Grande designs

A new road that will connect the towns of Saint Paul and Etang Sale on Reunion Island has to cross deep ravines. The contract for the design and construction of the bridge over the Grande Ravine was awarded to a joint venture of consultant Setec TPI and architect Alain Spielmann. The ravine is 320m wide at natural ground level and 170m deep, preventing construction work from below. The bridge design had to withstand cyclones and needed to protect Baillon's puffins nesting in the ravine. The sides of the ravine were made up of alternating banks of basalt and volcanic slag. The resulting design is a 228m-long steel box girder with an orthotropic slab launched from either side and connected midspan. Intermediate supports will be provided by two high-performance prestressed concrete braces inclined at 20 degrees to the horizontal. Braces built into foundations that are buried in the rock of the two banks are used to support the bridge. During construction, a temporary stay is installed to connect the head of the brace to the abutment. This will limit the bending moment in the brace during launching.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/oclc/10480594
• Authors:
  • CROISET, J -
  • RYCKAERT, J
  • VIEL, G
  • SPIELMANN, A
• Publication Date: 2006

Language

• English

Media Info

• Pagination: 28-9
• Serial:
  • Bridge Design & Engineering
  • Issue Number: 44
  • Publisher: Hemming Information Services
  • ISSN: 1359-7493
  • Serial URL: http://www.bridgeweb.com/Default.aspx

Subject/Index Terms

• TRT Terms: Beams; Bridges; Concrete; Construction; Design; Environmental protection; Islands; Launching; Prestressed concrete; Steel; Weather resistance
• Uncontrolled Terms: Transverse
• Geographic Terms: France
• ITRD Terms: 3472: Beam; 3455: Bridge; 4755: Concrete; 3655: Construction; 9011: Design (overall design); 8036: France; 4027: Island; 3412: Launching (by sliding); 2448: Nature protection; 4796: Prestressed concrete; 4542: Steel; 9081: Transverse; 5940: Weather resistance
• Subject Areas: Bridges and other structures; Construction; Design; Environment; I24: Design of Bridges and Retaining Walls; I53: Construction of Bridges and Retaining Walls;

Filing Info

• Accession Number: 01050779
• Record Type: Publication
• Source Agency: Transport Research Laboratory
• Files: ITRD
• Created Date: Jun 5 2007 12:11AM