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 ...

Background: The seismic retrofitting of frame structures using hysteretic dampers is a very effective strategy to mitigate earthquake-induced risks. However, its application in current practice rather limited since simple and efficient design methods are still lacking, the more accurate time-history analysis time-consuming computationally demanding. Aims: This paper develops applies retrofit me...

The use of buckling restrained braces (BRBs) represents one the best solutions for retrofitting or upgrading numerous existing reinforced concrete framed buildings in areas with a high seismic hazard. This study investigates effectiveness BRBs retrofit (RC) masonry infills. For this purpose, an advanced non-linear three-dimensional model building L'Aquila is developed OpenSees, by accounting ef...

It is well known that the current design rules adopted by international codes such as ISO 14346 and guides, e.g., CIDECT guide No. 3, for chord sidewall failure in mild steel rectangular hollow section (RHS) joints under brace axial compression are considerably conservative, if RHS adequately supported out-of-plane. This paper presents an investigation into using grades up to S960. Representati...

This paper presents an analytical method to calculate the buckling stress of a rectangular thin plate under nonuniform applied axial stresses. Two cases are considered, buckling of a plate simply supported on all four sides and buckling of a plate simply supported on three sides with one unloaded edge free and the opposite unloaded edge rotationally restrained. These two cases illustrate the in...