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(1 鄭州大學(xué)土木工程學(xué)院，鄭州 450001；2 鄭州大學(xué)力學(xué)與安全工程學(xué)院，鄭州 450001)

［摘要］配置高強(qiáng)筋材的混凝土剪力墻具有較高的承載力和較小的殘余變形，但其耗能性能較低。采用ABAQUS軟件建立了外置磁流變阻尼器（MRD）高強(qiáng)筋材混凝土剪力墻的有限元模型，計(jì)算分析了模型的滯回性能和破壞形態(tài)，通過(guò)將模型計(jì)算結(jié)果和試驗(yàn)結(jié)果進(jìn)行對(duì)比，證實(shí)了模型準(zhǔn)確可靠。改變模型中MRD的阻尼力和安裝高度，研究了構(gòu)件的滯回曲線、骨架曲線、耗能等抗震性能隨上述兩個(gè)參數(shù)的變化規(guī)律，結(jié)果表明：隨著MRD阻尼力的增大，試件的耗能能力以及承載能力均有所增強(qiáng)；隨著MRD安裝高度的增加，MRD對(duì)試件耗能能力和承載能力的增強(qiáng)作用越來(lái)越明顯。 

［關(guān)鍵詞］高強(qiáng)筋材； 剪力墻； 外置磁流變阻尼器； 抗震性能； 阻尼力； 安裝高度 

中圖分類號(hào)：TU375  文獻(xiàn)標(biāo)識(shí)碼：A文章編號(hào)：1002-848X(2021)12-0079-08

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

GUO  Xiaojing1,  ZHAO  Jun1,  ZHANG  Xiangcheng2,  LUO  Jing1 

(1 School of Civil Engineering, Zhengzhou University, Zhengzhou 450001， China；2 School of Mechanics and Safety Engineering, Zhengzhou University, Zhengzhou 450001,China) 

Abstract: 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. 

Keywords:high strength reinforcement； shear wall； external magnetorheological damper； seismic performance； damping force； mounting height

*國(guó)家重點(diǎn)研發(fā)計(jì)劃（2016YFE0125600），教育部創(chuàng)新團(tuán)隊(duì)支持計(jì)劃（IRT_16R67），中原千人計(jì)劃-中原科技創(chuàng)新領(lǐng)軍人才（ZYQR201912029）。

 作者簡(jiǎn)介：郭曉婧，碩士研究生，Email:gxj15737193328@163.com；通信作者：趙軍，博士，教授，博士生導(dǎo)師，Email:zhaoj@zzu.edu.cn。