CABLE-STAYED PRESTRESSED CONCRETE BRIDGE

The design and construction of a motorway bridge over the Danube canal at Vienna are outlined. It was necessary to restrict the greater part of the span to a maximum depth of 2.8M, giving a 1:42 depth/span ratio. The bridge was built in two halves with a pair of centrally positioned integral towers, each carrying cable stays and supported on a single pier. Each half was constructed, parallel to the canal, on the bank and was rotated into its final position at 45 degrees to the canal. The 15M wide bridge is an in situ concrete box-section constructed in 7.6M long sections, post-tensioned on completion. During construction, the forces set up within the cantilevers were restrained by transverse prestressing tendons; these tendons remain in tension and now contribute to the overall slab reinforcement. The prestressing varies throughout the length of the bridge, the areas of highest concentration being in the regions of the towers and the centre of the main span. The cables, the erection of the stays, post tensioning of the deck and rotation of the deck are briefly described. /TRRL/

  • Corporate Authors:

    Department of the Environment

    Room 1640 Lunar House, 40 Wellesley Road
    Croydon CR9 2EL,   England 
  • Publication Date: 1975-12

Media Info

  • Features: Figures; Photos;
  • Pagination: p. 42-43
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00134361
  • Record Type: Publication
  • Source Agency: Transport and Road Research Laboratory (TRRL)
  • Report/Paper Numbers: SERIAL
  • Files: ITRD, TRIS
  • Created Date: Sep 16 1976 12:00AM