THE BROTONNE BRIDGE OVER THE SEINE. A NEW WORLD RECORD FOR PRESTRESSED CONCRETE SPAN

LE PONT DE BROTONNE SUR LA SEINE - NOUVEAU RECORD DU MONDE DE PORTEE EN BETON PRECONTRAINT

The overall length of the bridge is 1278,40 M. The main part consists of a prestressed concrete stayed girder bridge 696,50 M long and of two access viaducts. The central span is 320 M long, the stays rest on 2 reinforced concrete masts 70 M high over the bridge deck. Details are given of the geometric and technical characteristics: foundations, bridge piers (of curvilinear octagonal shape), abutments (the conventional transition slab is replaced with a soil-cement mass), bridge deck (monocellular beam of constant height stiffened internally by means of skew cross bars; the beam consists a two-web segment prestressed longitudinally, transversally and vertically); attention is drawn to the extremely complex prestressing system and to the studies performed (electronic calculation program, model studies, tests on masts in a wind tunnel). The various stages of construction are outlined: foundations, earthworks, piers, bridges, masts, stays, etc. It is envisaged to open the bridge to traffic in the summer of 1977. Costs are quoted. /TRRL/

  • Publication Date: 1976-11

Language

  • French

Media Info

  • Features: Figures; Photos; Tables;
  • Pagination: p. 18-27
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00188045
  • Record Type: Publication
  • Source Agency: Transport and Road Research Laboratory (TRRL)
  • Files: ITRD, TRIS
  • Created Date: Mar 14 1979 12:00AM