(1 北京建筑大学土木与交通工程学院， 北京 100044； 2 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；  3 中设安泰（北京）工程咨询有限公司， 北京 100044)

［摘要］针对在框架-核心筒体系中核心筒内混凝土次梁对滑模、爬模施工技术的不利影响，提出了带凹槽剪力墙-混凝土梁节点。该节点在满足滑模、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。在已完成三个变凹槽节点试验的基础上，对带凹槽剪力墙-混凝土梁节点抗弯承载力，受剪承载力进行理论分析，在此基础上提出相应计算公式。经对比，带凹槽剪力墙-混凝土梁计算理论计算值与试验值、模拟值相差比例在15%以内，能够为节点设计提供理论支撑。

［关键词］框架-核心筒体系； 带凹槽剪力墙-混凝土梁节点； 受弯承载力； 受剪承载力； 理论分析

中图分类号：TU375-4文献标识码：A文章编号：1002-848X(2019)17-0084-06

Theoretical analysis of bearing capacity of grooved shear wall-concrete beam joint

Zhang Yanxia1,2, Sun Yu1, Xu Bin3, Zhang Hexin1

(1 School of Civil and Transportation Engineering, Beijing University of Civil Engineering and Architecture, Beijing 100044, China; 2 Beijing Higher Institution Engineering Research Center of Structural Engineering and New Materials, Beijng University of Civil Engineering and Architecture, Beijing 100044, China;  3 China Design Security (Beijing) Engineering Consultancy Co., Ltd., Beijing 100044, China)

Abstract:A new grooved shear wall-concrete beam joint was proposed aimed at the negative effects of concrete secondary beams in the corewall on the sliding form and climbing formwork technologies for frame-corewall system. Under the premise of being compatible with the sliding form and the climbing formwork technologies, the joint possesses strong bearing capacity and can meet the structural design requirements of the inner beam of the corewall shear wall to work as a secondary beam to bear and transfer the vertical loads. On the basis of three experiments of variable grooved joints completed, theoretical analyses were carried out on mechanical mechanism as well as bending and shearing capacity of the proposed grooved shear wall-concrete beam joint and then the corresponding calculation formula were proposed. By comparison, the ratio of theoretical calculation value to experimental value and simulation value was less than 15%, which could provide theoretical support for joint design.

Keywords:frame-corewall system; grooved shear wall-concrete beam joint; bending capacity; shear capacity; theoretical analysis

*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_17R06）。

作者简介：张艳霞，博士，教授，博士生导师，Email：zhangyanxia@bucea.edu.cn。