Recent research on cold-formed steel beams and columns subjected to elevated temperature: A review

CFS members are more vulnerable to fire due to high section factor (fire-exposed area to the heated volume). Hence, an extensive review of experimental and numerical studies performed on CFS beams and columns at elevated temperatures is presented. Various types of buckling under different loading conditions and influence of different factors affecting the ultimate capacity and critical temperature of members are discussed. A comparison between different test methods and fire curves used around the world is presented. The research gaps as well as recommendations are also proposed. Conclusively, this review will provide basic data for the development of design codes.