A step-by-step computer method is presented for predicting the deflections and stress distribution due to creep and shrinkage of concrete and relaxation of prestressed steel. Reference is made to an available computer program which can be used for this prupose. The flow chart presented summarizes the analytical steps. The computer program accounts for the presence of the non-prestressed steel, the difference in ages of the concrete segments, the multiple stages in which the external loads and prestressing are applied, and the changes in geometry and support conditions as the construction progresses. The proposed method is applied to a three-span continuous highway bridge with the results presented to indicate the significance of the time-dependent effects.

  • Availability:
  • Corporate Authors:

    Prestressed Concrete Institute

    20 North Wacker Drive
    Chicago, IL  United States  60606
  • Authors:
    • Tadros, M K
    • Ghali, A
    • Dilger, W
  • Publication Date: 1979

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 00314835
  • Record Type: Publication
  • Source Agency: Engineering Index
  • Files: TRIS
  • Created Date: Jul 22 1980 12:00AM