Eselriet Sports Center, Effretikon
1st prize in competition
The main load-bearing structure of the roof consists of welded truss girders made of tubular profiles that span the ice rink transversely. The secondary load-bearing structure is a membrane surface with a footprint of 35 x 63 m. The membrane is divided into six inner bays with a span of 10.6 m and two edge bays of 5.30 m each. In the center of each bay, the membrane is tensioned into shape by a tension cable. The membrane field is framed by a concrete ring beam, which absorbs the loads from the truss girders and tension cables and transfers them to the concrete columns. The existing grandstand was covered by a new concrete slab that connects to the main columns. This concrete slab continues along the opposite longitudinal side and the transverse sides, providing space for 500 to 750 spectators.