Effect of local instability on fire response of steel beams

Venkatesh Kodur and Mohannad Z. Naser

PSU Research Review, 2017, vol. 1, issue 2, 170-179

Abstract: Purpose - This purpose of this paper is to quantify the effect of local instability arising from high shear loading on response of steel girders subjected to fire conditions. Design/methodology/approach - A three-dimensional nonlinear finite element model able to evaluate behavior of fire-exposed steel girders is developed. This model, is capable of predicting fire response of steel girders taking into consideration flexural, shear and deflection limit states. Findings - Results obtained from numerical studies show that shear capacity can degrade at a higher pace than flexural capacity under certain loading scenarios, and hence, failure can result from shear effects prior to attaining failure in flexural mode. Originality/value - The developed model is unique and provides valuable insight (and information) to the fire response of typical hot-rolled steel girder subjected to high shear loading.

Keywords: Civil engineering; Structural engineering; Structural fire engineering and diagnostics (search for similar items in EconPapers)
Date: 2017
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Persistent link: https://EconPapers.repec.org/RePEc:eme:prrpps:prr-05-2017-0025

DOI: 10.1108/PRR-05-2017-0025

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