof trusses and supporting columns are made entirely from Circular Hollow Sections (CHS)

Give a brief description of the cladding process (complexity, difficulty, innovation etc)

The bull-nose on the stadium roofs were a concern. A mock-up was carried out at the steelwork fabricator’s premises and approval was given to continue as planned

Were there any challenges in the fabrication of the project from the engineer’s design – if yes, please tell? Tell more about fabrication and erection process if it was complex, difficult, innovative etc.

The fabrication process required several fabrication jigs to be made up to accommodate the 84-no trusses required for the project. The tubular sections were rolled into various radii and the cross bracing were individually profiled cut to allow a stub-on connection to the main truss struts. The challenges faced during erection involved fitting a new roof onto an existing structure. Interface connections that were not in the envisaged locations, resulted in modifications having to be carried out on new steelwork.

What is special/ unusual/ innovative/ aesthetic about the steelwork/cladding
in this project?

The project is aesthetically appealing in that a previous stadium is now provided with a roof which enables the spectators to have some protection from the elements.

How did the project team work together (e.g contractor involved early, challenges/ ease of communication etc.)

Constant communication between the Steelwork Contractor and the Structural Engineer was critical to get agreement on being able to fit the new roof to the existing stadium stands.

STRUCTURAL STEELWORK
Completion date of steelwork March 2019
Completion date of full project April 2019
Tons of structural steel used Approx. 300 tons
Structural profiles used Tubular Steelwork up to 220mm diameter in roof
CLADDING
Completion date of cladding March 2019
Cladding profile/ type used 0,58mm IBR Chromadek Sheeting
Cladding area/ coverage and tonnage 7920 m2
Nominator CADCON (Pty) Ltd
Structural Engineer Aecom
Quantity Surveyor WBHO
Main Contractor WBHO
Steelwork Contractor CADCON (Pty) Ltd
Steel Erector CADCON (Pty) Ltd
Steel Detailer MONDO CANE
Cladding Supplier Clotan Steel
Cladding Contractor CADCON (Pty) Ltd
Corrosion Protection
Paintwork Contractor
Dram Industrial Coatings