ANALYSIS OF CURVED, PRESTRESSED, SEGMENTAL BRIDGES

A method for the time-dependent analysis of curved, concrete box-girder bridges with nonprismatic cross section has been developed. The bridge can consist of precast segments, cast-in-place segments or any other form of staged or conventional construction. Time-dependent effects allowed for are creep and shrinkage of concrete, changes in material properties, temperature variations, and relaxation of prestressing steel. A computer program was developed to carry out the analysis. Input consists of a description of the bridge geometry, prestressing tendon details, material data, environmental data, and the construction sequence. Results are plotted for two examples. In the first, the axial stress of a curved bridge is compared with experimental results. In the second, the deflection history of a segmentally erected bridge is compared to experimental results.

  • Corporate Authors:

    American Society of Civil Engineers

    345 East 47th Street
    New York, NY  United States  10017-2398
  • Authors:
    • van Zyl, S F
    • Scordelis, A C
  • Publication Date: 1979-11

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 00310361
  • Record Type: Publication
  • Source Agency: Engineering Index
  • Files: TRIS
  • Created Date: Jun 9 1980 12:00AM