混凝土框架结构非线性静力分析的随机模拟  

Random Simulation Study on Nonlinear Static Performance of Reinforced Concrete Frame Structure

作　　者：丁光莹[1] 李杰[1] 

机构地区：[1]同济大学建筑工程系,上海200092

出　　处：《同济大学学报（自然科学版）》2003年第4期389-394,共6页Journal of Tongji University:Natural Science

基　　金：国家自然科学基金资助项目 (19772 0 34 )

摘　　要：考虑结构材料本构模型参数的随机性 ,利用非线性Push over随机模拟方法对混凝土框架结构进行了非线性静力反应的随机模拟分析 .研究结果表明 :混凝土本构模型中的参数随机性对混凝土结构不同力学指标的反应进程均有十分显著的影响 .For reinforced concrete structures,system random parameters may bring about great influences on the nonlinear performance of structures.Concerning random parameters of the constitutive model of concrete materials,the main research results of the paper show that the mechanic performance of structure behaves greatly in variety.A duplicate stochastic simulation method is suggested for the construction of simulation samples of analytical structures.The stochastic structural Push-over simulation analysis method is put forward and various kinds of environmental variables in different simulation arithmetic mentioned above are deeply analyzed and studied.It is shown that the influences of three kinds of random parameters on different nonlinear performances of structure is quite different.And what's more,the likely destroying mechanism of the RC structures shows certain probability distributing.

关 键 词：混凝土框架结构 非线性静力分析 本构模型 非线性Push-over随机模拟 结构反应 

分 类 号：TU375.4[建筑科学—结构工程]