Fatigue load spectra for bridges

Jeffrey A. Laman, Andrzej S. Nowak

Research output: Contribution to conferencePaper

Abstract

To effectively evaluate highway bridges, the load spectra experienced must be determined. A fatigue live load model has been developed for girder bridges which reflects site specific conditions. Five bridges were tested to determine site-specific truck parameters and component-specific stress spectra. The data base includes gross vehicle weight (GVW), axle weights and axle spacing as well as stress cycles in the bridge girders. The weigh-in-motion measurements confirm that truck loads are strongly site-specific. A dual fatigue truck model is proposed. The developed model is verified using fatigue damage analysis to compare the model to measured results and existing models.

Original languageEnglish (US)
Pages377-381
Number of pages5
StatePublished - Dec 1 1995
EventProceedings of the 1995 4th International Symposium on Heavy Vehicle Weights and Dimensions - Ann Arbor, MI, USA
Duration: Jun 25 1995Jun 29 1995

Other

OtherProceedings of the 1995 4th International Symposium on Heavy Vehicle Weights and Dimensions
CityAnn Arbor, MI, USA
Period6/25/956/29/95

All Science Journal Classification (ASJC) codes

  • Engineering(all)

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  • Cite this

    Laman, J. A., & Nowak, A. S. (1995). Fatigue load spectra for bridges. 377-381. Paper presented at Proceedings of the 1995 4th International Symposium on Heavy Vehicle Weights and Dimensions, Ann Arbor, MI, USA, .