STRESS REDISTRIBUTION IN CYCLICALLY LOADED REINFORCED CONCRETE BEAMS

Although there has been historically little concern about the fatigue life of reinforced concrete (RC) flexural members, the recent emphasis on rehabilitation and extending the service life of existing infrastructure brings to the fore concerns about the fatigue life of RC beams and slabs. This paper gives a predictive fatigue model using a concept of stress redistribution in an RC beam when loaded cyclically. Cyclic properties of the constituent materials are combined with a strain-life approach to metal fatigue prediction to calculate the fatigue life of RC beams. Theoretical results are validated by experimental results previously reported. The cyclic stress redistribution and strain-life approach to fatigue calculations appear appropriate for calculating residual fatigue life of RC members being considered for rehabilitation.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/oclc/13846957
• Corporate Authors:

  American Concrete Institute (ACI)

  38800 Country Club Drive
  Farmington Hills, MI  United States  48331
• Authors:
  • Heffernan, P J
  • Erki, M-A
  • DuQuesnay, D L
• Publication Date: 2004-3

Language

• English

Media Info

• Features: Figures; References; Tables;
• Pagination: p. 261-268
• Serial:
  • ACI Structural Journal
  • Volume: 101
  • Issue Number: 2
  • Publisher: American Concrete Institute (ACI)
  • ISSN: 0889-3241
  • Serial URL: http://www.concrete.org/PUBS/JOURNALS/SJHOME.ASP

Subject/Index Terms

• TRT Terms: Beams; Bridge engineering; Cyclic tests; Fatigue strength; Flexure; Infrastructure; Rehabilitation; Reinforced concrete; Slabs; Strain (Mechanics); Structural members
• Subject Areas: Bridges and other structures; Design; Highways; I24: Design of Bridges and Retaining Walls;

Filing Info

• Accession Number: 00971272
• Record Type: Publication
• Files: TRIS
• Created Date: Mar 9 2004 12:00AM