RESEARCH REQUIREMENTS FOR BRIDGE DECK EXPANSION JOINTS

Any type of joint is a potential source of weakness. Modern concrete and steel bridges have joints to accommodate the movements of the bridge deck relative to the adjacent pavement. Many of these joints leak, allowing water and chlorides to penetrate deck ends, abutments, piers and crossheads and cause corrosion of the reinforcing steel. The performance of current joints is very variable. Some are satisfactory, but many have service lives of only a few years and are expensive to maintain. Joint performance is determined by a complex combination of factors. Some of the main factors are: the movements at the joint resulting from thermal variations and wheel loading, the properties of the materials used, and the installation conditions and standard of workmanship. This paper gives an overview of research to develop a performance based specification based on approval testing. Laboratory tests are needed to simulate movements and wheel loading on new joints, and material tests need to be developed for use in quality control. (A) For the covering abstract see IRRD 873218.

  • Availability:
  • Corporate Authors:

    E and F Spon Limited

    2-6 Boundary Road
    London,   England 
  • Authors:
    • CUNNINGHAME, J R
  • Publication Date: 1994

Language

  • English

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 00713353
  • Record Type: Publication
  • Source Agency: Transport Research Laboratory
  • ISBN: 0-419-19030-9
  • Files: ITRD
  • Created Date: Nov 22 1995 12:00AM