THE RIP BRIDGE

This article gives details of the design and construction of the rip bridge at Brisbane Water, New South Wales. This is an arch-shaped pre-stressed concrete cantilever truss structure which crosses the channel by means of a single 183 m long span, selected because of the fast tidal currents at the location where brisbane water narrows to a zoom width, and to avoid obstructing the waterway. The article includes details of the bridge itself and the two reinforced concrete piers which support it. These rest on rock shelves and are given further support with reinforced concrete piles sunk through to bedrock. The author describes, with the aid of diagrams, how the bridge was constructed by adding successive segments to the arch (working from both sides) until they could be joined in the center. At the hinge joints between the segments, steel bearing plates were augmented by a battery of twenty 460mm freyssi flat jacks. This system enabled adjustments to be made to the camber as necessary and to provide for joint rotations during erection. Reference is made to the slenderness of the members and the overall delicacy of the design in relation to its situation in an area of great natural beauty. /TRRL/

  • Corporate Authors:

    Concrete Publishing Company

    147 Walker Street North
    Sydney, New South Wales 2060,   Australia 
  • Publication Date: 1974-9

Media Info

  • Features: Figures; Photos;
  • Pagination: p. 40-47
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00125580
  • Record Type: Publication
  • Source Agency: Transport and Road Research Laboratory (TRRL)
  • Files: ITRD, TRIS
  • Created Date: Mar 29 1976 12:00AM