长沙保利国际广场B3塔楼超高层结构设计  

Super high-rise structure design on B3 tower of Changsha Poly International Plaza

作　　者：陈宇 王四清 夏心红 朱亮 CHEN Yu;WANG Siqing;XIA Xinhong;ZHU Liang(Hunan Architectural Design Institute Group Co.,Ltd.,Changsha 410012,China;New Complex Structure Research Center of Hunan Architectural Design Institute Group Co.,Ltd.,Changsha 410012,China)

机构地区：[1]湖南省建筑设计院集团股份有限公司,长沙410012 [2]湖南省建筑设计院集团股份有限公司新型复杂结构研究中心,长沙410012

出　　处：《建筑结构》2022年第22期40-45,共6页Building Structure

基　　金：湖南省科技计划项目:湖南省社会发展领域重点研发项目(2017SK2260)。

摘　　要：长沙保利国际广场B3塔楼建筑高度235m,采用混合框架-钢筋混凝土核心筒-伸臂桁架-带状桁架结构体系,属于结构不规则的高度超限结构。采用SATWE和ETABS两种软件对塔楼进行弹性分析,并采用PERFORM3D进行动力弹塑性时程分析,针对加强层、核心筒竖向收进、斜柱等重点部位采用了伸臂桁架贯通剪力墙、剪力墙中设置交叉钢筋暗撑、加强楼板构造等加强措施。结果表明,塔楼各项指标均满足规范要求和预期抗震性能目标,结构安全可靠。The building height of B3 tower of Changsha Poly International Plaza is 235m.A hybrid frame-reinforced concrete core-outrigger truss-belt truss system was adopted,which belonged to the irregular structure and height overrun structure.Elastic analysis of the tower was carried out using SATWE and ETABS software,and dynamic elastic-plastic time-history analysis was carried out using PERFORM-3D.For key parts such as the reinforcement layer,the vertical retraction of the core tube and the inclined column,strengthening measures such as the outrigger truss penetrating the shear wall,setting cross steel bar concealed bracing in shear wall and the strengthening floor structure were adopted.The results show that all the indicators of the tower meet the requirements of the code and the expected seismic performance targets,the structure is safe and reliable.

关 键 词：超高层建筑 混合结构体系 伸臂桁架 带状桁架 倾斜外框柱 

分 类 号：TU973[建筑科学—结构工程]