基于OpenSees人字和X型支撑加固RC框架抗震性能非线性分析  

Nonlinear analysis for the seismic performance of RC frame supported by herringbone and X-braces based on OpenSees

作　　者：王新玲[1] 张惠[1] 黄伟东 朱俊涛[1] 

机构地区：[1]郑州大学土木工程学院,河南郑州450001 [2]郑州市市政工程管理处,河南郑州450002

出　　处：《世界地震工程》2014年第3期143-149,共7页World Earthquake Engineering

基　　金：河南省重点科技攻关项目(132102310277)

摘　　要：为了研究不同支撑形式对开洞框架结构加固抗震性能的影响,以人字支撑加固框架结构的水平低周反复试验为基础,采用抗震性能分析软件OpenSees,分别对采用人字形、X形和局部人字形支撑加固的开洞框架结构进行了模拟地震作用的非线性数值分析,通过对不同形式支撑加固框架的滞回曲线和骨架曲线比较分析,结果表明:数值分析结果与试验结果吻合较好,采用不同形式支撑加固后,框架的开裂荷载、屈服荷载和极限荷载得到不同程度的提高,其中人字支撑加固效果最好,局部人字支撑加固效果次之。In order to study the influence of different brace forms on the seismic performance of reinforced RC frame with open hole, the nonlinear numerical analysis of the RC frame reinforced by the RC brace with the forms of herringbone, X and local herringbone under simulated earthquake action were carried out by using Seismic performance analysis software OpenSees and in the basis of low cycle test of the RC frame reinforced with herringbone brace. The comparative analysis of the hysteretic curve and skeleton curve show that the numerical analysis results and experimental results are in good agreement, and the cracking load, yield load and ultimate load of the reinforced experiments are in different degrees of improvement, in which the herringbone brace reinforcement effect is best, then is the local herringbone brace.

关 键 词：OPENSEES 支撑加固 抗震性能 低周反复荷载试验 

分 类 号：TU599[建筑科学—建筑技术科学]