(1 中衡设计集团股份有限公司, 苏州 215123ꎻ2 苏州市建设工程设计施工图审查中心, 苏州 215004)

摘要: 苏州金融街超高层塔楼 T1 采用型钢混凝土框架-核心筒结构体系. 因建筑功能及立面要求,外围框架柱在 40~ 44 层采用斜柱收进 3.3m,核心筒在 40~ 42 层东西侧与南北侧采用斜墙转换分别收进 875mm 和 300mmꎻ在结构屋面以上,设置了高 30m 的塔冠结构. 针对结构特点及超限情况,详细介绍了结构体系、性能化抗震设计、罕遇地震动力弹塑性分析ꎻ梳理了斜柱、斜墙的传力机理,并对斜柱、斜墙及塔冠结构进行专项分析. 根据分析结果采取加强措施,确保结构的安全性. 分析结果表明:所选结构体系安全合理,结构各项指标均满足规范相关要求,斜墙、斜柱转换传力机制有效,结构整体性较好,能满足相应性能目标要求.

关键词: 超高层结构;斜墙转换;斜柱转换;抗震性能化设计;塔冠结构

中图分类号:TU375,TU318 文献标志码:A 文章编号:1002-848X(2022)20-0078-06

DOI:10.19701 / j.jzjg.ZJ220022

Structural analysis and design of super high-rise inclined wall transfer building ofSuzhou Financial Street

GUO Yifeng1, TAN Lihua1, JIANG Miao2, YANG Yiyi1

(1 ARTS Group Co. , Ltd. , Suzhou 215123, Chinaꎻ2 Suzhou Construction Engineering Design and Construction Drawing Review Center, Suzhou 215004, China)

Abstract: The steel reinforced concrete frame-reinforced concrete core tube structure system was adopted on a superhigh-rise building T1 of Suzhou Financial Street. Due to the requirements of architectural functions and facades, the outerframe column was 3.3m in the 40th to 44th floors with inclined column, and the core tube was 875mm in the 40th to 42thfloors on the east-west side and 300mm on the north-south side with inclined wall conversion. Above the structural roof, thetower crown structure with a maximum of 30m was set up. According to the structural characteristics and overrun of theproject, the structural system, performance-based seismic design and dynamic elastic-plastic analysis under rare earthquakewere introduced in detail. The force transfer mechanism of inclined column and inclined wall were expounded, and thespecial analysis of inclined column , inclined wall , tower crown structure were carried out. Strengthening measures weretaken according to the analysis results to ensure the safety of the structure. The analysis results show that the selectedstructural system is safe and reasonable, each index of the structure meets the relevant requirements of the specification,the transfer mechanism of inclined walls and inclined columns is effective, and the structural integrity is good, which canmeet the corresponding performance requirements.

Keywords:super high-rise structure;inclined wall transfer;inclined column transfer;performance-based seismic designꎻtower crown structure

∗中衡设计集团科研项目(2019-S3):超高层结构体系与设计技术研究.

第一作者:郭一峰,硕士,高级工程师,一级注册结构工程师,主要从事超高层结构设计工作,Email:guoyifeng@ artsgroup. cn.

[引用本文] 郭一峰,谈丽华,江淼,等. 苏州金融街超高层斜墙转换结构分析与设计[ J]. 建筑结构,2022,52(20):78-83. GUO Yifeng,TAN Lihua,JIANG Miao,et al. Structural analysis and design of super high-rise inclined walltransfer building of Suzhou Financial Street[J]. Building Structure,2022,52(20):78-83.