The white tents that make up the roof, arranged in a circle to form a giant flower, tell of the vastness of the desert, of the power and beauty of physical laws, and are reminiscent of Bedouin tents. The roof surface appears to be a pure membrane structure, but in fact it has a clear self-sufficient primary structure made of masts and cables as well as a separately-attached secondary structure made of a membrane with edge cables. The roof is divided into 24 identical elements each with a mast, equally distributed over a 246 m diameter circle and secured with an inner ring cable. Its deviative forces are transferred outwards via upper and lower radial cables that are not connected. Instead of being linked via a compression ring, they are anchored via vertical and slanting masts and cables, which naturally require elaborate foundations. As a result the roof is not a real looped cable roof since only the inner ring cable is wholly sealed.
Riyadh, Saudi Arabia
Ian Fraser Associates, London
Geiger- Berger Associates, New York
Ministry of Youth and Welfare, Saudi-Arabia
Philipp Holzmann AG, Frankfurt am Main; Birdair Inc., Amherst, NY
Our Scope of Work
construction design, site supervision