Light, transparent roofs that are both open and yet afford protection span the gently landscape Olympic Park with the Olympic stadium, the Olympic Arena and the Olympic Swimming Hall.
A cable net structure consisting of many almost regular saddle-shaped surfaces framed by edge cables is suspended at several points from masts. They are situated behind the grandstand, or are supported on the inside by cable-supported props, and then back anchored. The geometrical precision, the cutting pattern and the prefabrication asked for totally new solutions. This resulted in a first and large-scale computer application for such problems and – especially of significance for the later “High-Tech-Architecture” – in a renaissance of cast steel in structural engineering.

Roof area: 74,000 m²
Cable net mesh width: 75 × 75 cm
Edge cables: locked coil ropes
Guy cables: parallel strand bundles
Joints and connectors: cast steel
Masts: steel tubes
Cover: acrylic glass (Plexiglas)