Warren and Mahoney Architects
Semi circular in plan, the structure defines the space with a ring of concrete columns each supporting a timber truss tied back to the perimeter walls.
The trusses are formed from paired sawn timber top and bottom chords connected with vertical timber struts. Triangulation of the trusses is achieved by diagonal steel tension only struts. Steel bolt connections are made between the paired chords at regular intervals along their length. A plywood timber ceiling conceals all other roof structure and forms a roof diaphragm, making the trusses the key feature of the lofty space.
Location:
Wellington, New Zealand
Reference:
New Zealand Timber Today, September 1990, Vol 15, No 2