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（1 合肥工業(yè)大學(xué)土木與水利工程學(xué)院， 合肥 230009； 2 中國(guó)五洲工程設(shè)計(jì)集團(tuán)有限公司， 北京 100053）

［摘要］國(guó)家金融信息大廈高360m，采用框架/密柱筒-核心筒結(jié)構(gòu)體系，結(jié)構(gòu)在60層做一次方形變圓形的轉(zhuǎn)換。對(duì)轉(zhuǎn)換層結(jié)構(gòu)進(jìn)行了詳細(xì)的有限元分析，獲得了轉(zhuǎn)換層在罕遇地震作用下的應(yīng)力狀態(tài)，評(píng)估了轉(zhuǎn)換桁架、核心筒、鋼管混凝土柱、鋼梁等構(gòu)件的震后性能狀況。并根據(jù)轉(zhuǎn)換層模型的力學(xué)分析結(jié)果，對(duì)轉(zhuǎn)換桁架上弦桿節(jié)點(diǎn)進(jìn)行了精細(xì)的分析設(shè)計(jì)，使其滿足性能要求。

［關(guān)鍵詞］國(guó)家金融信息大廈； 超高層建筑； 轉(zhuǎn)換層； 轉(zhuǎn)換桁架

中圖分類號(hào)：TU973-2文獻(xiàn)標(biāo)識(shí)碼：A文章編號(hào)：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

*國(guó)家自然科學(xué)基金資助項(xiàng)目(11272111)。

作者簡(jiǎn)介：易中樓，碩士研究生，Email：hsslyzl@126.com。