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。
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.
作者
郭一峰
谈丽华
江淼
杨义益
GUO Yifeng;TAN Lihua;JIANG Miao;YANG Yiyi(ARTS Group Co.,Ltd.,Suzhou 215123,China;Suzhou Construction Engineering Design and Construction Drawing Review Center,Suzhou 215004,China)
出处
《建筑结构》
CSCD
北大核心
2022年第20期78-83,共6页
Building Structure
基金
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。
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
super high-rise structure
inclined wall transfer
inclined column transfer
performance-based seismic design
tower crown structure
