This 6-lane bridge crosses a rather flat valley with a little river, a quite usual situation. However sliding subsoil conditions made the founding of piers on one side of the valley difficult and costly. Therefore we proposed a 258 side span combining a cable-staying from above and propping from below, winning with that first prize in a competition.
This combination halves the pylon height of a standard cable-stayed bridge, without increasing the cable forces. The low pylon and the overall lightness of this large bridge blend well with its pre-alps surroundings.
This combination halves the pylon height of a standard cable-stayed bridge, without increasing the cable forces. The low pylon and the overall lightness of this large bridge blend well with its pre-alps surroundings.
- Location
Wangen im Allgäu, Germany
- Architect
schlaich bergermann partner; Hans Kammerer, Stuttgart
- Client
Autobahnamt Baden-Württemberg
- Contractor
Walter-Thosti-Boswau AG, Dyckerhoff & Widmann AG sowie Compagnie Francaise d’Entreprises Metalliques
- Our Scope of Work
conceptual design, check of construction design
- Length 730 m
- Width 29 m
- Height of bridge above valley max. 40 m
- Span 258 m
- Height of pylons 55 m
- Cables fully locked spiral strands, diameter 126 mm