(1 中设安泰（北京）工程咨询有限公司， 北京 100044； 2 中建一局集团建设发展有限公司， 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)

［摘要］针对在框筒体系中核心筒内混凝土次梁对滑模、爬模施工技术的影响，提出了带凹槽剪力墙-混凝土梁节点。该节点采用在剪力墙混凝土浇筑前设置带有易剔凿的XPS聚苯乙烯泡沫挤塑板的预埋件的方式来解决以往浇筑剪力墙后直接剔凿混凝土、施工费时费力的难题。以三个不同尺寸的凹槽节点为试验对象，在低周往复加载作用下，进一步分析试件的滞回曲线、骨架曲线、破坏形态、耗能能力等力学性能。结果表明,带凹槽剪力墙混凝土梁节点在满足滑模、爬模施工的前提下，具有较强的承载能力，能够满足核心筒剪力墙内部梁作为次梁承担及传递竖向荷载的结构设计要求。

［关键词］框筒体系； 带凹槽剪力墙-混凝土梁节点； 低周往复加载； 试验研究

中图分类号：TU375-4文献标识码：A文章编号：1002-848X(2019)17-0077-07

Experimental research on low-cycle reciprocating loading of the grooved shear wall-concrete beam joint 

Xu Bin1, Kong Yatao2, Zhang Yanxia3, Guo Liang2, Zhang Hexin3

(1 China Design Security (Beijing) Engineering Consultancy Co., Ltd., Beijing 100044, China; 2 China Construction First Building(Group) Corporation Limited, Beijing 100044,China; 3 Beijing Higher Institution Engineering Research Center of Structural Engineering and New Materials, Beijng University of Civil Engineering and Architecture, Beijing 100044, China)

Abstract:A new grooved shear wall-concrete beam joint is proposed to eliminate the negative effects of concrete secondary beams in the core-cylinder system on the sliding form and climbing formwork technologies. The node adopts the method of pre-embedded parts with XPS polystyrene foam extruded board before the concrete wall pouring of the shear wall to solve the problem that it is time-consuming and laborious to directly dig the concrete after pouring the shear wall. In order to study the mechanical properties of the nodes, three grooved shear wall-concrete beam joints with different dimensions are selected in this paper as testing specimen to conduct low-cycle reciprocating loading and to study the mechanical properties such as hysteresis curves, skeleton curves, failure mode and energy dissipation capacities.Under the premise of being compatible with the sliding form and the climbing formwork technology, the joint possesses strong bearing capacity and can meet the structural design requirements of the inner beam of the core tube shear wall working as a secondary beam to bear and transfer the vertical loads.

Keywords:frame tube system; grooved shear wall-concrete beam joint; low cycle reciprocating loading; experimental study

*国家自然科学基金面上项目（91778036），长江学者和创新团队发展计划资助（IRT_ 7R06）。

作者简介：徐斌，硕士，教授级高级工程师，Email：1871323045@qq.com。