Few studies have investigated the structural behavior of steel-concrete composite alveolar beams in hogging bending regions. Their resistance can be reached by lateral distortional buckling (LDB), coupling LDB and local failure modes, or limit states cracking crushing concrete slab. This case is characteristic continuous cantilever elements. Another critical issue that design calculation recomm...

A parametric optimization problem of cross-sectional sizes for cold-formed steel lipped channel structural members subjected to axial compression has been considered by the paper. An is formulated as define optimum member taking into account post-buckling behavior (web and flange local distortional buckling) well requirements when profile perimeter (strip width), thickness, design lengths mater...

Cold-formed steel members are usually used as purlins in buildings to support roof cladding and thus they can be treated beams restrained fully or partially the lateral torsional directions. However, when these subjected wind suction loading, their free flange is compression, which may cause web–flange distortional buckling (WFDB). This paper presents an analytical study on WFDB of zed-section ...

Abstract The proposed method focuses on the interaction of global and local buckling. A modified Ayrton‐Perry type buckling curve is to calculate ultimate compression force resistance centrically compressed cold‐formed C channel. new incorporates both effects imperfections shift center gravity caused by slender web plate considered sections. Distortional usually does not play any role for this ...