Post-fire strength assessment of steel bridges based on residual out-of-plane web deformations

Jonathan D. Glassman, Maria Eugenia Moreyra Garlock

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Scopus citations

Abstract

Bridges that have been damaged (but have not collapsed) due to a fire pose a problem for engineers tasked with determining whether a damaged bridge may be re-opened for full or partial traffic, or must be demolished and rebuilt. Depending on the significance of the bridge, this decision carries heavy economic costs due to both the price of building a new bridge and the impact of an out-of-commission bridge may have on regional mobility. Steel plate girder bridges are particularly susceptible to damage during a fire event. Web shear buckling at elevated temperatures has been observed in some cases. The work presented in this paper focuses on the residual post-fire shear buckling strength of steel webs that have reached their ultimate buckling load due to these fire temperatures. This initial study has found that, for most span-to-depth ratios considered, the web still retains a considerable amount of the postbuckling shear strength capacity that it had before the fire event occurred.

Original languageEnglish (US)
Title of host publicationStructures Congress 2014 - Proceedings of the 2014 Structures Congress
EditorsGlenn R. Bell, Matt A. Card
PublisherAmerican Society of Civil Engineers (ASCE)
Pages335-344
Number of pages10
ISBN (Electronic)9780784413357
DOIs
StatePublished - Jan 1 2014
EventStructures Congress 2014 - Boston, United States
Duration: Apr 3 2014Apr 5 2014

Publication series

NameStructures Congress 2014 - Proceedings of the 2014 Structures Congress

Other

OtherStructures Congress 2014
CountryUnited States
CityBoston
Period4/3/144/5/14

All Science Journal Classification (ASJC) codes

  • Building and Construction
  • Civil and Structural Engineering

Keywords

  • bridge
  • fire
  • postbuckling shear strength
  • residual strength
  • steel plate girder
  • web shear buckling

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  • Cite this

    Glassman, J. D., & Garlock, M. E. M. (2014). Post-fire strength assessment of steel bridges based on residual out-of-plane web deformations. In G. R. Bell, & M. A. Card (Eds.), Structures Congress 2014 - Proceedings of the 2014 Structures Congress (pp. 335-344). (Structures Congress 2014 - Proceedings of the 2014 Structures Congress). American Society of Civil Engineers (ASCE). https://doi.org/10.1061/9780784413357.031