BOX GIRDERS MODEL STUDIES VOLUME I

A FULL-SIZE, REINFORCED CONCRETE, BOX GIRDER BRIDGE, WITH AN EIGHTY-FOOT SPAN, AND A QUARTER-SCALE MODEL OF THE SAME WERE INSTRUMENTED AND TESTED. ANALYSIS OF PROTOTYPE DATA WERE DISCUSSED PRIOR TO WRITING OF GENERALIZED COMPUTER PROGRAMS FOR BOX GIRDER ANALYSIS, BASED ON A DIRECT STIFFNESS APPLICATION OF THE GOLDBERG-LEVE FOLDED PLATE EQUATIONS. THIS PAPER AUGMENTS THE SCOPE OF PROTOTYPE ANALYSES, DISCUSSES MODEL TEST DATA, AND ESTABLISHES THREE-WAY CORRELATIONS AMONG PROTOTYPE AND MODEL DATA AND THEORETICAL ANALYSES. EFFECTS OF MODEL STRAIN HISTORY FROM THE TIME OF POURING UNTIL DEAD LOAD WAS APPLIED ARE CONSIDERED. ADDITIONAL STUDIED ARE MADE OF TRANSVERSE DISTRIBUTIONS OF LIVE LOAD RESISTING MOMENTS TO PROTOTYPE STRINGERS, INCLUDING EFFECTS OF AN INTERMEDIATE DIAPHRAGM AND BARRIER RAILINGS ON THOSE DISTRIBUTIONS. SIMILAR STUDIES ARE MADE OF THE MODEL TO ASSESS THE DEGREE TO WHICH ITS BEHAVIOR SIMULATED THAT OF THE PROTOTYPE. MODEL BEHAVIOR UNDER A SIMULATED PROTOTYPE DEAD LOAD IS CONSIDERED. THREE-WAY CORRELATIONS OF RESISTING MOMENT DISTRIBUTIONS ARE VERY GOOD. THE THEORY EXAGGERATED SLIGHTLY THE INFLUENCE OF THE DIAPHRAGM BY ASSUMING IT TO BE RIGID. INFLUENCE OF THE BARRIER CURBS WAS ACCURATELY ASSESSED. THEORETICAL TRANSVERSE STRAIN DISTRIBUTIONS DID NOT ALWAYS AGREE WITH THOSE OBSERVED. /AUTHOR/

  • Supplemental Notes:
    • Volume II is PB 196046.
  • Corporate Authors:

    University of California, Berkeley

    Berkeley, CA  USA  94720

    California Division of Highways

    Bridge Department
    Sacramento, CA  USA  05914

    Federal Highway Administration

    1200 New Jersey Avenue, SE
    Washington, DC  USA  20590
  • Authors:
    • Davis, R E
    • Scheffey, C F
  • Publication Date: 1970-4

Subject/Index Terms

Filing Info

  • Accession Number: 00207968
  • Record Type: Publication
  • Source Agency: Federal Highway Administration
  • Report/Paper Numbers: D-4-4
  • Files: TRIS, USDOT
  • Created Date: Nov 18 1970 12:00AM