(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)

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.

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

中图分类号:TU973+. 23 文献标志码:A 文章编号:1002-848X(2023)04-0052-06

DOI:10. 19701 / j. jzjg. LS210130

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

WANG Jinghui1,2,3,4, TAN Ping1,2,3, ZHOU Fulin1,2,3, CHEN Huating1,2,3, WANG Yang4, CHEN Biaohan4

(1 Collaborative Innovation Center for Earthquake Mitigation and Disaster Prevention of Civil Engineering, GuangzhouUniversity, Guangzhou 510405, China; 2 Guangdong Provincial Key Laboratory of Earthquake Engineering and ApplicationTechnology, Guangzhou University, Guangzhou 510405, China; 3 Key Laboratory of Engineering Anti-seismic andStructural Safety of Ministry of Education, Guangzhou University, Guangzhou 510405, China; 4 Hong Kong HuayiDesign Consultant (Shenzhen) Co. , Ltd. , Shenzhen 518057, China)

Abstract: Office building main tower on Block B in CITIC City Plaza Phase Ⅲ adopts 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 thefloor and the outer frame column and the inclined column on the overall structure, the force transmission mechanism of theringbelt truss reinforced layer, the drawn column transfer node and the bifurcated column node were analyzed. When thefloor stiffness is 100% elastic stiffness, 50% elastic stiffness, 25% elastic stiffness and rigid floor were used, the torsionalbearing capacity of the structure for frequently earthquakes, medium earthquakes and rarely earthquakes were verifiedrespectively. For the spiral arrangement of outer frame columns, the structural torsional bearing capacity should bestrengthened. 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.

Keywords:super high-rise structure; dense column frame-core tube; ringbelt truss; torsion structure; bifurcation inclinedcolumn; transition structure

∗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).

第一作者:王静辉,博士,工程师,主要从事工程结构设计、结构抗震与减震控制研究,Email:260899537@ qq. com.

[引用本文] 王静辉,谭平,周福霖,等. 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[ J]. 建筑结构, 2023, 53 ( 4): 52-57. WANG Jinghui, TAN Ping, ZHOU Fulin, et al. Key issue analysis on super high-risestructural design of office building on Block B in CITIC City Plaza Phase Ⅲ[J]. Building Structure,2023,53(4):52-57.