苏州金融街超高层斜墙转换结构分析与设计
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300mm;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；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
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[5] 哈敏强，李蔚，陆陈英，等.宁波绿地中心超高层结构设计[J].建筑结构，2015,45(7):17-24,42.
[6] 段炼，邓杰，王建峰，等.498m超高层建筑核心筒斜墙转换区设计研究[J].建筑结构，2021,51(S1):164-169.
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Structural analysis and design of super high-rise inclined wall transfer building of Suzhou Financial Street
Abstract: The steel reinforced concrete frame-reinforced concrete core tube structure system was adopted on a super high-rise building T1 of Suzhou Financial Street. Due to the requirements of architectural functions and facades, the outer frame column was 3.3 m in the 40 th to 44 th floors with inclined column, and the core tube was 875 mm in the 40 th to 42 th floors on the east-west side and 300 mm on the north-south side with inclined wall conversion. Above the structural roof, the tower crown structure with a maximum of 30 m was set up. According to the structural characteristics and overrun of the project, the structural system, performance-based seismic design and dynamic elastic-plastic analysis under rare earthquake were introduced in detail. The force transfer mechanism of inclined column and inclined wall were expounded, and the special analysis of inclined column, inclined wall, tower crown structure were carried out. Strengthening measures were taken according to the analysis results to ensure the safety of the structure. The analysis results show that the selected structural 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 can meet the corresponding performance requirements.
Keywords: super high-rise structure; inclined wall transfer; inclined column transfer; performance-based seismic design; tower crown structure
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