Felsenau Viaduct
Coordinates: 46 ° 58 ′ 9 " N , 7 ° 26 ′ 50" E ; CH1903: 600 654 / 202010
| Felsenau Viaduct | ||
|---|---|---|
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| use | Autobahn 1 | |
| Subjugated | Aare | |
| place | Bern | |
| construction | Prestressed concrete bridge | |
| overall length | 1116 m | |
| width | 26.2 m | |
| Number of openings | 17th | |
| Longest span | 144 m | |
| Construction height | 8 m | |
| height | 60 m | |
| start of building | 1972 | |
| completion | 1974 | |
| opening | 4th September 1975 | |
| planner | Christian Menn | |
| location | ||
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The Felsenau Viaduct , originally and therefore mostly referred to in the literature as the Felsenaubrücke Bern , is located in the north of the city of Bern and with a maximum span of 156 meters is one of the most important bridges in Switzerland. It is part of Autobahn 1 and lies between the Bern-Neufeld junction and the Bern-Wankdorf junction. The viaduct crosses the Aare valley at a height of 60 meters . The bridge was built between 1972 and 1974, opened on September 4, 1975 and cost approximately 27 million Swiss francs. The viaduct was comprehensively renovated in 2010 and 2011. Among other things, it received new edge walls, seals and coverings.
construction
The prestressed concrete bridge was designed by Christian Menn and has a total length of 1116 meters with 17 spans with spans of 38 m + 5x48 m + (94 + 6) m + 2x (144 + 12) m + (94 + 6) m + 6x48 m + 38 m. The eastern 200 meters of the seamless bridge have a radius of 800 meters in the ground plan, in the direction of Wankdorf there is a mean longitudinal gradient of 1.8%, lane crossings for 42 cm deformation path are available at the abutments . The superstructure is a relatively narrow single-cell prestressed concrete box girder with inclined webs with a total width of 26.2 meters and a carriageway slab protruding 7.6 meters on both sides. In the adjacent fields the superstructure has a constant construction height of 3.5 meters, in the sections with the large spans it is haunched and has a cross-section height of 3.0 meters in the middle of the field and 8.0 meters above the double pillars. All pillars are only 7.46 meters wide, with a thickness of 2.4 meters for the double pillars, which are at a distance of 12 meters, and 1.8 meters for the standard pillars.
The access viaducts were constructed on falsework , with the hollow girders first being concreted in sections and then the cantilevered carriageway slab. The four main fields were cantilevered .
The Felsenau Viaduct is not with the past in the same district Felsenau bridge to be confused.
Trivia
The Felsenau Viaduct was still used as a filming location for the film adaptation of Dürrenmatt's novel The Judge and His Executioner during construction . Commissioner Bärlach pursues the car of the murderer Tschanz over the partially built bridge and lets the criminal fall 60 meters deep at the edge of the bridge.
literature
- Christian Menn: Project and execution of the rock bridge in Bern . In: Schweizerische Bauzeitung . tape 93 , no. 39 , 1975, p. 610–612 , doi : 10.5169 / seals-72827 .
- VSL International Bern: Job Report September 1976.
See also
Web links
Individual evidence
- ^ Christian Menn: Project and execution of the rock bridge in Bern. In: Schweizerische Bauzeitung. 93rd year, issue 39, pp. 610–612.
- ↑ Federal Roads Office : data and facts ( Memento from June 8, 2009 in the Internet Archive )
- ↑ Federal Roads Office: The Felsenau Viaduct crime scene ( Memento from February 28, 2010 in the Internet Archive )
- ↑ Federal Roads Office: The Felsenau Viaduct crime scene ( Memento from December 1, 2010 in the Internet Archive )