Typical thin-walled cold-formed steel (CFS) elements and connections used in portal frames are not generally suitable for moment-resisting high seismic regions due to their low ductility energy dissipation capacity inherited susceptibility local/global instabilities. This study aims improve the performance of CFS by developing a methodology obtain more efficient bolted moment using optimised be...

Angle sections are commonly designed to bear only axial force, usually neglecting the additional bending moments resulting from the eccentric connection and the shift of the effective centroid. The current work deals with the capacity of single-bolted equal angle sections made from cold-formed steel. The experimental investigation presented herein includes tension and compression tests that sub...

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...

Thin-walled cold-formed steel (CFS) structures are widely used in low-storey buildings and seeing increased applications multi-storey as well long-span structures. The bolted connection is one of the most common types fasteners employed CFS bolt slippage load-bearing mechanism connections have a significant influence on structural behaviour construction assemblies, which typically numerically s...

To study the cold-forming effect on yield strength distribution of cold-formed thick-walled steel, material tensile tests and axial compression were conducted steel-lipped channels. undertake tests, five types lipped channel sections with varied thicknesses nominal strengths selected. The test samples taken from web, flange, curled edge, corner sections, respectively. Next, a corresponding mode...

Load-bearing light gauge steel framed (LSF) wall is one of the main structural elements in cold-formed (CFS) buildings. When cavity insulation used to enhance energy performance LSF walls, their adequacy based fire resistance levels (FRL) decrease considerably. Hence, new materials and/or different configurations are considered. This research study investigated use silica aerogel fibreglass bla...

This paper presents the development of novel affordable steel-framed modular units for construction with enhanced overall (healthcare, structural, fire, and lightweight) performance, which ideally suits emergency response situation, such as current covid-19 pandemic. The nature quick well-prepared strategies are essential to cope demand quicker structures if similar situation continues or arise...