FIELD TESTS OF A CONTINUOUS TWIN GIRDER STEEL BRIDGE

The structural behavior of a twin girder continuous steel bridge was studied in the field to provide data for a fatigue evaluation of the structure. Girder strains and deflections were measured under normal traffic and with a 52,000-lb test truck traveling at various speeds up to 50 mph using high-speed data acquisition equipment. An analysis of the data showed a maximum flange stress range of 3.1 ksi due to the test truck. A structural analysis of the bridge gave theoretical results which were within 10 percent of the measured flange stresses. Experimental data with the truck at high speed were more reliable than data with the truck stationary. (FHWA)

• Corporate Authors:

  University of Texas, Austin

  Center for Transportation Research, 3208 Red River Street
  Austin, TX  United States  78705

  Federal Highway Administration

  1200 New Jersey Avenue, SE
  Washington, DC  United States  20590
• Authors:
  • Yura, J A
  • Frank, K H
  • Gupto, A K
• Publication Date: 1981-12

Media Info

• Pagination: 126 p.

Subject/Index Terms

• TRT Terms: Continuous structures; Deflection; Fatigue (Physiological condition); Field tests; Flanges; Girder bridges; Strain (Mechanics); Stresses; Structural analysis; Structural mechanics; Traffic; Trucks
• Uncontrolled Terms: Structural behavior
• Old TRIS Terms: Strains
• Subject Areas: Bridges and other structures; Design; Highways; Motor Carriers; Operations and Traffic Management; I24: Design of Bridges and Retaining Walls;

Filing Info

• Accession Number: 00349166
• Record Type: Publication
• Report/Paper Numbers: FHWA/TX-81/38+247-2 Intrm Rpt., FCP 45L3-052
• Contract Numbers: 3-5-79-247
• Files: TRIS, USDOT
• Created Date: Jun 30 1982 12:00AM