The top portion of the steel roof was designed to fall 3 ways in order to reduce the steel roofs height near the edges of the roof. Thus, preventing the steel structure sticking out over the 45-degree concrete sill beams looked at from ground level. This was done by means of trusses angle at 45 degrees to the primary truss as seen in the roof design. Trusses were set on a concrete nib that ran around the eaves in order to ease the fixing of the steel to the concrete frame.

Middle roof: This portion was less complicated than the top roof as the trusses all ran parallel to one another. An unconventional aspect was the fact that the adjacent cantilevered canopy was supported by this roof horizontal bracing, which was catered for in the design.

Warehouse roof: This roof was made up of a truss and girder system where trusses spanned approximately 14m and girders approximately 17m in order to correlate with the architect’s vision. Design was optimized by angling the trusses bottom chords and reducing depth where possible in order to save steel.

Canopy: The canopy is cantilevered off the side of the concrete frame thus eliminating steel stanchions and optimizing the space of the staging area.

STRUCTURAL STEELWORK
Completion date of steelwork 8 October 2018
 Completion date of full project 12 December 2018
Tons of structural steel used 32 Tons
Structural profiles used Beams; Trusses; horizontal bracing; Girders