無錫國金中心框架-核心筒-剛臂結構設計
劉晴云,閆鋒,鄒瑾
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劉晴云,閆鋒,鄒瑾(華東建筑設計研究院有限公司,上海 200002)[摘要]無錫國金中心T1塔樓大屋面高度314m,建筑總高339m,采用樁端樁側后注漿的鉆孔灌注樁和厚度為3.5m的基礎底板,選擇了框架-核心筒-剛臂結構體系。對于結構的風荷載和地震作用取值、振型信息、風和地震作用下的計算結果比較、規(guī)范驗算進行了介紹;并且對于結構設計中幾個關鍵問題:地面90m以下存在含溶洞的巖層、剪力墻中配置鋼骨以減小墻體厚度和結構重量、伸臂桁架與環(huán)帶桁架的設置、豎向變形差異問題處理以及彈塑性分析等,進行了深入探討。[關鍵詞]超高層結構;框架-核心筒-剛臂結構;剪力墻;鋼骨中圖分類號:TU398.7文獻標識碼:A文章編號:1002-848X(2012)05-0079-04Structural design on frame-core-outriggers system of Wuxi Guojin CentreLiu Qingyun, Yan Feng, Zou Jin(East China Architectural Design & Research Institute Co., Ltd., Shanghai 200002, China)Abstract: Main roof height of Wuxi Guojin Centre is 314m, full height of the building is 339m. Cast-in-site piles with post grouting technology and mat foundation of 3.5m thickness are adopted, and frame-core-outriggers structural system is chosen in this structure. Rudimentary information was introduced, such as wind load, earthquake effect, vibration mode, calculating result under wind and earthquake, checking according to codes. Several key problems were deeply discussed, such as terrane with holes underground 90m deep, placing steel in shear walls to reducing thickness of walls and structural weight, setting outriggers and belt trusses, dealing with vertical deformation difference and elasto-plastic analysis.Keywords: super high-rise building; frame-core-outriggers structure;shear wall; steel作者簡介:劉晴云,教授級高工,Email:qingyun_liu@ecadi.com。參考文獻[1] 華東建筑設計研究院有限公司.國金中心(無錫市南長區(qū)XDG-2006-15號地塊商業(yè)項目)T1塔樓超限高層抗震審查報告[R].2009.[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] 同濟大學土木工程防災國家重點實驗室.無錫市南長區(qū)XDG-2006-15 號地塊商業(yè)項目1號塔樓風洞試驗研究報告[R].2009.[4] 建設綜合勘察研究設計院.無錫市南長區(qū)XDG-2006-15號地塊商業(yè)項目物探技術咨詢報告[R]. 2008.[5] 周建龍,閆鋒.超高層結構豎向變形及差異問題分析與處理[J].建筑結構,2007,36(5):10-13.[6] 徐培福,傅學怡,王翠坤,等. 復雜高層建筑結構設計[M]. 北京:中國建筑工業(yè)出版社,2005.