THE EFFECT OF LOADING ON BRIDGE LIFE

RESULTS ARE PRESENTED OF AN INVESTIGATION INVOLVING THE MEASUREMENT OF STRAINS PRODUCED BY TRUCK TRAFFIC ON EIGHT SELECTED HIGHWAY BRIDGES. THE DEVELOPMENT OF A SAMPLING PROCEDURE IS DESCRIBED ALONG WITH THE INSTRUMENTATION USED. RESULTS ARE PRESENTED IN THE FORM OF STRESS - FREQUENCY DISTRIBUTIONS, AND ARE COMPARED WITH THE COMMERCIAL TRUCK TRAFFIC VOLUMES AND GROSS WEIGHTS. SOME STUDIES INVOLVING LOADING WITH A CONTROLLED TEST VEHICLE ARE ALSO REPORTED. BASED ON CERTAIN ASSUMPTIONS AND RESULTS OF LABORATORY STRUCTURAL FATIGUE TESTS BY OTHERS, THE LIFE EXPECTANCY OF EIGHT BRIDGES IS DETERMINED. THE MAJOR CONCLUSION IS THAT APPARENTLY THERE IS NO GREAT DANGER OF FATIGUE DAMAGE TO THE BRIDGES TESTED UNDER LOADINGS PRESENTLY ALLOWED IN MICHIGAN. /BPR/

• Supplemental Notes:
  • Hpr-1/4/ii, BPR-62-F-71
• Corporate Authors:

  Michigan Department of State Highways

  State Highways Building, PO Drawer K
  Lansing, MI  United States  48904
• Authors:
  • Cudney, G R
• Publication Date: 1967-9

Subject/Index Terms

• TRT Terms: Deformation curve; Fatigue tests; Gross weight; Highway bridges; Loads; Sampling; Strain measurement; Traffic volume; Trucks
• Uncontrolled Terms: Loading
• Subject Areas: Bridges and other structures; Highways; Motor Carriers;

Filing Info

• Accession Number: 00207849
• Record Type: Publication
• Source Agency: Bureau of Public Roads /US
• Files: TRIS, STATEDOT
• Created Date: Jan 16 1994 12:00AM