Bridge Capacity Assessment and Control of Posting, Permit and Legal Vehicle Loads

  • Fred Moses


Several recent projects conducted by the author have concerned new methods for bridge evaluation, including strength capacity and safe life assessment. These projects have led to new AASHTO proposals for capacity evaluation and flexible methods for regulating safe loads on bridges. Economic pressure to revise truck weight regulations have also been considered. Proposals for evaluating permit trucks for different highway classifications have been reported. A comprehensive study of optimal truck weight regulations to balance vehicle productivity with increased costs for bridge repairs and replacement have been studied. These projects have been supported by the US Transportation Research Board and various state agencies.


Fatigue Life Heavy Vehicle Target Reliability Steel Bridge Span Bridge 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.


  1. 1.
    Manual of Maintenance Inspection of Bridges. American Association of State Highway Transportation Officials, Washington, DC, 1982.Google Scholar
  2. 2.
    Ontario Highway Bridge Design Code. Ontario Ministry of Transportation and Communication, Downsview, Ontario, Canada, 1983.Google Scholar
  3. 3.
    Moses, F., Ghosn, M. and Gobieski, J., Evaluation of steel bridges using in-service testing. Presented at TRB Annual Meeting, Washington, DC, January 1986. Published in Transportation Research Record 1072, Washington, DC.Google Scholar
  4. 4.
    Bakht, B. and Csagoly, P. F., Diagnostic testing of a bridge. ASCE Journal of Structural Engineering, 106 (7) (July 1980).Google Scholar
  5. 5.
    Moses, F. and Verma, D., Load capacity evaluation of existing bridges. NCHRP Report 301, NCHRP 12–28(1) Final Report, Transportation Research Board, Washington, DC, December 1987.Google Scholar
  6. 6.
    Verma, D. and Moses, F., Calibration of a bridge strength evaluation code. ASCE Journal of Structural Engineering, 115(6) (June 1989).Google Scholar
  7. 7.
    Guide Specification for Strength Evaluation of Existing Steel and Concrete Bridges. AASHTO, Washington, DC, 1989.Google Scholar
  8. 8.
    Ghosn, M. and Moses, F., A reliability calibration of a bridge design code. ASCE Journal of Structural Engineering, 112(3) (1986).Google Scholar
  9. 9.
    Moses, F., Schilling, C. G. and Raju, K. S., Fatigue evaluation procedures for steel bridges. NCHRP Report 299, Transportation Research Board, Washington, DC, November 1987.Google Scholar
  10. 10.
    Moses, F, Schilling, C. G. and Raju, K. S., Reliability-based bridge life assessment. ICCOSAR’ 89, San Francisco, May 1989.Google Scholar
  11. 11.
    Guide Specification for Fatigue Evaluation of Existing Steel Bridges, approved by AASHTO, Washington, DC, 1989.Google Scholar
  12. 12.
    Moses, F. and Fu, G., A reliability analysis of permit loads on bridges. In progress, report to Ohio Department of Transportation, Case Western Reserve University.Google Scholar
  13. 13.
    Moses, F., Effects on bridges of alternative truck configurations and weights. In progress, National Academy of Science, Transportation Research Board.Google Scholar
  14. 14.
    Ghosn, M., Bridge overstress criteria. In progress, sponsored by Federal Highway Administration at City University of New York.Google Scholar

Copyright information

© Springer Science+Business Media Dordrecht 1990

Authors and Affiliations

  • Fred Moses
    • 1
  1. 1.Department of Civil EngineeringCase Western Reserve UniversityClevelandUSA

Personalised recommendations