基于推覆分析的型钢混凝土构件塑性铰特性研究  

Research on the plastic hinge property of steel reinforced concrete members based on push-over analysis

作　　者：张淑云[1] 白国良[2] 赵来顺[1] 

机构地区：[1]西安科技大学,陕西西安710054 [2]西安建筑科技大学,陕西西安710055

出　　处：《土木工程学报》2010年第S1期113-117,共5页China Civil Engineering Journal

基　　金：国家自然科学基金(50578129);2010年陕西省教育厅专项科研项目(2010JK669)

摘　　要：推覆分析中的基本问题之一是如何描述各种构件的极限承载力或变形能力,针对型钢混凝土构件塑性铰本构关系的有效表述问题进行研究。在型钢混凝土梁截面弯矩-曲率关系的基础上,对构件弹塑性状态下截面曲率与转角关系进行推导,提出反映截面弯矩与转角关系的型钢混凝土梁铰特性值计算方法,并介绍型钢混凝土柱铰中弯矩-轴力关系的常用确定方法。根据型钢混凝土梁柱框支剪力墙结构模型试验结果,对提出的实用方法进行可行性验证。推覆分析与试验结果对比表明所提出的型钢混凝土构件塑性铰特性值的确定方法合理可行。How to describe the ultimate bearing capacity and deformation of various members is one of the basic issues in push-over analysis.The constitutive relationship for plastic hinge of steel reinforced concrete members is researched.On the basis of moment-curvature curve of steel reinforced concrete beams,the relationship between curvature and rotation at plastic state is derived,and the method specifying the plastic hinge property for reflecting relationship between moment and rotation of steel reinforced concrete beams has been proposed,and commonly used means calculating moment-axial force relationship are introduced.Based on the test results of shear wall supported frame with steel reinforced concrete,the feasibility of proposed practical method is verified.The results show that the proposed method to determine plastic hinge properties of steel reinforced concrete structures is feasible by comparison of the experiment and push-over analysis.

关 键 词：推覆分析 型钢混凝土构件 塑性铰特性 

分 类 号：TU398.9[建筑科学—结构工程]