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（鄭州大學(xué)土木工程學(xué)院， 鄭州 450001）

［摘要］為了研究暗柱中的高強(qiáng)筋材類型對(duì)剪力墻抗震性能的影響，完成了2片暗柱內(nèi)配置鋼鉸線剪力墻和2片暗柱內(nèi)配置碳纖維復(fù)合材料（CFRP筋）剪力墻的水平低周反復(fù)加載試驗(yàn)，對(duì)比研究了4片剪力墻在0.17和0.26兩種軸壓比下的破壞形態(tài)、滯回性能、承載力、骨架曲線、剛度退化、耗能能力以及自復(fù)位能力。結(jié)果表明：暗柱內(nèi)配置鋼絞線剪力墻的受壓破壞區(qū)域較配置CFRP筋剪力墻大2倍左右，兩者在破壞形態(tài)上的差異受軸壓比影響不大；暗柱內(nèi)配置鋼鉸線剪力墻的承載力比暗柱內(nèi)配置CFRP筋剪力墻的高，在兩種軸壓比下的極限側(cè)向變形也大；軸壓比對(duì)暗柱內(nèi)配置鋼絞線剪力墻和CFRP筋剪力墻的能量耗散系數(shù)影響較大；所有剪力墻在大變形下均具有較好的自復(fù)位能力，配置CFRP筋剪力墻的殘余變形相對(duì)較小。

［關(guān)鍵詞］暗柱；  剪力墻； 抗震性能； CFRP筋； 鋼絞線； 自復(fù)位

中圖分類號(hào)：TU375文獻(xiàn)標(biāo)識(shí)碼：A文章編號(hào)：1002-848X(2020)15-0069-05

Effect of different high strength reinforcements in the edge column on seismic performance of shear walls

LUO Jing, ZHAO Jun

(School of Civil Engineering, Zhengzhou University, Zhengzhou 450001, China)

Abstract:In order to study the effect of the type of high-strength reinforcements in the edge column on the seismic performance of shear walls, 2 shear walls reinforced by steel strand in the edge column and 2 shear walls reinforced by carbon fiber reinforced plastic(CFRP) bar in the edge column were tested under low cyclic reversed lateral loading, and the failure modes, hysteresis performance, bearing capacity, skeleton curves, stiffness degradation, energy dissipation capacity, and self-centering capability of the 4 shear walls were compared and studied under the axial compression ratios of 0.17 and 0.26. The results show that the compression failure area of the shear walls reinforced by steel strand in the edge column is about 2 times larger than that of shear walls reinforced by CFRP bar, and the difference in the failure modes of the two types of shear walls is not affected by the axial compression ratio; the bearing capacity of shear walls reinforced by steel strand in the edge column is higher than that of shear walls reinforced by CFRP bar in the edge column, and the ultimate lateral deformation is also greater under two axial compression ratios; the axial compression ratio has a significant impact on the energy dissipation coefficient of concrete shear walls reinforced by steel strand and CFRP bar in the edge column; all shear walls have good self-centering capability under large deformation, and the residual deformation of shear walls reinforced by CFRP bar in the edge column is relatively smaller.

Keywords:edge column; shear wall; seismic performance; CFRP bar; steel strand; self-centering

*國(guó)家重點(diǎn)研發(fā)計(jì)劃項(xiàng)目（2016YFR0125600），教育部創(chuàng)新團(tuán)隊(duì)發(fā)展計(jì)劃項(xiàng)目（IRT_16R67），中原千人計(jì)劃-中原科技創(chuàng)新領(lǐng)軍人才項(xiàng)目（ZYQR201912029）。

作者簡(jiǎn)介：羅京，碩士研究生，Email: 18236911339@163.com； 通訊作者：趙軍，博士，教授，博士生導(dǎo)師，Email:zhaoj@zzu.edu.cn。