组合截面压杆的受力性能  

Research on the Combination of Cross-section of Column with Axial Compression Stress

作　　者：傅光远[1,2] 张扬[1,2] 李四平[1,2] 

机构地区：[1]上海交通大学船舶海洋与建筑工程学院,上海200240 [2]南阳理工学院土木工程系,河南南阳473004

出　　处：《上海交通大学学报》2013年第2期216-219,225,共5页Journal of Shanghai Jiaotong University

基　　金：国家自然科学基金项目资助(50978162)

摘　　要：研究组合截面短柱轴心受压的截面应力和紧箍力分布规律.通过理论计算模型推导了组合截面圆柱应力分布的解析解;建立了有限元数值分析模型,考虑材料泊松比、管壁壁厚等参数的变化,验证了圆形截面应力分布的解析结果,并得到了方形截面应力分布的规律和存在有效约束区的特点,为组合结构构件的受力性能分析提供理论依据.This paper analyzed the distribution of combined cross-section of short column with axial compression stress and contact stress.The analytic solution of combination of cross-section of short circular column was derived first and validated by numerical simulation,considering the material＇s Poisson ratio,wall thickness and other changes of parameters.Then the paper analyzed the square cross-section with more material of column based on the circular research,providing theoretical basis for analysis of combined structure under certain force.

关 键 词：平面应变 组合截面 轴压 紧箍力 

分 类 号：TU398[建筑科学—结构工程]