（1 合肥工业大学土木与水利工程学院， 合肥 230009； 2 中国五洲工程设计集团有限公司， 北京 100053）

［摘要］国家金融信息大厦高360m，采用框架/密柱筒-核心筒结构体系，结构在60层做一次方形变圆形的转换。对转换层结构进行了详细的有限元分析，获得了转换层在罕遇地震作用下的应力状态，评估了转换桁架、核心筒、钢管混凝土柱、钢梁等构件的震后性能状况。并根据转换层模型的力学分析结果，对转换桁架上弦杆节点进行了精细的分析设计，使其满足性能要求。

［关键词］国家金融信息大厦； 超高层建筑； 转换层； 转换桁架

中图分类号：TU973-2文献标识码：A文章编号：1002-848X(2016)16-0046-06

Analysis of transfer floor structure in National Financial Information Building

Yi Zhonglou1, Niu Zhongrong1, Ding Dayi2, Li Zhaofeng1

(1 School of Civil Engineering，Hefei University of Technology, Hefei 230009, China;2 China Wuzhou Engineering Group Co., Ltd., Beijing 100053, China)

Abstract:National Financial Information Building is a mega frame tube-corewall structure with  height of 360m. The 60th floor of the building is designed as a transfer floor of structural change from square to circle shape. A detailed finite element analysis was conducted on the transfer floor structure to obtain the stress state  under the rare earthquake and evaluate the post-earthquake properties of components including transfer truss, corewall, concrete filled steel tubular column and steel beams. And according to the mechanical analysis results of transfer floor model, a fine analysis and design was carried out on the upper chord member joint of transfer floor, so that it could meet the performance requirements.

Keywords:National Financial Information Building； super high-rise building; transfer floor; transfer truss

*国家自然科学基金资助项目(11272111)。

作者简介：易中楼，硕士研究生，Email：hsslyzl@126.com。