(1 华森建筑与工程设计顾问有限公司，深圳 518054； 2 中国建筑设计研究院，北京 100044；
3 奥雅纳工程咨询有限公司，深圳 518026)
［摘要］某超高层采用框架-核心筒结构体系，在内筒与核心筒之间采用伸臂桁架连接。介绍了这种结构形式的特点，利用有限元软件LS-DYNA分析了在控制工况作用下伸臂桁架与混凝土核心筒连接节点的工作性能，考察了伸臂桁架对混凝土墙体的影响及节点的破坏形态。结果显示，在荷载标准组合作用下，混凝土剪力墙及节点满足设计要求；在最不利工况作用下，混凝土剪力墙满足承载力极限状态要求；采用铸钢节点后满足强节点的设计要求。
［关键词］连接节点；超高层结构；伸臂桁架；非线性；有限元分析
Nonlinear finite element analysis on connection joint of a super high-rise building
Ma Chenjie1,3, Zhang Liangping1, Fan Zhong2(1 Huasen Architecture & Engineering Design Consultants Ltd., Shenzhen 518054, China; 2 China Architecture Design & Research Group, Beijing 100044, China; 3 ARUP International Consultants Co., Ltd., Shenzhen 518026, China)
Abstract:The structural system，which the inner core connect huge column by outrigger truss，has been developed in recent years. The performance of the connection joint of outrigger and inner core or column is very important. Once the joint is failed, disastrous accident will be brought. At the beginning, the features of the joint were introduced, and then the working performance of the joint was analyzed using finite element software LS-DYNA based on a super high-rise building. Finally, some advices were given according to these results. According to these results, the joint satisfy design requirement under the nominal load combination. Under the least favorable load combination and using the connection of structural steel casting, the joint satisfy design requirement.
Keywords:connection joint; super high-rise building; outrigger; nonlinear; finite element analysis
作者简介：马臣杰，硕士，工程师，Email:mao.6@163.com。
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