(WSP科进顾问有限公司， 香港 999077)

［摘要］某高层酒店项目是包含多栋复杂高层建筑的大型综合发展项目。介绍本项目B栋塔楼的连体结构设计。该塔楼结构高度为187.25m，地上59层，地下4层。结构采用钢筋混凝土框架-核心筒结构。结构的Y向高宽比达到8.9，该方向的刚度不足，通过在两端设置“山墙”构件提高结构的整体抗侧刚度，并通过设置钢骨提高构件的抗震抗拉性。结构在29层设置转换桁架，属于高位连体结构。采用性能化的分析方法对转换桁架进行重力与抗震分析，以满足关键构件性能目标的要求。最后采用弹塑性时程分析方法检验结构及关键构件在大震作用下的性能。分析结果表明，该设计满足抗震性能要求。 

［关键词］超限高层建筑； 连体结构； 转换桁架； 高宽比； 弹塑性时程分析 

中图分类号：TU318-2 文献标识码：A文章编号：1002-848X(2021)11-0028-06

Design of high-level connective structure for a high-rise building  

CHEN  Xuewei,  WONG  Henry 

(WSP Hongkong Limited， Hongkong 999077， China) 

Abstract: A high-rise hotel project is a large-scale comprehensive development project with multiple complex high-rise buildings. The connective structure design of tower B of the project was introduced. The structural height of tower B is 187.25m with 59 floors above the ground and 4 floors under the ground. The structure adopts reinforced concrete frame-core tube structure. The aspect ratio in Y direction of the structure reaches 8.9, and the rigidity in this direction is insufficient. The “gable wall” members are set at both ends to improve the overall lateral stiffness of the structure, and imbeded steel is set to improve the seismic and tensile resistance of the members. The transfer trusses are set on 29th floor, which is a high-level connective structure. Performance-based analysis method was applied to analyze the gravity and seismic behavior of the transfer truss, which meets the performance target requirement of the key member. Finally, the elastoplastic time history analysis method was adopted to review the performance of the structure and key members under rare earthquake. The analysis results show that the design meets the seismic performance requirements. 

Keywords:out-of-code high-rise building； connective structure； transfer truss； aspect ratio； elastoplastic time history analysis

作者简介：陈学伟，博士，高级工程师，Email:dinochen1983@qq.com。