基于ABAQUS的4种冷弯薄壁C形构件局部稳定性对比分析

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【中图分类号】：TU392.1 【文献标志码】：A 【文章编号】：1008-3197（2025）06-48-05

【DOI编码】：10.3969/j.issn.1008-3197.2025.06.011

Comparative Analysis of Local Stability of Four Cold-Formed ThinWalled C-Shaped Components Based on ABAQUS

WANG Mingtian

（Sichuan Changzheng Engineering Design Co.，Ltd.，Chengdu 61oooo，China）

【Abstract】：The finite element software ABAQUS is used to analyze the fourcross-sections of the ordinarycrimping member，the ordinary crimping member with flange stiffening，the complex crimping member with flange stifening，and thefailure modes and bending capacity of the four typesof members are obtained.The specific failure modes of the four types of members areanalyzed and compared，and theconclusion thatthestifening rib and secondary crimping can improve the deformation constraint and bearing capacityof the cold-formed thinwalled members is obtained.

【Key words】：sifeningrib；complex crimping；bending capacity；failure mode;coldformed thin wallC-shaped member

随着冷弯薄壁型钢构件强度的提升及工业需求上板厚进一步减小，截面设计愈发多样，而冷弯薄壁构件厚度较小在承受压力时往往容易屈曲失稳[～3]，因此稳定性的考量尤为关键[4-5]。（剩余3331字）