(广州市设计院集团有限公司, 广州 510620)

摘要: 华邦国际中心是由两栋均为钢筋混凝土框架-核心筒结构的塔楼组成,A、B 塔分别在 128. 9m 和 133. 7m 标高处设置了跨度 46m 的空中连廊,空中连廊与塔楼之间采用刚性连接。 连体主结构为两道采用带端部斜撑的大型钢箱梁,连体南北方向有最大约 10m 的悬挑,悬挑通过连接于钢箱梁上的钢桁架实现。 对整体结构的小震弹性、大震弹塑性、基于性能设计的中大震等效弹性进行了分析;同时对连体结构的受力特点、连体邻跨结构布置对比、舒适度、施工模拟、抗连续倒塌等进行了分析。 结果表明:在适当加强措施下,结构能满足预期抗震性能目标要求,各项指标满足规范要求,结构安全可靠并具有足够的舒适度。

关键词: 华邦国际中心; 高位大跨连体结构; 超限高层结构; 抗震性能化设计; 大悬挑

中图分类号:TU318 文献标志码:A 文章编号:1002-848X(2022)24-0020-07

DOI:10. 19701 / j. jzjg. ZJ220067

Structural design of Huabang International Center

CAO Xindi, WANG Songfan, ZHAO Songlin, LI Wenhui, GUO Peng, CANG Sijun

(Guangzhou Design Institute Group Co. , Ltd. , Guangzhou 510620, China)

Abstract: Huabang International Center is composed of two towers with reinforced concrete frame-core tube structure. Atthe elevations of 128. 9 m and 133. 7 m, A and B towers are provided with an air corridor with a span of 46m, and the rigidconnection between the air corridor and the tower is adopted. The main structure of the conjoined structure is two large steelbox girders with diagonal braces at the ends. There is a maximum of 10m cantilever in the north-south direction of theconjoined structure. The cantilever is realized by the steel truss connected to the steel box girder. The small earthquakeelasticity, large earthquake elastic-plastic and medium and large earthquake equivalent elastic based on performance designof the whole structure were analyzed. At the same time, the mechanical characteristics, comparison of the arrangement ofadjacent span structure, comfort, construction simulation, anti-continuous collapse of the connected structure wereanalyzed. The results show that the structure can meet the requirements of antiseismic performance, and all indicationsmeet the specification requirements. The structure is safe and reliable, and has enough comfort.

Keywords:Huabang International Center; high-position large-span connected structure; over-limited high-rise structure;performance-based seismic design; big cantilever

∗广州市建筑集团有限公司科技计划项目资助项目([2021]-KJ020)。

第一作者:曹辛迪,学士,工程师,主要从事建筑结构设计,Email:315332697@ qq. com。

[引用本文] 曹辛迪,王松帆,赵松林,等. 华邦国际中心结构设计[ J]. 建筑结构,2022,52( 24):20-26. CAOXindi,WANG Songfan,ZHAO Songlin,et al. Structural design of Huabang International Center[ J]. Building Structure,2022,52(24):20-26.