磁流变阻尼器受控RC框剪结构的计算模型及减震研究  

Calculation model and shock absorption study of the RC frame-shear wall structure with magnetorheological damper

作　　者：张香成[1] 徐宏辉 杨洋[1] 王自柯 Zhang Xiang-cheng;Xu Hong-hui;Yang Yang;Wang Zi-ke(School of Mechanics and Safety Engineering,Zhengzhou University,Zhengzhou 450001,China)

机构地区：[1]郑州大学力学与安全工程学院,河南郑州450001

出　　处：《工程抗震与加固改造》2023年第1期46-53,共8页Earthquake Resistant Engineering and Retrofitting

基　　金：中原科技创新领军人才计划(ZYQR201912029);河南省重点研发与推广专项(202102310239)资助项目。

摘　　要：为了分析加入磁流变阻尼器(MRD)框剪结构的多维减震性能,基于空间梁单元和壳单元建立了MRD受控框剪结构的三维计算模型。以6层钢筋混凝土(RC)框剪结构为例,采用MATLAB软件开发了未控和MRD受控RC框剪结构的三维计算模型程序,通过将模型程序计算结果与ANSYS软件建立的有限元模型计算结果进行对比,验证了模型及程序的有效性。在兰州波和唐山波作用下,对未控和MRD受控下结构的位移、加速度以及各层层间位移角进行计算。结果表明,未控和MRD受控RC框剪结构的三维计算模型程序能有效模拟结构的三维动力响应及减震效果,在整个地震波持时内,MRD受控RC框剪结构的位移响应均小于对应时间下未控结构的位移响应。In order to analyze the multi-dimensional earthquake mitigation performance of a frame-shear wall structure is Magnetorheological Damper(MRD),the three-dimensional calculation model of MRD controlled frame-shear wall structure is established based on space beam element and shell element.Taking a six-layer reinforced concrete(RC)frame-shear wall structure as an example,the three-dimensional calculation model programs of the RC frame-shear wall structure with and without MRD are developed by MATLAB software.By comparing the calculation results of the model program with the calculation results of the finite element model established by ANSYS software,the validity of the model and the program is verified.Under the action of Lanzhou wave and Tangshan wave,the displacement,acceleration and displacement Angle between layers under uncontrolled and MRD control are calculated.The results show that the three-dimensional calculation model program of uncontrolled and MRD controlled RC frame-shear wall structure can effectively simulate the three-dimensional dynamic response and shock absorption effect of the structure.During the entire duration of the seismic wave,the displacement response of the MRD controlled RC frame-shear wall structure is less than that of the uncontrolled structure at the corresponding time.

关 键 词：磁流变阻尼器 框剪结构 计算模型 多维减震 动力分析 

分 类 号：TU352.1[建筑科学—结构工程]