STATE OF THE ART REPORT ON PRESTRESS LOSSES IN POST-TENSIONED MEMBERS

This report presents a survey of the literature concerning the prestress loss characteristics of post-tensioned concrete structural members. Findings by previous researchers related to time-dependent loss components (such as creep and shrinkage of concrete and relaxation in steel), the effect of temperature, and additional losses due to post-tensioning (namely friction and anchorage take-up) are presented and discussed. Specification and code provisions currently in use are reviewed, and the inadequate nature of such provisions is cited. The need for further research is indicated in the area of prestress losses in post-tensioned concrete structural members.

  • Supplemental Notes:
    • Prepared in cooperation with Pennsylvania Dept. of Transportation, Harrisburg.
  • Corporate Authors:

    Lehigh University

    Fritz Engineering Laboratory
    Bethlehem, PA  USA  18015

    Pennsylvania Department of Transportation

    Commonwealth and Forster Streets
    Harrisburg, PA  USA  17120

    Federal Highway Administration

    1200 New Jersey Avenue, SE
    Washington, DC  USA  20590
  • Authors:
    • Rimbos, P
    • Huang, T
  • Publication Date: 1975-7

Media Info

  • Pagination: 66 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00143043
  • Record Type: Publication
  • Source Agency: National Technical Information Service
  • Report/Paper Numbers: FEL-402.1 Intrm Rpt., FHWA/PA-74-3-1
  • Files: NTIS, TRIS, USDOT, STATEDOT
  • Created Date: Oct 6 1976 12:00AM