ELASTIC BEHAVIOUR OF OPEN SANDWICH BRIDGE DECKS

The structural behaviour of multibay, open sandwich, reinforced concrete bridge decks is investigated, using the finite prism method. It is found that flat slab decks and inverted catenary slab decks exhibit satisfactory load distribution properties, but that their thin depth leads to unusually large in-plane shear distortion. Simpler methods of analysis are shown to be adequate for flat slabs, but not for inverted catenary slabs. The control of tensile cracks in the upper surface of the slabs is shown to be necessary, especially when the shear connection between the steel soffit plate and the concrete is provided by an adhesive bond. In the case of inverted catenary decks, adequate crack control can be provided by cross-members that restrain lateral and rotational displacements of the longitudinal beams. (Author/TRRL)

  • Availability:
  • Corporate Authors:

    Institution of Structural Engineers

    11 Upper Belgrave Street
    London,   United Kingdom  SW1X 8BH
  • Authors:
    • Wong, CCK
    • VARDY, A E
  • Publication Date: 1985-3

Media Info

  • Features: Figures; References; Tables;
  • Pagination: p. 8-13
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00395564
  • Record Type: Publication
  • Source Agency: Transport Research Laboratory
  • Files: ITRD, TRIS
  • Created Date: Nov 30 1985 12:00AM