双面叠合剪力墙水平接缝传力性能试验研究  

Experimental study on force transmission performance of double-sided superposed shear walls with horizontal joints

作　　者：曹任辉 彭波 任靖 谭园 谷倩[1] CAO Renhui;PENG Bo;REN Jing;TAN Yuan;GU Qian(School of Civil Engineering and Architecture,Wuhan University of Technology,Wuhan 430070,China;Design and Research Institute of Hubei Industrial Construction Group Co.,Ltd.,Wuhan 430072,China;Myhome Building Assembly Technology Co.,Ltd.,Wuhan 430071,China)

机构地区：[1]武汉理工大学土木工程与建筑学院,武汉430070 [2]湖北省工业建筑集团有限公司设计研究院,武汉430072 [3]美好建筑装配科技有限公司,武汉430071

出　　处：《建筑结构》2023年第14期19-26,共8页Building Structure

基　　金：武汉市城建局科技计划项目(201922);湖北省地方标准制修订计划项目(第二批)。

摘　　要：为研究双面叠合剪力墙竖向连接钢筋位置对其水平接缝传力性能的影响,完成了4片双面叠合剪力墙足尺试件的静力加载试验和有限元分析,对比分析了各试件的破坏形态、承载力、延性、刚度退化和水平接缝处竖向连接钢筋的传力性能。研究结果表明:各试件均表现为典型的弯曲破坏形态,接缝左侧均出现了弯曲裂缝,表现出良好的传力性能;连接钢筋紧靠预制墙板内侧的试件更易开裂;增大连接钢筋距预制墙板内侧净距,会降低叠合试件的承载力,对叠合试件的刚度退化速度影响较小;试件接缝处的传力性能可以实现与单根钢筋传力相似的应力传递过程,其中连接钢筋距预制墙板内侧净距为20mm的传力效果最佳。双面叠合剪力墙试件的有限元计算结果与试验结果吻合良好。In order to study the influence of the position of vertical connecting bars on the force transmission performance of horizontal joints in double-sided superposed shear walls,a static loading test and finite element analysis on four full-size specimens of double-sided superposed shear walls were carried out.Their failure modes,load-bearing capacity,ductility,stiffness degradation and the force transmission performance of vertical connecting bars at the horizontal joint were comparatively analyzed.The results show that all specimens are typical bending failure patterns;there are bending cracks on the left side of the joint,showing good force transmission performance.The specimens with connecting bars close to the inside of the prefabricated wall panels are more likely to crack;with the increase of clear distance between connecting bar with precast layer,the bearing capacity of the superposed specimens was reduced,the stiffness degradation rate of the superposed specimens was less affected;the force transmission performance at the joints is similar to that of a single bar,and the best effect of the force transmission performance is the one with a net distance of 20mm between the connecting bar and the inner side of the precast wall panel.The finite element analysis results of the double-sided superposed shear wall are in good agreement with the test results.

关 键 词：双面叠合剪力墙 竖向钢筋连接位置 水平接缝 传力性能 有限元分析 

分 类 号：TU375.2[建筑科学—结构工程]