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(中國(guó)建筑西南設(shè)計(jì)研究院有限公司，成都 610081)

［摘要］   成都百貨大樓為一高度162.75m的超限高層建筑，塔樓與裙房連成整體且偏置于裙房一隅，塔樓采用框架-核心筒結(jié)構(gòu)(核心筒偏置)。在相對(duì)核心筒偏置的另一側(cè)外圍框架柱間設(shè)置鋼支撐，該支撐僅從裙房屋面起設(shè)置。針對(duì)超限特點(diǎn)介紹了結(jié)構(gòu)方案決策過(guò)程、三水準(zhǔn)抗震設(shè)計(jì)思路及具體分析方法，重點(diǎn)研究了塔樓偏置及塔樓核心筒偏置對(duì)結(jié)構(gòu)的不利影響以及采取的相應(yīng)加強(qiáng)措施。
［關(guān)鍵詞］   塔樓偏置；   扭轉(zhuǎn)不規(guī)則；   鋼支撐；   抗震性能；   結(jié)構(gòu)分析

Structure design of Chengdu Department Store
Feng Zhongwei, Yang Xiandong, Wang Liwei
(China Southwest Architectural Design and Research Institute Co., Ltd., Chengdu 610081, China)
Abstract:Chengdu Department Store is a high-rise building with a height of 162.75m. The tower connects with the podium at one corner of the podium. The tower is a frame-core tube structure, and the core tube is offset. Steel diagonal braces were installed between the columns of the external framework which is opposite to the core tube, only from the roof of the podium. According to the characters of the high-rise building, the structural scheme selection process, the detailed analysis method with three-level seismic design of this structure were introduced. The disadvantage effects induced by the offset of the core tube and the offset of the tower were investigated with the corresponding strengthening measures in detail.
Keywords:offset tower; irregular torsion; steel diagonal brace; earthquake resistant behavior; structure analysis
作者簡(jiǎn)介：馮中偉，教授級(jí)高級(jí)工程師，Email：fc09@xnjz.com。

參考文獻(xiàn)
［1］   JGJ3—2002高層建筑混凝土結(jié)構(gòu)技術(shù)規(guī)程［S］. 北京：中國(guó)建筑工業(yè)出版社，2002.
［2］   GB50011—2001建筑抗震設(shè)計(jì)規(guī)范［S］. 2008年版. 北京：中國(guó)建筑工業(yè)出版社，2008.