Estimating Prestress Loss in Pretensioned, High-strength Concrete Members

This paper presents research conducted under the National Cooperative Highway Research Program (NCHRP) Project 18-07, "Prestress Losses in Pretensioned High-Strength Concrete Bridge Girders." The aim of the Project was to extend the American Association of State and Highway Transportation Officials' AASHTO LRFD Bridge Design Specifications provisions for estimating prestress losses to cover concrete strengths up to 15 ksi (104 MPa). The paper presents the portion of the work that deals with methods of estimating long-term prestress loss. The results reported were adopted by AASHTO and included in the 2005 and 2006 interim revisions and in the 4th edition of the LRFD specifications, published in 2007.

  • Availability:
  • Authors:
    • Al-Omaishi, Nabil
    • Tadros, Maher K
    • Seguirant, Stephen J
  • Publication Date: 2009

Language

  • English

Media Info

  • Media Type: Print
  • Features: Appendices; Figures; References; Tables;
  • Pagination: pp 132-159
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 01144455
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Nov 3 2009 6:16PM