Brotonne Bridge
Coordinates: 49 ° 31 ′ 13 ″ N , 0 ° 44 ′ 50 ″ E
| Pont de Brotonne | ||
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| use | Road bridge | |
| Crossing of | His | |
| place | Caudebec-en-Caux | |
| construction | Cable-stayed bridge | |
| overall length | 1278 m | |
| width | 19.2 m | |
| Longest span | 320 m | |
| Construction height | 3.8 m | |
| start of building | 1974 | |
| completion | 1977 | |
| planner | Jean Muller , Jacques Combault et al. a. | |
| location | ||
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The Brotonne Bridge (French. Brotonne ) is on His leading cable-stayed bridge between Rouen and Le Havre on the northern coast of France . In this section, the Seine is also navigable for ocean-going ships. The next bridge upstream is the Pont Gustave Flaubert in Rouen around 70 kilometers away or 35 kilometers by road , the next bridge downstream is the Pont de Tancarville around 40 km away . The structure is part of the Route départementale RD 490 and is used as a four-lane road bridge with two 6.5 m wide carriageways and two 1.5 m wide sidewalks. According to a decision by the council in the Seine-Maritime department , use of the bridge has been free of charge since summer 2005.
Description and dates
The bridge was built between 1974 and 1977 was then the first major cable-stayed bridge with a bridge deck of a continuous prestressed concrete - hollow box and had the largest wingspan of all cable-stayed bridges built of concrete. It was designed by the engineers Jean Muller , Jacques Mathivat and Jacques Combault , who worked for the construction company Campenon Bernard . The architects Auguste Arsac, Philippe Fraleu and Pierre Loyer contributed to the design.
The bridge is 1278 m long and, apart from the supporting cables, is a pure reinforced concrete structure . The main bridge is 607 m long and its span is 320 m. Its roadway girder consists of a single-cell prestressed concrete box girder with a constant height, which is stiffened on the inside by inclined precast webs. It was produced in a cantilever with precast segments. The two side fields have field widths of 143.5 m each. The clearance for ships is 50 m.
The two rod-shaped pylons made of reinforced concrete , which are centrally arranged in the transverse direction, are 125 m high. The 21 stay cables are led through the pylons on cable saddles and anchored in the bridge deck in an almost harp-shaped arrangement on both sides.
The main bridge is supplemented by a northern and a southern ramp bridge, which as a rule have a pillar spacing of 58.5 m. The ramp bridges are girder bridges whose constant superstructure height of 3.8 m is unchanged from the main bridge. The pillars are 8.75 m wide and have a hollow cross-section.
Web links
Individual evidence
- ^ Holger Svensson: Cable-stayed bridges. 40 years of experience worldwide . Ernst & Sohn, Weinheim 2011, p. 98.
- ↑ René Walther, Bernard Houriet, Walmar Isler, Pierre Moïa: Cable- stayed bridges . Revised and translated, Verlag Bau + Technik / Beton-Verlag, Düsseldorf 1994, pp. 28, 49.
- ↑ Jacques Mathivat: Un exemple de pont à haubans multiples répartis avec préfabrication partial du tablier: le pont de Brotonne (The bridge of Brotonne, an example of cable-stayed bridges with distributed cables and partially prefabricated roadway). In: IABSE congress report = Rapport du congrès AIPC = IVBH Kongressbericht , Volume 10, 1976, pp. 445–450 ( http://doi.org/10.5169/seals-10574 )