华东交通大学学报2024，Vol.41Issue(3)：10-19,10.
锈蚀冷弯薄壁型钢柱弹性整体屈曲分析
Elastic Overall Buckling Analysis of Corroded Cold-Formed Thin-Walled Steel Columns
摘要
Abstract
[Objective]The overall elastic buckling performance of corroded cold-formed thin-walled steel col-umns was investigated in this paper.[Method]The finite element eigenvalue buckling analysis method was used to study the effects of corrosion location,corrosion area length and width on the elastic overall buckling of cold-formed thin-walled steel columns.The calculation method for the elastic overall buckling stress of corroded cold-formed thin-walled steel columns was proposed,and the theoretical calculation results were compared with the fi-nite element eigenvalue buckling analysis values.[Result]The results show that as the degree of corrosion in-creased,the elastic bending buckling stress and the elastic bending torsional buckling stress gradually decreased.The effect of web corrosion on elastic bending buckling stress was greater than that of flange corrosion,while the effect of web corrosion and flange corrosion on elastic bending torsional buckling stress was similar.The elastic bending buckling stress gradually decreased with the increase of the corrosion area length,and the rate of de-crease showed a decreasing trend.However,the elastic bending torsional buckling stress approximately linearly decreased with the increase of the corrosion area length.[Conclusion]With the increase of the corrosion area width,the elastic bending torsional buckling stress decreased faster than the elastic bending buckling stress.关键词
锈蚀/冷弯薄壁型钢/整体屈曲/有限元分析/弹性Key words
corrosion/cold-formed thin-walled steel/overall buckling/finite element analysis/elastic分类
建筑与水利引用本文复制引用
聂彪,徐善华,陈华鹏,胡伟成,肖林发..锈蚀冷弯薄壁型钢柱弹性整体屈曲分析[J].华东交通大学学报,2024,41(3):10-19,10.基金项目
国家自然科学基金项目(52308313,52208168) （52308313,52208168）
江西省自然科学基金项目(20224BAB214067) （20224BAB214067）
中国博士后科学基金资助项目(2023M741161) （2023M741161）
江西省重点研发计划项目(20223BBH80002) （20223BBH80002）
