ANALYSIS AND DESIGN OF SKEW BOX GIRDER BRIDGES

A DETAILED PRESENTATION IS GIVEN OF THE REDUCTION, ANALYSIS AND INTERPRETATION OF THEORETICAL RESULTS OBTAINED USING A FINITE ELEMENT COMPUTER PROGRAM CELL TO ANALYZE A SERIES OF SINGLE SPAN, SIMPLY SUPPORTED, FOUR CELL, SKEW BOX GIRDER BRIDGES HAVING VARYING ANGLES OF SKEW AND SPAN LENGTHS. THESE THEORETICAL RESULTS ARE COMPARED WITH EXPERIMENTAL RESULTS FROM A PREVIOUS STUDY ON ALUMINUM MODEL BRIDGES OF IDENTICAL DIMENSIONS. THIS INVESTIGATION OF THE BEHAVIOR OF THE SKEW BOX GIRDER BRIDGES INCLUDES A STUDY OF REACTIONS, INTERNAL LONGITUDINAL STRESSES, EXTERNAL AND INTERNAL TOTAL SECTION MOMENTS, TRANSVERSE DISTRIBUTION OF THE TOTAL MOMENT TO EACH GIRDER, AND THE EFFECTS OF THE ADDITION OF A MIDSPAN DIAPHRAGM. BOTH POINT LIVE LOADS AND DEAD LOAD ON THE BRIDGES ARE CONSIDERED. ON THE BASIS OF THESE RESULTS, AN APPROXIMATE SIMPLIFIED METHOD OF ANALYSIS IS PROPOSED. FINALLY SOME TENTATIVE RECOMMENDATIONS FOR THE DESIGN OF SKEW BOX GIRDER BRIDGES ARE MADE. /NTIS/

  • Supplemental Notes:
    • Contract D-4-53
  • Corporate Authors:

    University of California, Berkeley

    Division of Structural Engineering and Structural Mechanics
    Berkeley, CA  United States  94720
  • Authors:
    • Comartin, C D
    • Scordelis, A C
  • Publication Date: 1972-12

Media Info

  • Pagination: 182 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00208102
  • Record Type: Publication
  • Source Agency: California Department of Transportation
  • Report/Paper Numbers: Interim
  • Files: TRIS, STATEDOT
  • Created Date: Jun 19 1974 12:00AM