| Guyed Masts, Cable Net Towers and Steel Lattice Towers |
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Location Stuttgart
Type of structure Prestressed cable-net structure
Owner/Client Verschönerungsverein der Stadt Stuttgart
Completed 2001
Scope of our work Conceptual design, detailed design, site supervision
Architect Hans Luz und Partner, Landschaftsarchitekten, Stuttgart
The platforms of the lookout tower with levels of 8,16,24 and 31 m offer a fantastic view over the city of Stuttgart and its surroundings. Two light spiral staircases, one to lead visitors up and one to bring them down, would wind around the inner surface of the hypar-shaped cable-net. 48 cables are ´spun´ around the central mast and the platforms. The net, through the floors, stabilises the mast and reduces its tendency to buckle under vertical compression. A compression ring at 34 m changes the direction of the cables to the top of the mast. At the outer edge of the platforms, the radial main-girders are supported with clamps by the prestressed net and the inner edge is directly connected to the mast. The floors are covered with steel-plates also responsible for the stiffening of the platforms. The outer runner beams of the staircases are clamped to the cable-net while their inner sides support the stair treads. The tension forces of the cables are anchored in a heavy-weight foundation ring, the compression force of the mast will be transferred and distributed by a central foundation slab.
Height 40 m