- 摘 要
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(1 青島理工大學土木工程學院, 青島 266033; 2 青建集團股份公司, 青島 266071)
[摘要]為評價HR-EPS(Hai Rong-Expanded Polystyrene)模塊剪力墻結(jié)構(gòu)的抗震性能,通過試驗與數(shù)值模擬相結(jié)合的方法,對配筋率及軸壓比不同的足尺HR-EPS模塊剪力墻試件進行抗震性能研究。研究結(jié)果表明:墻體配筋率的提高,可以大幅增強足尺HR-EPS模塊剪力墻的水平承載力;隨著墻體配筋率的增加,墻體的剛度、位移延性系數(shù)以及耗能能力均有所增加,剛度退化速率有所降低;模擬結(jié)果與試驗數(shù)據(jù)基本吻合,適當?shù)卦黾虞S壓比可提高試件的耗能能力及其剛度,使其抗震性能有所提升;并根據(jù)試驗結(jié)果對已有公式進行修正,給出了足尺HR-EPS模塊剪力墻抗剪承載力計算公式。
[關(guān)鍵詞]HR-EPS模塊剪力墻; 配筋率; 低周循環(huán)加載試驗; 抗震性能; 足尺試驗
中圖分類號:TU398+.2文獻標識碼:A文章編號:1002-848X(2021)01-0087-07
Experimental study on seismic performance of full-scale HR-EPS module shear wall
XIAO Yao1, SONG Zuqiang2, LI Xiaodong1, ZHOU Lichen1, ZHENG Zhiyuan1
(1 School of Civil Engineering, Qingdao University of Technology, Qingdao 266033, China;2 Qingjian Group Co., Ltd., Qingdao 266071, China)
Abstract:In order to evaluate the seismic performance of HR-EPS(Hai Rong-Expanded Polystyrene) module shear wall structure, seismic behaviors of full-scale HR-EPS module shear walls were evaluated under different reinforcement ratio and axial compression ratio through a combination of the experimental study and numerical simulation. The results show that the horizontal bearing capacity of full-scale HR-EPS module shear wall increases obviously with the increase in the wall reinforcement ratio. The stiffness, displacement ductility coefficient and energy consumption capacity of full-scale HR-EPS module shear wall increase while the stiffness degradation rate decreases with the increase in the wall reinforcement ratio. The results of simulation are basically consistent with experiment, and the energy consumption capacity and stiffness of specimen can be improved by increasing axial compression ratio properly, and the seismic performance is improved at the same time. The calculation formula for shear bearing capacity of full-scale HR-EPS module shear wall is deduced according to the results and existing formulas.
Keywords:HR-EPS module shear wall; reinforcement ratio; low-cyclic reversed loading experiment; seismic performance; full-scale test
作者簡介:肖瑤,碩士研究生,Email:2470976066@qq.com;通信作者:李曉東,博士,副教授,碩士生導師,Email:xiaodongli1976@163.com。