杭州湖濱國際名品街塔樓改造工程結構設計
程健，張群力
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程健，張群力（浙江省建筑設計研究院，杭州 310006）［摘要］杭州湖濱國際名品街塔樓工程改造范圍非常廣，結構設計難度非常大。主要的改造內容有：1）東塔的底部拆除兩層樓板，新加一層樓板；2）西塔的底部拆除三層樓板， 新加兩層樓板；3）兩塔通過新增的三層裙房和標準層連廊連為一體，形成了帶錯層的連體結構，結構的體型發(fā)生了重大變化。從整體結構出發(fā)，討論結構體系的選擇。通過調整結構布置來優(yōu)化各項抗震指標，進而深化局部構件的加固和關鍵構件的節(jié)點設計，并分析了這些構件的優(yōu)缺點。［關鍵詞］改造加固;結構體系;連體結構;錯層結構;節(jié)點中圖分類號：TU- 375-05, TU 398-2文獻標識碼：B文章編號：1002-848X(2012)08-0147-04Structural retrofit of the main towers of Hangzhou Hubin International Boutique CompoundCheng Jian, Zhang Qunli(Zhejiang Province Institute of Architectural Design and Research, Hangzhou 310006, China)Abstract: The retrofit project of Hangzhou Hubin International Boutique Compound involved major transformation of the original structural system, which brought extreme difficulty to structural design. The major retrofit work includes: 1) two bottom floors of the east tower were demolished for the construction of a new floor; 2) three bottom floors of the west tower were demolished for the construction of two new floors; 3) the new floors of the two towers are connected by new built three-loor podium, and the original standard floors of the two towers are also connected by a series of sky-ridges. The two isolated towers are transformed into a connected structure with split levels, which makes the structural system has a great change. The structural design procedure is summarized for this project. The optimization of the overall structural system is presented, the strengthening of structural members are discussed as well as the design of key structural joints, and their characteristics are compared.Keywords: retrofit and strengthening;structural system;connected structure;split evel structure;joint作者簡介：程健，碩士，一級注冊結構工程師，Email：16468204@qq.om。參考文獻［1］GB 50011—2010 建筑抗震設計規(guī)范［S］. 北京：中國建筑工業(yè)出版社， 2010.［2］JGJ 3—2010 高層建筑混凝土結構技術規(guī)程［S］. 北京：中國建筑工業(yè)出版社， 2011.［3］湖濱路商貿(mào)旅游特色街工程檢測和抗震鑒定報告［R］.杭州：質量檢查中心， 2009.
