Pont Chateaubriand
Coordinates: 48 ° 32 ′ 14 " N , 1 ° 58 ′ 17" W.
| Pont Chateaubriand | ||
|---|---|---|
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| use | Road bridge | |
| Convicted | N 176 | |
| Crossing of | Rance | |
| construction | Concrete arch bridge | |
| overall length | 424 m | |
| width | 11.72 m | |
| Longest span | 250 m | |
| Pillar spacing | 261 m | |
| Arrow height | 34.80 m | |
| completion | 1990 | |
| planner | Michel Virlogeux, Jacques Mathivat, Charles Lavigne a. a. | |
| location | ||
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The Pont Chateaubriand is a road bridge in Brittany that leads the Route Nationale 176 (E 401) over the Rance . It relieves the load on the Pont Saint-Hubert, 240 m further south, between the towns of Le Port Saint Hubert in the municipality of Plouër-sur-Rance in the Côtes-d'Armor department on the left bank and Le Port Saint-Jean in the municipality of La Ville-ès -Nonais in the Ille-et-Vilaine department on the right bank.
It is named after the writer François-René de Chateaubriand , who was born in Saint-Malo .
description
The bridge has two lanes and narrow hard shoulders, but no sidewalks.
The bridge is a total of 424 m long and 11.72 m wide. Your big bow consists of a 4.20 m high and 7.50 m wide reinforced concrete - concrete box standing m between pillars with a Pfeilerachsabstand of the 261st Its span is 250 m, as it is supported on fighter foundations that protrude a few meters from the foundations of the pillars that delimit the arch. These foundations are not visible because they are below the mean low water and are covered by the silt and sand of the bank. The arch has an arrow height of only 34.80 m. The roadway girder is erected over its entire length on round reinforced concrete pillars arranged in pairs with pillar spacing of 27.5 + 13 × 29.0 + 19.5 m. The deck itself is a composite structure made of a steel frame and a reinforced concrete slab.
The bridge took a long time to plan. The concept goes on at that time in the state building authorities Service d'études techniques des routes et autoroutes (SETRA) operating Michel Virlogeux back. The design was created under the direction of Jacques Mathivat with the architectural advice of Charles Lavigne .
The bridge was built by Campenon Bernard . The arch was cantilevered , with the arch halves being braced on temporary supports on both sides of the fairway. The bridge was completed in 1990, according to other sources in 1991.
The RN 176 has been expanded to four lanes, except for the Pont Chateaubriand and a subsequent section. This regularly leads to congestion, especially during the holiday season. It has therefore been discussed for a long time whether to widen or double the bridge.
Web links
- Pont Chateaubriand, La Rance on bristol.ac.uk (English)
Individual evidence
- ↑ a b Hervé Ditchi, Nicolas Henry: Etude de faisabilité de mise à 2x2 voies de la RN176 sur le pont Chateaubriand on ifsttar.fr (with plan sketches; French, PDF, 2.8 MB)
- ↑ Sven Ewert: Bridges - The development of spans and systems . Ernst & Sohn, Berlin 2003, ISBN 3-433-01612-7 , pp. 201 ( limited preview in Google Book search).
- ↑ Pont Chateaubriand sur la Rance on MichelVirlogeuxConsultant.com (French, PDF; 520 kB)
- ↑ Chateaubriand Bridge. In: Structurae