Effect of local instability on fire response of steel beams

PSU Research Review

Venkatesh Kodur¹ 

关键词: Civil engineering;    Structural engineering;    Structural fire engineering and diagnostics;   

DOI  :  10.1108/PRR-05-2017-0025

学科分类：社会科学、人文和艺术（综合）

来源: Emerald Publishing

【 摘 要 】

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.

【 授权许可】

CC BY