LATERAL DISTRIBUTION OF LOAD IN MULTIBEAM BRIDGES

A SUMMARY IS PRESENTED OF RESEARCH CONDUCTED ON THE LATERAL DISTRIBUTION OF LOAD IN MULTIBEAM BRIDGES. THIS TYPE OF BRIDGE IS CONSTRUCTED FROM PRECAST RECTANGULAR BEAMS MADE OF EITHER REINFORCED OR PRESTRESSED CONCRETE. THESE BEAMS ARE PLACED SIDE BY SIDE ON THE ABUTMENTS AND THE INTERACTION BETWEEN THE BEAMS IS DEVELOPED BY CONTINUOUS LONGITUDINAL SHEAR KEYS AND LATERAL BOLTS THAT MAY OR MAY NOT BE PRESTRESSED. THE INVESTIGATION INCLUDED A FIELD TEST, A THEORETICAL STUDY, AND A SERIES OF TESTS ON A LARGE-SCALE MODEL BRIDGE. THE THEORY OF ORTHOTROPIC PLATES WAS USED TO ANALYZE THE MULTI-BEAM BRIDGE. THE BENDING STIFFNESS IN THE LONGITUDINAL DIRECTION WAS CONSIDERED DIFFERENT FROM THE BENDING STIFFNESS IN THE LATERAL DIRECTION. THE STIFFNESS IN THE LATERAL DIRECTION IS DEPENDENT ON THE EFFICIENCY OF THE SHEAR KEYS AND LATERAL BOLTS. MEASURED DEFLECTION FROM TESTS WERE COMPARED WITH THE THEORETICAL CALCULATIONS. THE THEORY IS SHOWN TO YIELD A SOLUTION FOR THE DEFLECTION DISTRIBUTION WHICH AGREES VERY CLOSELY WITH THE EXPERIMENTAL RESULTS.

  • Record URL:
  • Supplemental Notes:
    • Distribution, posting, or copying of this PDF is strictly prohibited without written permission of the Transportation Research Board of the National Academy of Sciences. Unless otherwise indicated, all materials in this PDF are copyrighted by the National Academy of Sciences. Copyright © National Academy of Sciences. All rights reserved
  • Authors:
    • Hulsbos, C L
  • Conference:
  • Publication Date: 1962

Media Info

  • Media Type: Digital/other
  • Features: Figures; References;
  • Pagination: pp 67-79
  • Monograph Title: Bridge deck design and loading studies
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00208498
  • Record Type: Publication
  • Files: TRIS, TRB, ATRI
  • Created Date: Aug 5 1994 12:00AM