（1 西安理工大学土木建筑工程学院， 西安 710048； 2 陕西中霖集团工程设计研究有限公司， 西安 710055）

［摘要］为揭示短肢剪力墙的抗震能力及变形能力，进行了T形与L形截面共12片短肢剪力墙试件的低周反复荷载试验，并结合数值分析，研究了短肢剪力墙的破坏形态及纵筋强度、纵筋配筋率、箍筋配箍率以及轴压比对其水平承载力的影响规律。根据短肢剪力墙不同阶段的破坏程度，将其性能划分为使用良好、使用无害、生命安全、防止倒塌四个性能水平，提出用位移角作为结构的性能控制指标。依据所搜集的短肢剪力墙试件数据的统计整理，指出各性能水平的位移角均值分别为1/556，1/185，1/79，1/45；考虑试验结果的离散性和结构设计的安全性及保证率需求，建议短肢剪力墙具有95%保证率的四个性能水平的位移角限值分别取为1/1 180，1/336，1/133，1/104。

［关键词］短肢剪力墙； 性能指标； 位移角限值

中图分类号：TU375文献标识码：A文章编号：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

*国家自然科学基金项目（51508463），中国博士后科学基金（2014M562523XB），陕西省教育厅项目（15JK1510）。

作者简介：李晓蕾，博士,讲师,Email:lxl_832277@163.com。