卷边C形截面不锈钢短柱承载力直接强度法  

Direct strength method of capacity of stainless steel lipped C section stub columns

作　　者：范圣刚[1,2] 郑宝锋[2] 刘美景[3] 刘芳[2] 陶玥林 

机构地区：[1]东南大学混凝土与预应力混凝土教育部重点实验室,南京210096 [2]东南大学土木工程学院,南京210096 [3]东南大学成贤学院土木工程系,南京210088

出　　处：《东南大学学报（自然科学版）》2014年第6期1246-1253,共8页Journal of Southeast University：Natural Science Edition

基　　金：国家自然科学基金资助项目(51378105);江苏省产学研前瞻性联合研究资助项目(BY2012200)

摘　　要：为了研究卷边C形截面不锈钢短柱承载力的计算方法,基于直接强度法,构建了轴心受压和两端受弯矩作用的不锈钢短柱承载力假定模型.结合已开展的38根卷边C形截面不锈钢短柱试验结果,通过参数化有限元分析,对98根轴心受压和94根偏心受压短柱试件进行了数值模拟分析,拟合出适用于卷边C形截面不锈钢短柱承载力的直接强度法计算公式.将拟合公式计算结果与试验结果进行对比分析,结果表明,拟合公式具有较高的精度,可以预测卷边C形截面不锈钢短柱的承载力.In order to study the calculation method for the capacity of stainless steel lipped C section stub columns,the hypothetical models for the capacity of stainless steel stub columns under axial compression and subjected to bending moments on both ends were built based on the direct strength method.Combined with the test results of 38 stainless steel lipped C section stub columns,the nu-merical simulation analysis was conducted on 98 axis compression and 94 eccentric compression stub column specimens by finite element parametric analysis.The calculation formulae based on the direct strength method were fitted out,which were then applied to the capacity of stainless steel lipped C section stub columns.The fitting results and the test results were compared and analyzed.The results show that the fitting formulae have high precision and can predict the capacity of stainless steel lipped C section stub columns.

关 键 词：不锈钢短柱 卷边C形截面 直接强度法 假定模型 

分 类 号：TU356[建筑科学—结构工程]