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（1 重慶大學(xué)土木工程學(xué)院， 重慶 400045； 2 中機(jī)中聯(lián)工程有限公司， 重慶 400039）

［摘要］在低烈度的低、多層混凝土剪力墻結(jié)構(gòu)中，是否可以采用比現(xiàn)行規(guī)范規(guī)定的墻體和邊緣構(gòu)件構(gòu)造配筋更低要求的配筋形式，是目前低烈度區(qū)低、多層剪力墻結(jié)構(gòu)設(shè)計(jì)需要解決的問題。通過7個(gè)低配筋剪力墻試件的低周反復(fù)加載試驗(yàn)，從破壞模式、延性、承載力、剛度、耗能能力、滯回性能等方面對(duì)低烈度區(qū)采用適合低、多層住宅結(jié)構(gòu)的低配筋剪力墻試件的工作性能進(jìn)行評(píng)價(jià)。試驗(yàn)的變化參數(shù)為截面形式、邊緣構(gòu)件縱筋配筋率、邊緣構(gòu)件箍筋配箍率、墻體腹板水平及豎向分布鋼筋配筋率。通過對(duì)試驗(yàn)結(jié)果的對(duì)比分析，在低烈度區(qū)的低、多層剪力墻結(jié)構(gòu)中，能夠采用經(jīng)過合理設(shè)計(jì)的低配筋剪力墻。

［關(guān)鍵詞］抗震性能； 鋼筋混凝土； 低配筋剪力墻

中圖分類號(hào)： TU973.1+6 文獻(xiàn)標(biāo)識(shí)碼： A文章編號(hào)：  1002-848X(2016)S1-0347-06

Experiments on seismic behaviors of low reinforcement of low-story, multi-storey

 residential shear walls in low intensity regions

Cui Jiaren1, Wang Min1, Chen Xiaolei1, Wang Liang2, Chen Yuanjun2, Fu Jianping1

(1 School of Civil Engineering, Chongqing University, Chongqing 400045, China; 

2 CMCU Engineering Corporation, Chongqing 400039, China)

Abstract: In the design field of low-story, multi-story RC shear wall structures in low-intensity regions, the ratio of longitudinal reinforcing steel bar of shear walls and the edge members is set as the constructional reinforcement ratio according to current codes. From the perspective of optimization, whether lower reinforcement ratios can be applied to low-story, multi-story RC shear wall structures in the low seismic intensity area needs to be studied. 7 shear wall specimens with low reinforcement ratios were selected as research objects. Section types, longitudinal reinforcement ratios and stirrup ratios of edge members, horizontal and vertical distribution reinforcement ratios of the shear wall webs were selected as parameter variables to make comparative analysis. Through horizontal cyclic loading experiments, the failure mode, ductility, bearing capacity, stiffness, energy dissipation and hysteretic behavior of the specimens were investigated. The test results prove that the seismic behavior of low-story, multi-story RC shear wall structures with low reinforcement ratios by reasonable design is accepted in the low-intensity regions.

Keywords: seismic behavior; reinforced concrete; low-reinforced shear wall

作者簡(jiǎn)介： 崔嘉仁，碩士研究生，Email：20141613113@cqu.edu.cn。

*中國(guó)建筑科學(xué)研究院自籌基金課題(20070106330730011)，重慶市建委科研項(xiàng)目(城科字2008 第70號(hào))