EFFECT OF TRUCK LOADING ON BRIDGES. FIRST DRAFT REPORT

A procedure for evaluation of live load spectra on highway bridges was developed and tested, and a weigh-in-motion (WIM) measurement system was calibrated during field testing on three Michigan bridges. Other equipment considered in this project included electronic theodolite, fleximeter, and Culway system. The project deals with experimental and analytical parts and the live load model was developed on the basis of WIM measurements, truck counts, truck surveys, and statistical analysis. There is a considerable difference between the results of truck surveys using weigh stations and WIM. For a large number of trucks on I-94 gross vehicle weight exceeds 200,000 lb. The evaluation procedure for corroded bridges is developed using sensitivity functions relating the load carrying capacity, corrosion patterns, and material loss. Fatigue analysis is further focused on the estimation and prediction of live load spectra. Structural behavior depends on load frequency and magnitude. Therefore fatigue load spectra are determined using the results of WIM measurements, truck survey data, and truck counts.

• Supplemental Notes:
  • This study was funded by the Michigan Department of Transportation and by a grant from the U.S. Department of Transportation's University Transportation Centers Program.
• Corporate Authors:

  University of Michigan, Ann Arbor

  Department of Civil and Environmental Engineering, Brown Building
  2355 Hayward Street
  Ann Arbor, MI  United States  48109-2125
• Authors:
  • Nowak, A S
  • Nassif, H
• Publication Date: 1991-6

Language

• English

Media Info

• Features: Appendices; Figures; References; Tables;
• Pagination: 177 p.

Subject/Index Terms

• TRT Terms: Axle load force; Bridges; Corrosion; Field tests; Gross vehicle weight; Highway bridges; Live loads; Load limits; Oversize loads; Overweight loads; Trucks; Weigh in motion
• Uncontrolled Terms: Fatigue analysis; Load carrying capacity
• Old TRIS Terms: Truck effects (Bridges)
• Subject Areas: Bridges and other structures; Design; Highways; Motor Carriers; I24: Design of Bridges and Retaining Walls;

Filing Info

• Accession Number: 00674256
• Record Type: Publication
• Report/Paper Numbers: GLCTTR 12/91-03, UMCE 91-11
• Files: TRIS
• Created Date: Feb 9 1995 12:00AM