CONTINUITY ON DECKS WITH PRECAST BEAMS - PRACTICAL ISSUES

This paper considers the design issues, involved in making fully continuous decks from simply supported bridge beam arrangements, and some resulting practical considerations. From the viewpoint of ease of construction and economy, the most suitable method of constructing a continuous joint is to maximise the precast element, and minimise the site work and the number of bearings. The narrow in-situ connection over a single line of bearings has several advantages. The integral joint over a support consists of precast prestressed beams with a reinforced concrete slab and infill diaphragm. Special care is needed to avoid confusion, when analysing the hybrid section created by the joint. Relevant effects include: (1) SLS hogging bending; (2) ULS hogging bending; and (3) parasitic effects. The author considers that continuity on decks with precast beams should be further reviewed and investigated. It should be developed to a simple design process, which can easily be incorporated in current computer systems for grillage and finite element analysis. For the covering abstract see IRRD 873218.

  • Availability:
  • Corporate Authors:

    E and F Spon Limited

    2-6 Boundary Road
    London,   England 
  • Authors:
    • Taylor, HPJ
  • Publication Date: 1994

Language

  • English

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 00713358
  • Record Type: Publication
  • Source Agency: Transport Research Laboratory
  • ISBN: 0-419-19030-9
  • Files: ITRD
  • Created Date: Nov 22 1995 12:00AM