ASSESSMENT OF SUBSTRUCTURES AND OVER-CONSERVATISM IN DESIGN

In this report the findings of an appraisal of 25 existing reinforced concrete bridge abutments and retaining walls is presented. These substructures were, in most cases, designed more than a decade ago on the basis of standards and codes which have now been superseded or revised. A quantative appraisal of the adequacy of these substructures has been carried out and design procedures given in Departmental Standards and Advice Notes. It is shown that the majority of the substructures are more than adequate under current assessment and design loads with high factors of safety for the limit state conditions investigated. Some substructures were found to be inadequate, particularly with reference to ultimate limit state condition of the soil for sliding and bearing pressure. Some tentative conclusions on the work are presented.

  • Availability:
  • Corporate Authors:

    TRL

    Crowthorne House, Nine Mile Ride
    Wokingham, Berkshire  United Kingdom  RG40 3GA
  • Authors:
    • CARD, G B
    • DARLEY, P
  • Publication Date: 1995

Language

  • English

Media Info

  • Features: References;
  • Pagination: COMPLEX PAGINATION
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00676039
  • Record Type: Publication
  • Source Agency: Transport Research Laboratory
  • Files: ITRD
  • Created Date: Apr 12 1995 12:00AM