BUCKLING CAPACITY OF STEEL MEMBERS WITH UNIFORM AND NON-UNIFORM ELEVATED TEMPERATURES PART 2: DIRECT

• 作 者: CHENJi;
• 机 构: School of Civil Engineering, Xi'an University of Architecture & Technology, Xi'an 710055, China
• 出 处: 中国钢结构协会结构稳定与疲劳分会第14届(ISSF-2014)学术交流会暨教学研讨会
• 发表日期: 2014年期

　　The flexural-torsional buckling behavior of cold-formed steel beams is very complicated at elevated temperatures and a good understanding and knowledge of the topic is very necessary.Although considerable research has been conducted on the flexural-torsional buckling behavior of hot-rolled steel members and stainless steel beams at elevated temperatures, It is necessary to study the cold-formed steel members at uniform and non-uniform elevated temperature.The Direct Strength Method (DSM) may be to calculate the distortional buckling strength of steel cold-formed thin-walled (CF-TW) members with uniform and non-uniform elevated temperature distributions.The assessment is carried out by checking the DSM calculation results with numerical simulation results.This paper proposes a modification to the distortional buckling curve to enable DSM to deal with distortional buckling.in columns with non-uniform temperature distributions.