柔性节点框架结构的非线性动力反应分析  

NONLINEAR DYNAMIC RESPONSE ANALYSIS OF FRAMES WITH FLEXIBLE NODES

作　　者：张继承[1,2] 赵斌[1] 沈祖炎[1] 刘学剑[1] 

机构地区：[1]同济大学土木工程防灾国家重点实验室,上海200092 [2]长江大学城市建设学院,湖北荆州434102

出　　处：《钢结构》2009年第3期41-44,共4页Steel Construction

基　　金：欧盟第五框架资助项目(G6RD-CT-2002-00857);国家科技部国际合作重点资助项目(2003DF000018)

摘　　要：采用四参数Richard模型和Masing法则来模拟框架结构柔性节点非线性弯矩-转角关系的卸载和再加载部分,对柔性节点框架结构的非线性动力反应进行分析。研究结果表明:Richard模型和Masing法则可以很好地模拟柔性节点非线性弯矩-转角关系的卸载和再加载部分,适用于柔性节点框架结构的非线性动力分析;随着地震波峰值加速度的增大,滞回曲线所包围的面积也相应增大,节点表现出良好的耗能特性。The nonlinear dynamic response of frames with flexible nodes is analyzed by using a four parameters Richard model to simulate the nonlinear moment and rotation relationship of the nodes and Masing rule to simulate the unloading and reloading seismic behavior. The results indicate that Richard model and Masing rule is quite effective for simulating the unloading and reloading behavior of nonlinear moment and rotation relationship of the nodes, and it is suitable for the nonlinear dynamic response analysis of frames with flexible nodes. The areas of hysteretic curves are increased as the peak ground acceleration increasing, and the capacity of energy dissipation of the nodes is excellent.

关 键 词：柔性节点 Masing法则 结构反应 

分 类 号：TU391[建筑科学—结构工程]