（中南建筑设计院股份有限公司，武汉430071）

［摘要］铁投·碳汇大厦项目由超高层商务办公塔楼及碳交易大厅裙楼组成，塔楼采用钢筋混凝土框架-核心筒结构体系，裙楼采用钢框架结构。因建筑功能需要，塔楼和裙楼连为一体形成多项不规则，属于不规则超限高层。采用YJK及ETABS软件对结构进行建模计算及指标对比，经计算，结构的各项指标均满足设计要求。采用Perform-3D软件对结构进行了动力弹塑性时程分析，表明结构在罕遇地震下损伤程度符合设计要求。针对裙房双向大跨度楼盖进行了人行舒适度分析及抗连续倒塌分析，结果均满足设计要求，且进一步确保了结构的舒适性及安全冗余度。

［关键词］铁投·碳汇大厦； 超限高层； 大跨度楼盖； 跨层桁架； 人行舒适度； 抗连续倒塌

中图分类号：TU398+.9， TU391文献标识码：A文章编号：1002-848X(2020)08-0084-04

Structural design of Tietou Tanhui Tower

WU Yifeng, YUAN Liming, DONG Jun

(Central-South Architectural Design Institute Co., Ltd., Wuhan 430071, China)

Abstract:Tietou Tanhui Tower consists of a super high-rise office building and a carbon trading podium building. The office building adopts reinforced concrete frame-corewall structural system and the podium building adopts steel frame structural system. Due to the requirements of architectural function, the tower and the podium are connected into one structure to form a number of irregularities, so it is an irregular out-of-code high-rise building. YJK and ETABS software were used to model the structure and the indicators were compared. All the calculated indicators of the structure met the design requirements after caculation. The dynamic elastoplastic time-history analysis of the structure was carried out by using PERFORM\|3D software, the result shows that the damage degree of the structure under rare earthquakes meets the design requirements. Pedestrian comfort analysis and anti-progressive collapse analysis were performed for the two-way large-span floor of the podium building. The results meet the design requirements and further ensure the structural comfort and safety redundancy.

Keywords:Tietou Tanhui Tower; out-of-code high-rise building; large-span floor; cross-layer truss; pedestrian comfort; anti-progressive collapse

作者简介：吴逸枫，硕士，工程师，一级注册结构工程师，Email:ethanwu1990@126.com。