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（1 西安理工大學(xué)土木建筑工程學(xué)院， 西安 710048； 2 陜西中霖集團(tuán)工程設(shè)計(jì)研究有限公司， 西安 710055）

［摘要］為揭示短肢剪力墻的抗震能力及變形能力，進(jìn)行了T形與L形截面共12片短肢剪力墻試件的低周反復(fù)荷載試驗(yàn)，并結(jié)合數(shù)值分析，研究了短肢剪力墻的破壞形態(tài)及縱筋強(qiáng)度、縱筋配筋率、箍筋配箍率以及軸壓比對(duì)其水平承載力的影響規(guī)律。根據(jù)短肢剪力墻不同階段的破壞程度，將其性能劃分為使用良好、使用無(wú)害、生命安全、防止倒塌四個(gè)性能水平，提出用位移角作為結(jié)構(gòu)的性能控制指標(biāo)。依據(jù)所搜集的短肢剪力墻試件數(shù)據(jù)的統(tǒng)計(jì)整理，指出各性能水平的位移角均值分別為1/556，1/185，1/79，1/45；考慮試驗(yàn)結(jié)果的離散性和結(jié)構(gòu)設(shè)計(jì)的安全性及保證率需求，建議短肢剪力墻具有95%保證率的四個(gè)性能水平的位移角限值分別取為1/1 180，1/336，1/133，1/104。

［關(guān)鍵詞］短肢剪力墻； 性能指標(biāo)； 位移角限值

中圖分類號(hào)：TU375文獻(xiàn)標(biāo)識(shí)碼：A文章編號(hào)：1002-848X(2016)15-0027-05

Research on performance parameters and indices of RC short-pier shear walls

Li Xiaolei1, Lu Junlong1, Zhang Chao2

（1 School of Civil Engineering and Architecture, Xi′an University of Technology, Xi′an 710048, China;2 Shaanxi Zhong Lin Group for Engineering Design and Research Co., Ltd., Xi′an 710055, China）

Abstract:In order to reveal the seismic capacity and the deformation ability of short-pier shear walls, low reversed cyclic loading tests on total of 12 T-shaped and L-shaped specimens were carried out. Combined with the numerical analysis results, the influencing laws of the damage form of short-pier shear walls as well as longitudinal reinforcement strength, longitudinal reinforcement ratio, stirrup ratio and the axial compression ratio on horizontal bearing capacity were analyzed. According to different damage degrees of short-pier shear walls in different stages, the performances of short-pier shear wall structures were divided into four levels, including normal service, harmless service, life-safety and collapse-prevention. The layer drift ratio was proposed as the index for controlling the performance of short-pier shear wall structures. According to the collected data statistics of short-pier shear wall specimens, the average layer drift ratio of each performance level was 1/556, 1/185, 1/79 and 1/45 respectively. Considering the discreteness of results and the safety and guaranteed rate requirements of the structural design, it suggested that the layer drift ratio limit of each performance level with guaranteed rate of 95% for short-pier shear walls was 1/1 180, 1/336, 1/133 and 1/104 respectively.

Keywords:short-pier shear wall; performance index; layer drift ratio limit

*國(guó)家自然科學(xué)基金項(xiàng)目（51508463），中國(guó)博士后科學(xué)基金（2014M562523XB），陜西省教育廳項(xiàng)目（15JK1510）。

作者簡(jiǎn)介：李曉蕾，博士,講師,Email:lxl_832277@163.com。