外置磁流变阻尼器高强筋材混凝土剪力墙抗震性能研究  

Study on seismic behavior of high strength reinforced concrete shear wall with external magnetorheological damper

作　　者：郭晓婧 赵军[1] 张香成[2] 罗京 GUO Xiaojing;ZHAO Jun;ZHANG Xiangcheng;LUO Jing(School of Civil Engineering,Zhengzhou University,Zhengzhou 450001,China;School of Mechanics and Safety Engineering,Zhengzhou University,Zhengzhou 450001,China)

机构地区：[1]郑州大学土木工程学院,郑州450001 [2]郑州大学力学与安全工程学院,郑州450001

出　　处：《建筑结构》2021年第12期79-86,共8页Building Structure

基　　金：国家重点研发计划(2016YFE0125600);教育部创新团队支持计划(IRT_16R67);中原千人计划-中原科技创新领军人才(ZYQR201912029)。

摘　　要：配置高强筋材的混凝土剪力墙具有较高的承载力和较小的残余变形,但其耗能性能较低。采用ABAQUS软件建立了外置磁流变阻尼器(MRD)高强筋材混凝土剪力墙的有限元模型,计算分析了模型的滞回性能和破坏形态,通过将模型计算结果和试验结果进行对比,证实了模型准确可靠。改变模型中MRD的阻尼力和安装高度,研究了构件的滞回曲线、骨架曲线、耗能等抗震性能随上述两个参数的变化规律,结果表明:随着MRD阻尼力的增大,试件的耗能能力以及承载能力均有所增强;随着MRD安装高度的增加,MRD对试件耗能能力和承载能力的增强作用越来越明显。The concrete shear wall with high strength reinforcement has higher bearing capacity and smaller residual deformation,but its energy dissipation performance is low.The finite element model of high strength reinforced concrete shear wall with external magnetorheological damper(MRD)was established by ABAQUS software,and the hysteretic behavior and failure mode of the model were calculated and analyzed.By comparing the calculation results of the model with the experimental results,the accuracy and reliability of the model were verified.By changing the damping force and mounting height of MRD in the model,the law of the hysteretic curve,skeleton curve and energy dissipation of the component were studied with the above two parameters.The results show that with the increase of the damping force of MRD,the energy dissipation capacity and bearing capacity of the specimen are enhanced.With the increase of the mounting height of MRD,the effect of MRD on the energy dissipation capacity and bearing capacity of the specimen becomes more and more obvious.

关 键 词：高强筋材 剪力墙 外置磁流变阻尼器 抗震性能 阻尼力 安装高度 

分 类 号：TU375[建筑科学—结构工程]