THE DUNSWART BRIDGE

The dual carriageway bridge built entirely from reinforced and prestressed concrete, crosses four existing railway station platforms, plus two future platforms, eight sidings, seven railway tracks and two access roads. The design employs precast beams placed parallel to centreline chords between piers, topped by cast-in-situ deck slabs with curved edges. The variability in span lengths made an incrementally launched deck construction uneconomical. Straight edge beams were hidden by curved fascia panels along the curved deck to soften the appearance of the bridge edge. Deep grooves were cast on the solid parapets to lessen their apparent height and provide strong horizontal lines. Pier column spacings and the shape of capping beams were detailed to provide an acceptable appearance from the platforms. Ceiling panels were placed between precast beams to improve the appearance of the underside of the bridge from the platforms.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/03799824
• Corporate Authors:

  Publications Division, Capricorn Communications

  PO Box 1111
  Halfway House,   South Africa 

  Publicaitons Division, Capricorn Communications

  PO Box 1111
  Halfway House,   South Africa 
• Authors:
  • -
• Publication Date: 1989-6

Language

• English

Media Info

• Pagination: p. 38-9
• Serial:
  • CONCRETE BETON
  • Publisher: Concrete Society of Southern Africa
  • ISSN: 0379-9824

Subject/Index Terms

• TRT Terms: Bridges; Design; Prestressed concrete; Reinforced concrete
• Geographic Terms: South Africa
• ITRD Terms: 3455: Bridge; 9011: Design (overall design); 4796: Prestressed concrete; 4794: Reinforced concrete; 8103: South Africa
• Subject Areas: Bridges and other structures; Design;

Filing Info

• Accession Number: 00498151
• Record Type: Publication
• Source Agency: Transport and Road Research Laboratory (TRRL)
• Files: ITRD, TRIS
• Created Date: Sep 30 1990 12:00AM