带腹板加劲肋高强薄壁钢柱局部稳定研究  

LOCAL BUCKLING OF THIN-WALLED HIGH STRENGTH STEEL COLUMNS WITH WEB STIFFENERS

作　　者：王晓建[1] 程光明 陈哲[1] 陈驹[2] 郭勇 WANG Xiaojian;CHENG Guangming;CHEN Zhe;CHEN Ju;GUO Yong(State Grid Zhejiang Electric Power Company, Hangzhou 310007, China;College of Civil Engineering and Architecture, Zhejiang University, Hangzhou 310058, China;China Energy Engineering Group Zhejiang Electric Power Design Institute Co. Ltd, Hangzhou 310012, China)

机构地区：[1]国网浙江省电力公司,杭州310007 [2]浙江大学建筑工程学院,杭州310058 [3]中国能源建设集团浙江省电力设计院有限公司,杭州310012

出　　处：《工业建筑》2018年第4期126-129,共4页Industrial Construction

摘　　要：为提高局部稳定承载力,提出了带腹板加劲肋的高强薄壁钢柱的截面型式,并对于不同截面型式的短柱试件进行了轴压试验。同时建立了有限元模型并与试验结果相验证,基于试验结果和有限元分析研究了试件的局部稳定。分析了现有直接强度法设计公式对于该类型截面柱的适用性。结果表明：直接强度法低估了腹板加颈肋的作用。To enhance the local stability bearing capacity,a new section type of thin-walled high strength steel column with web stiffeners was proposed. Short column specimens with different section types were tested. The finite element model was developed and verified by test results. The local stability of the thin-walled high strength steel column with web stiffeners was analyzed based on test results and finite analysis results. The applicability of current direct strength method（DSM） for thin-walled high strength steel column with web stiffeners was evaluated. The results showed that DSM underestimated the effect of web stiffeners.

关 键 词：高强钢材 薄壁构件 腹板加劲肋 局部屈曲 

分 类 号：TU392.1[建筑科学—结构工程]