Simplified Probabilistic Non-linear Assessment of Existing Railway Bridges

An aim of the European Commission's Sixth Framework Research Project, Sustainable Bridges, is to advance understanding of the behavior of existing railway bridges and develop tools to assess their ability to safely handle future traffic demands and extend their service lives. This paper presents findings of a study that reviews structural safety models applicable to the assessment of existing bridges. The study proposes the use of simplified probabilistic non-linear structural analysis methods to provide more accurate assessments of the load capacity of bridge systems than traditional methods. The simplified methods use the results of a limited number of deterministic non-linear structural analyses and apply these results into a reliability framework. The application of the proposed methods is illustrated by assessing the safety of an existing bridge. The accuracy and efficiency of the simplified methods are verified by comparing the results of the simplified methods to those obtained from full probabilistic non-linear analysis procedures.

  • Availability:
  • Supplemental Notes:
    • Abstract reprinted with permission from Taylor and Francis
  • Authors:
    • Wisniewski, Dawid F
    • Casas, Joan R
    • Ghosn, Michel
  • Publication Date: 2009-12

Language

  • English

Media Info

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Filing Info

  • Accession Number: 01146861
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Dec 22 2009 3:08PM