(1 中国建筑第八工程局有限公司， 上海 200135； 2 同济大学土木工程学院， 上海 200092；3 华东建筑集团股份有限公司， 上海 200011； 4 北京工业大学城建学部， 北京 100124)

［摘要］针对双面叠合剪力墙水平连接节点，进行了循环剪切荷载作用下的试验研究。结果表明在灌浆层内出现了对角斜裂缝，水平连接节点破坏时伴随着对角裂缝附近混凝土的压溃，可以通过软化拉压杆模型来解释这一现象。根据软化拉压杆模型对双面叠合剪力墙水平连接节点的抗剪机理进行分析，根据试验结果对软化拉压杆模型中斜压杆的有效宽度进行了分析，建立了基于软化拉压杆模型的双面叠合剪力墙水平连接节点的抗剪承载力计算公式。 

［关键词］双面叠合剪力墙；水平连接节点；抗剪承载力；软化拉压杆模型 

中图分类号：TU375-1 文献标识码： A文章编号：1002-848X(2021)23-0120-07

Analysis of capacity on horizontal connections node of the double-superimposed shear wall based on a softened strut-and-tie model  

YU  Shaole1,  YANG  Lianping2,3,  QI  Ligang1,  ZHANG  Qilin2,  ZHANG  Wenying4

(1 China Construction Eighth Engineering Division Co., Ltd., Shanghai 200135， China； 2 College of Civil Engineering，Tongji University, Shanghai 200092， China； 3 Arcplus Group PLC, Shanghai 200011， China； 4 College of Civil Engineering, Beijing University of Technology, Beijing 100124， China) 

Abstract: For the horizontal connection node of the double-superimposed shear wall, an experimental study under the action of cyclic shear load was carried out. The results show that diagonal cracks appear in the grouting layer, and the failure of horizontal connection nodes is accompanied by the collapse of the concrete near the diagonal cracks. This phenomenon can be explained by softened strut-and-tie model. The shear mechanism of horizontal connections node of the double-superimposed shear wall was analyzed based on softened strut-and-tie model. According to the test results, the effective width of the diagonal strut in the softened strut-and-tie model was analyzed. The calculation formula for shear bearing capacity of the horizontal connection node of the double-superimposed shear wall was derived based on the softened strut-and-tie model. 

Keywords:double-superimposed shear wall； horizontal connection node； shear capacity； softened strut-and-tie model

*上海市科委“上海市装配式建筑技术集成工程技术研究中心”建设项目（16DZ2250600）。

 作者简介：余少乐，博士，高级工程师，Email:  yushaole10@163.com； 通信作者：张文莹，博士，讲师，硕士生导师，Email: wenyingchangan@163.com。