装配式剪力墙齿槽式连接受剪性能研究  

Shear behavior on prefabricated shear wall alveolar type connection

作　　者：张锡治[1,2] 马健[3] 韩鹏[3] 牛四欣 章少华[3] 

机构地区：[1]天津大学建筑设计研究院,天津300072 [2]天津大学天津市土木工程结构及新材料重点实验室,天津300072 [3]天津大学建筑工程学院,天津300072

出　　处：《建筑结构学报》2017年第11期93-100,121,共9页Journal of Building Structures

基　　金：国家自然科学基金项目(51578369);天津市应用基础与前沿技术研究计划重点项目(2014JCZDJC40000)

摘　　要：为研究装配式剪力墙齿槽式连接的受剪性能,进行了8片1/2缩尺剪跨比为0.54的齿槽式连接试件单调推覆加载试验。研究了装配式剪力墙齿槽式连接的破坏模式、开裂形态、荷载-位移曲线和承载力,分析了轴压比、暗柱设置、齿槽长度等因素对装配式剪力墙齿槽式连接受剪承载力的影响。结果表明:轴压比对齿槽式连接试件的开裂模式影响较大,轴压比较大的试件,裂缝开展以对角线方向的斜裂缝为主;轴压比较小的试件,裂缝开展以齿槽接合面裂缝为主;增加轴压比和设置暗柱提高了装配式剪力墙齿槽式连接的受剪承载力,齿槽长度对装配式剪力墙齿槽式连接受剪承载力影响较小。基于现有研究成果和试验结果,提出了装配式剪力墙齿槽式连接受剪承载力计算式,其计算结果与试验结果吻合较好。In order to study the shear behavior of alveolar connection in RC shear wall under working state,eight 1/2 scaled RC shear walls of alveolar connection with the shear to span ratio of 0. 54 were tested under monotonic load.The failure modes,cracking patterns,load-displacement curves and bearing capacity of RC shear walls of alveolar connection were studied. The influences of axial compressive ratio,setting of the edge member and length of the tooth groove were analyzed in this test program. The test results show that the axial compressive ratio has a great influence on cracking patters of the RC shear walls of alveolar connection. The cracks observed during the test are mainly diagonal cracks under high axial compressive ratio,while the cracks are mainly concentrated at the junction surface of tooth groove joint parts under low axial compressive ratio. Increasing the axial compression ratio and setting the edge member can increase the shear bearing capacity of the RC shear walls of alveolar connection,but the length of the tooth groove has no significant effect on its shear bearing capacity. The shear bearing capacity formula of RC shear walls of alveolar connection is proposed based on the existing research results,and the calculated results are in good agreement with the experimental results.

关 键 词：装配式剪力墙 齿槽式连接 静力试验 受剪承载力 

分 类 号：TU375.4[建筑科学—结构工程] TU317.1