General Information
| Other name(s): | Passage supérieur 73 à Beaune |
|---|---|
| Completion: | 1992 |
| Status: | in use |
Project Type
| Structure: |
cable geometry: Cable-stayed bridge with fan system original configuration: Girder bridge current configuration: Two-span single-pylon cable-stayed bridge |
|---|---|
| Secondary structure(s): |
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| Function / usage: |
Motorway bridge / freeway bridge |
Location
| Location: |
Beaune, Côte-d'Or (21), Bourgogne-Franche-Comté, France |
|---|---|
| Location description: |
The overpass is located at the junction of the A31 and A6 motorways near Beaune, France. |
| Coordinates: | 47° 0' 47.93" N 4° 51' 59.89" E |
Technical Information
Dimensions
| Initial construction | ||
|---|---|---|
| span lengths | 10 m - 20 m - 20 m - 10 m | |
| number of spans | 4 | |
| Reconfiguration | ||
| span lengths | 30 m - 30 m | |
| number of spans | 2 | |
Chronology
| 15 November 1991 | Beginning of the works to reconfigure the original girder bridge into a cable-stayed bridge. |
|---|---|
| 15 April 1992 | Inauguration of the cable-stayed structure. |
Notes
The owner decided to widen the motorway underneath the bridge making it necessary to replace the original girder bridge whose piers were in the way of the new carriageway. The original solution proposed was the demolition of the existing bridge and construction of an entirely new replacement structure.
Razel's Michel Placidi proposed to keep the existing overpass by having the vertical reactions previously taken by the piers supported by cable stays instead. The forces are then transferred to a central pylon with two vertical columns braced laterally and placed on either side of the original piers in the central median. Additional stays connect the pylon to the abutments in order to reduce movements at the pylon head. Additionally, transverse prestressing is introduced at the stay anchorages in the deck. At the end of the works, the bridge was then completely converted from a girder bridge into a cable-stayed bridge. The new bridge has 6 stays with 27 T15 strands. This system has since been patented by Razel.
Participants
Reconfiguration
Owner
Concessionaire
Client
Original design
Architecture
-
Alain Spielmann Architecte
- Alain Spielmann (architect)
Alternative design
-
Groupe Razel
- Michel Placidi (designer)
Checking engineering
Contractor
Relevant Web Sites
There currently are no relevant websites listed.
Relevant Publications
- (1995): Les ponts modernes - vingtième siècle. Picard Éditeur, Paris (France), pp. 259.
- (1992): La transformation d'un passage supérieur en pont à haubans sur l'autoroute A6 à Beaune (Côte d'Or). In: Travaux, n. 678 (July 1992), pp. 85.
- (1993): Transformation en pont à haubans du PS 73 sur l'A6 à Beaune. In: Ouvrages d'art, n. 14 (March 1993), pp. 13-15.
- About this
data sheet - Structure-ID
20004231 - Published on:
09/07/2002 - Last updated on:
14/11/2022
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