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Journal of Engineering Research

Journal of Engineering Research

Abstract

Steel girders with corrugated webs have been extensively researched and used in a variety of applications during the last few decades, including bridges and industrial buildings. Many studies explored the behavior of double symmetric girders with corrugated webs, but only a few articles used unequal flanges. Furthermore, the majority of research focuses on large-scale girders such as bridge girders, with just a few publications considering small-scale girders that may be employed in traditional construction applications. Additionally, performed investigations that consider the flexural behavior focused their studies on the effect of varying the dimensions of flanges without considering the effect of varying the properties of the corrugated web (CW) which also needed to be investigated. So, this article studies the effect of varying the properties of the corrugated web on the lateral torsional buckling behavior of small-scale unsymmetric or monosymmetric girders with corrugated webs (MSCWGs). A series of finite element models are conducted and verified using ABAQUS software package to perform a parametric study to investigate the effect of varying the thickness of the CW, the material properties of the web, the corrugation depth, and the corrugation profile on the behavior of MSCWGs. Finally, existing formulas to calculate the critical buckling moment of MSCWGs are examined and the conclusions of the performed study are summarized.

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