PERFORMANCE UNDER CYCLIC LOADING OF THE FOUNDATIONS OF INTEGRAL BRIDGES

Bridge construction with continuous deck and integral abutments eliminates the need for expansion joints and bearings resulting in better durability and reduced maintenance costs. However with integral bridges, seasonal temperature variations are capable of inducing significant movements of the abutments through expansion and contraction of the deck. If this movement is not adequately accommodated, sliding or rocking of the abutment upon its foundation may result in soil yielding and reduced bearing capacity, particularly for clays. This report reviews available data on low frequency cyclic loading and discusses the implications on the design parameters appropriate to the foundation problem. The performance of cohesive soils in an integral bridge foundation is compared with the behaviour of granular soils. The review is supported by results from laboratory triaxial tests which simulate the cyclic loading regime in an integral bridge situation. (A)

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/09684107
• Corporate Authors:

  TRL

  Crowthorne House, Nine Mile Ride
  Wokingham, Berkshire  United Kingdom  RG40 3GA
• Authors:
  • CARDER, D R
  • HAYES, J P
• Publication Date: 2000

Language

• English

Media Info

• Features: References;
• Pagination: 58 p.
• Serial:
  • TRL REPORT 433
  • Publisher: TRL
  • ISSN: 0968-4107

Subject/Index Terms

• TRT Terms: Abutments; Bridges; Continuous structures; Design; Foundations; Paving; Repeated loads; Surfacing
• ITRD Terms: 3424: Abutment; 3455: Bridge; 3493: Bridge surfacing; 9006: Continuous; 9011: Design (overall design); 3377: Foundation; 5588: Repetitive loading
• Subject Areas: Bridges and other structures; Design;

Filing Info

• Accession Number: 00795130
• Record Type: Publication
• Source Agency: Transport Research Laboratory
• Files: ITRD, ATRI
• Created Date: Jul 7 2000 12:00AM