LOADING HISTORY STUDY OF TWO HIGHWAY BRIDGES IN VIRGINIA

AN EVALUATION OF THE STRESS RANGES IN TWO TYPICAL HIGHWAY BRIDGE SPANS UNDER SERVICE LOADINGS WAS MADE. THE STRAINS AT SELECTED POINTS ON THE SUPERSTRUCTURE ELEMENTS OF THE SPANS WERE RECORDED CONTINUOUSLY FOR PERIODS OF FOUR AND FIVE DAYS UNDER NORMAL TRAFFIC CONDITIONS BY MEANS OF AN AUTOMATIC COMPUTER CONTROLLED DATA ACQUISITION SYSTEM, AND CONVERTED TO STRESS ON THE BASIS OF ASSUMED MODULI OF ELASTICITY. THE WEIGHTS, AXLE SPACINGS, AND LATERAL POSITIONS BY LANE OF TRUCKS CROSSING THE INSTRUMENTED SPANS DURING THE TEST PERIODS WERE ALSO RECORDED, TO THE DEGREE POSSIBLE. THE STUDY PROVED THE FEASIBILITY OF UTILIZING THE DATA ACQUISITION SYSTEM TO OBTAIN AN INDICATION OF THE SERVICE LIFE TO BE EXPECTED OF THE TEST STRUCTURES UNDER TODAY'S TRUCK TRAFFIC. A THEORETICAL CORRELATION BETWEEN THE RECORDED TRUCK CHARACTERISTICS AND THE MEASURED BRIDGE RESPONSE IS ALSO PRESENTED. /AUTHOR/

  • Record URL:
  • Supplemental Notes:
    • Vhrc 70-r48, 63 PP
  • Corporate Authors:

    Virginia Highway Research Council

    Charlottesville, VA  United States 
  • Authors:
    • McKeel, W T
  • Publication Date: 1971-6

Subject/Index Terms

Filing Info

  • Accession Number: 00209527
  • Record Type: Publication
  • Files: NTL, TRIS
  • Created Date: Oct 25 1971 12:00AM