Numerical Investigations on Axial Compressive Behavior of Opening Cold-Formed Thin-Wall C-Steel Combined Double-Limb Column

To investigate the axial compressive behavior of an opening cold-formed thin-wall C-steel combined double-limb column, I-section columns were modeled in this paper, and models validated by experiments on axial-compressed columns. Parametric analyses carried out The effects slenderness ratio, height to thickness width bolt spacing, web ultimate bearing capacity investigated. It was observed that ratio had most significant column. Furthermore, formulas predicting Chinese AISI standards compared, accuracy studied. Afterward, with higher applicability for column proposed. compression stability factor reduction fitted paper. proposed factors can predict