高强钢筋高强混凝土柱的非线性数值分析  

Nonlinear Numerical Analysis on High-Strength Concrete Columns Reinforced by High-Strength Steel Rebar

作　　者：阎石[1] 季保建[1] 陈鑫[1,2] 

机构地区：[1]沈阳建筑大学土木工程学院,辽宁沈阳110168 [2]大连理工大学土木水利学院,辽宁大连116024

出　　处：《沈阳建筑大学学报（自然科学版）》2010年第2期244-249,共6页Journal of Shenyang Jianzhu University：Natural Science

基　　金：辽宁省自然科学基金项目(20052005)

摘　　要：目的研究配有高强钢筋的高强混凝土柱的抗震性能.方法采用OpenSees开放式软件对配有高强钢筋的高强混凝土柱进行非线性有限元分析,并将计算结果与同等参数条件下的拟静力试验进行了对比.对影响柱子延性的主要因素进行了Pushover分析.结果得到方型截面试件和圆型截面试件的滞回曲线、位移延性系数、屈服位移、屈服力和最大抗力,数值分析和试验结果吻合程度较好,还得出了轴压比、含箍特征值、纵筋对柱子延性的影响.结论利用基于OpenSees的有限元分析方法,能够有效地对配有高强钢筋的高强混凝土柱构件进行抗震性能的非线性分析.可以辅助性地利用OpenSees研究该类型构件的抗震性能.The paper presents a numerical method for seismic performances of concrete columns reinforced by high-strength rebar. The OpenSees software is used for the finite element analysis and a compare study between the results of experiments and numerical simulation. The seismic performance such as the hysteresis loop, displacement ductility coefficient, yield displacement, yield force and the largest resistance of every column are obtained, and the numerical analysis and the test results matched well. The results of the numerical simulation show that the OpenSees can be effectively used to research seismic performance of high-strength concrete columns reinforced by high-strength bars, and it can be used as an auxiliary tool to study the seismic performance of this kind of structural components.

关 键 词：高强钢筋高强混凝土柱 OpenSees软件 非线性数值分析 延性 

分 类 号：TU352.1[建筑科学—结构工程]