带凹槽剪力墙-混凝土梁节点性能分析  

Performance analysis of the grooved shear wall⁃concrete beam joint

作　　者：刘梓洋 徐斌 张艳霞 张贺昕[1] LIU Ziyang;XU Bin;ZHANG Yanxia;ZHANG Hexin(School of Civil and Transportation Engineering,Beijng University of Civil Engineering and Architecture,Beijing 100044,China;China Design Security(Beijing)Engineering Consultancy Co.,Ltd.,Beijing 100044,China;Beijing Advanced Innovation Center for Future Urban Design,Beijing University of Civil Engineering and Architecture,Beijing 100044,China)

机构地区：[1]北京建筑大学土木与交通工程学院,北京100044 [2]中设安泰(北京)工程咨询有限公司,北京100044 [3]北京建筑大学工程结构与新材料北京市高校工程研究中心,北京100044

出　　处：《建筑结构》2024年第1期93-103,共11页Building Structure

基　　金：国家自然科学基金面上项目(51778036);长江学者和创新团队发展计划资助(IRT17R06)。

摘　　要：在高层、超高层钢框架-混凝土混合结构核心筒的施工中,滑模、爬模施工工艺得到广泛应用。但在实际工程中,核心筒内部往往采用混凝土次梁,这使得滑模、爬模施工工艺的应用受到限制。针对这一实际问题,提出了带凹槽剪力墙-混凝土梁节点。在对3个不同凹槽尺寸的带凹槽剪力墙-混凝土梁节点进行加载试验的基础上,利用有限元软件ABAQUS模拟3个墙梁节点,将有限元计算结果与试验结果对比。结果表明:带凹槽剪力墙-混凝土梁节点拥有良好的承载能力,且屈服荷载与极限荷载相差较大。凹槽构造可提升节点抗剪能力,且凹槽截面尺寸的大小是带凹槽剪力墙-混凝土梁节点抗剪能力提高的主要原因。In the construction of the core tube of high⁃rise and super high⁃rise steel frame⁃concrete mixed structure,the construction technology of sliding form and climbing form has been widely used.However,in actual engineering,concrete secondary beams are often used inside the core tube,which limits the application of sliding form and climbing form construction technology.To solve this problem,a grooved shear wall⁃concrete beam joint was proposed.On the basis of the loading test of 3 grooved shear wall⁃concrete beam joints with different grooved sizes,the finite element software ABAQUS was used to simulate 3 wall beam joints,and the finite element calculation results were compared with the test results.The results show that the grooved shear wall⁃concrete beam joint has good bearing capacity,and the yield load differs greatly from the ultimate load.The groove structure can improve the shear resistance of the joint,and the section size of the groove is the main reason for the improvement of the shear resistance of grooved shear wall⁃concrete beam joint.

关 键 词：框筒体系 带凹槽剪力墙-混凝土梁节点 骨架曲线 滞回曲线 耗能能力 

分 类 号：TU375.4[建筑科学—结构工程]