A STUDY OF A THREE-SPAN CONTINUOUS BRIDGE STRUCTURE

THE BEHAVIOR IS DESCRIBED OF A THREE-SPAN CONTINUOUS STEEL STRINGER HIGHWAY BRIDGE WHILE BEING SUBJECTED TO STATIC AND MOVING LOADS. TWO VEHICLES WERE USED TO SUPPLY THE LOADS: AN APPROXIMATE HS20 TRACTOR-TRAILER OWNED BY THE BUREAU OF PUBLIC ROADS, AND AN EMPTY EUCLID TS-14 SCRAPER. STRAINS AND DEFLECTIONS WERE RECORDED AT MANY POINTS ON THE BRIDGE. A FINITE DIFFERENCE ANALYTICAL TECHNIQUE WAS MODIFIED TO FIT A THREE-SPAN CONTINUOUS STRUCTURE, AND COMPARISONS ARE MADE WITH THE EXPERIMENTAL RESULTS. CONCLUSIONS STATED ARE THAT THE ANALYTICAL AND EXPERIMENTAL COMPARISONS FOR THE BPR TEST VEHICLE WERE ACCEPTABLE, BUT THAT THE RESULTS WERE NOT SO GOOD WHEN THE EUCLID SCRAPER WAS USED. THE APPENDIXES PRESENT THE COMPUTER PROGRAMS USED IN THE ANALYSIS. /BPR/

• Supplemental Notes:
  • Hpr-pr-1(4), AW-69-64-46
• Corporate Authors:

  University of Maryland, College Park

  Department of Agricultural and Resource Economics
  College Park, MD  United States  20742

  Bureau of Public Roads /US

  400 7th Street, SW
  Washington, DC  United States  20590

  Maryland State Roads Commission

  ,    
• Authors:
  • Heins, C P
  • Sartwell, A D
  • Looney, C T
• Publication Date: 1968-6

Subject/Index Terms

• TRT Terms: Bridge superstructures; Computer programs; Continuous girder bridges; Deflection; Excavating equipment; Finite differences; Highway bridges; Motion; Motor vehicles; Steel; Strain measurement; Stringers; Tractor trailer combinations
• Uncontrolled Terms: Bridge spans; Moving vehicles; Scrapers (Construction equipment)
• Subject Areas: Bridges and other structures; Highways; Motor Carriers;

Filing Info

• Accession Number: 00207888
• Record Type: Publication
• Source Agency: Bureau of Public Roads /US
• Files: TRIS
• Created Date: Nov 29 1994 12:00AM