板件中间加劲的复杂卷边槽钢轴压构件弹性畸变屈曲应力的实用计算法  

A SIMPLIFIED METHOD FOR CALCULATING ELASTIC DISTORTIONAL BUCKLING STRESS OF CHANNELS WITH COMPLEX EDGE STIFFENERS AND INTERMEDIATE STIFFENERS UNDER AXIAL COMPRESSIVE LOAD

作　　者：王春刚[1] 张乃文[1] 马平[1] 

机构地区：[1]沈阳建筑大学土木工程学院,沈阳110168

出　　处：《工业建筑》2014年第5期116-121,共6页Industrial Construction

基　　金：国家自然科学基金项目(51008200);辽宁省高等学校优秀人才支持计划项目(LJQ2011059);沈阳市科技计划项目(F12-277-1-31)

摘　　要：为了研究板件中间加劲的复杂卷边槽钢轴压构件畸变屈曲临界应力的简便计算方法,应用有限条分析软件CUFSM对冷弯薄壁板件中间加劲的复杂卷边槽钢以及腹板中间V型加劲的复杂卷边槽钢共90个轴压构件进行数值模拟,分析各参数对构件弹性畸变屈曲临界应力的影响。经拟合分析,得出针对板件中间加劲的复杂卷边槽钢、腹板中间V型加劲的复杂卷边槽钢轴压构件的弹性畸变屈曲临界应力的简化计算公式,并验证该公式的有效性。In order to investigate the simplified calculative method of channels with complex edge stiffeners for the elastic distortional buckling stress under axial compressive load , a total of 90 cold-formed thin-walled steel channels with web stiffeners and complex edge stiffeners , channels with complex edge stiffeners and intermediate V type stiffeners in the web were analyzed by finite strip software CUFSM .The influence of the parameters for the elastic distortional buckling stress was analyzed .Simplified formulas for calculating the elastic distortional buckling stress of web stiffeners and complex edge stiffeners , channels with complex edge stiffeners and intermediate V type stiffeners in the web under axial compressive load were provided .The availability of the formulas was verified .

关 键 词：复杂卷边槽钢 轴压构件 中间加劲 稳定性能 畸变屈曲临界力 

分 类 号：TU392.1[建筑科学—结构工程]