中信城市广场三期B地块办公楼超高层结构设计关键问题分析  

Key issue analysis on super high-rise structural design of office building on Block B in CITIC City Plaza Phase Ⅲ

作　　者：王静辉 谭平[1,2,3] 周福霖[1,2,3] 陈华霆 汪洋 陈彪汉 WANG Jinghui;TAN Ping;ZHOU Fulin;CHEN Huating;WANG Yang;CHEN Biaohan(Collaborative Innovation Center for Earthquake Mitigation and Disaster Prevention of Civil Engineering,Guangzhou University,Guangzhou 510405,China;Guangdong Provincial Key Laboratory of Earthquake Engineering and Application Technology,Guangzhou University,Guangzhou 510405,China;Key Laboratory of Engineering Anti-seismic and Structural Safety of Ministry of Education,Guangzhou University,Guangzhou 510405,China;Hong Kong Huayi Design Consultant(Shenzhen)Co.,Ltd.,Shenzhen 518057,China)

机构地区：[1]广州大学土木工程减震防灾省部共建协同创新中心,广州510405 [2]广州大学广东省地震工程与应用技术重点实验室,广州510405 [3]广州大学工程抗震减震与结构安全教育部重点实验室,广州510405 [4]香港华艺设计顾问(深圳)有限公司,深圳518057

出　　处：《建筑结构》2023年第4期52-57,共6页Building Structure

基　　金：国家自然科学基金项目(51978185);教育部创新团队研究发展计划项目(IRT13057);广东省教育厅创新团队项目(2016KCXTD016);广州大学研究生创新能力培养资助计划项目(2018GDJC-D06)。

摘　　要：中信城市广场三期B地块办公楼主塔采用密柱框架-核心筒+环带桁架混合结构体系,分析了楼板和外框柱剪力传递及斜柱引起水平力对整体结构的影响、环带桁架加强层的传力机理、抽柱转换节点和分叉柱节点受力。当楼板刚度分别取100%弹性刚度、50%弹性刚度、25%弹性刚度和刚性楼板时,分别验证了结构小震弹性、中震不屈服、大震不屈服的扭转承载力,对于此外框柱螺旋布置形式,应增强结构的抗扭转承载力;分叉斜柱的倾斜角度控制在10°范围以内较合适且采用型钢混凝土节点设计。Office building main tower on Block B in CITIC City Plaza PhaseⅢadopts a dense column frame-core tube+ring belt truss hybrid structure system.The influence of the horizontal force caused by the shear force transmission of the floor and the outer frame column and the inclined column on the overall structure,the force transmission mechanism of the ringbelt truss reinforced layer,the drawn column transfer node and the bifurcated column node were analyzed.When the floor stiffness is 100%elastic stiffness,50%elastic stiffness,25%elastic stiffness and rigid floor were used,the torsional bearing capacity of the structure for frequently earthquakes,medium earthquakes and rarely earthquakes were verified respectively.For the spiral arrangement of outer frame columns,the structural torsional bearing capacity should be strengthened.It is more appropriate to control the inclination angle of the bifurcated inclined column within the range of 10°and adopt the steel concrete joint design.

关 键 词：超高层结构设计 密柱框架-核心筒 环带桁架 扭转结构 分叉斜柱 转换结构 

分 类 号：TU973.23[建筑科学—结构工程]