小底盤高裙房雙塔超高層結(jié)構(gòu)單塔模型選擇方法
陳瑛1，劉鵬飛2，孫洪波2，張曉靜2，李霞2
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陳瑛1，劉鵬飛2，孫洪波2，張曉靜2，李霞2（1 山東大學土木系， 濟南 250061； 2 山東恒信建筑設(shè)計有限公司， 濟南 250100）［摘要］由于各塔樓之間的扭轉(zhuǎn)耦聯(lián),小底盤高裙房雙塔樓結(jié)構(gòu)表現(xiàn)出復雜的結(jié)構(gòu)特性。根據(jù)整體模型計算的自振周期，很難判斷具體屬于哪個塔樓。為控制周期比，需要建立多個單塔模型來驗算周期比，單塔模型的剖分應(yīng)使其計算的位移、內(nèi)力與整體模型計算結(jié)果盡量一致。以某實際工程為例，提出了小底盤高裙房雙塔結(jié)構(gòu)單塔模型的剖分方法，對3個計算模型進行結(jié)構(gòu)靜力彈性分析，比較了各模型的自振周期、位移比、剪重比和剛重比，得出一些有益的結(jié)論，可為類似工程的設(shè)計提供借鑒。［關(guān)鍵詞］超高層結(jié)構(gòu); 小底盤高裙房雙塔; 單塔模型； 模型剖分； 周期比中圖分類號：TU3987文獻標識碼：A文章編號：1002848X(2013)11006803Single tower model selection of super highrise twintower structure with smallchassis and high-podiumChen Ying1， Liu Pengfei2， Sun Hongbo2， Zhang Xiaojing2， Li Xia2 (1 Department of Civil Engineering, Shandong University, Jinan 250061, China; 2 Shandong Hengxin Architecture Design Co., Ltd., Jinan 250100, China)Abstract:Due to the torsion coupling between towers, the twintower structure with smallchassis and highpodium exhibits the complex structural characteristics. The period belongs to which tower can not be evaluated by the overall calculations. The multiple single tower models should be set up to control the period ratio. The results of calculation such as displacement and internal force should be uniform between single tower model and overall model. The separating method for obtaining single tower model was investigated by a practical project, The results of static elastic analysis of three different models, such as the period, the displacement ratio, the shearweight ratio, and the rigidity-gravity ratio, were compared. The conclusion is expected to provide a useful reference for the analysis and design of similar highrise building structures.Keywords:super highrise building; twintower structure with smallchassis and highpodium; single tower model; model partition; period ratio*山東省優(yōu)秀中青年科學家科研獎勵基金（2008BS04017）,國家自然科學基金（50779032）。作者簡介：陳瑛,博士,副教授,Email:chenying@sdu.edu.cn。參考文獻［1］許利惟. 底盤與塔樓剛度比對非對稱塔樓結(jié)構(gòu)地震響應(yīng)的影響［J］. 常州工學院學報：自然科學版,2005,18(1):5456.［2］余繼興，張明，沈蒲生. 大底盤三塔高層結(jié)構(gòu)地震反應(yīng)［C］//全國第十屆混凝土結(jié)構(gòu)基本理論及工程應(yīng)用學術(shù)會議,2008:146150.［3］劉鵬飛,王建,王慧．青島財富中心超限高層建筑結(jié)構(gòu)概念設(shè)計［J］. 建筑結(jié)構(gòu),2008,38(5):15.［4］劉鵬飛,孫洪波．青島財富中心超限高層Pushover分析［J］．青島理工大學學報,2009,30(3): 6974.［5］徐培福,黃吉鋒,韋承基．高層建筑結(jié)構(gòu)扭轉(zhuǎn)反應(yīng)控制的討論［J］．建筑結(jié)構(gòu), 2006,36(7):110.［6］魏璉,王森．水平地震作用下大底盤多塔結(jié)構(gòu)抗扭設(shè)計方法［J］．建筑結(jié)構(gòu), 2005,35(8):37.［7］范重,吳學敏．帶有雙塔高層建筑結(jié)構(gòu)動力分析［J］．建筑結(jié)構(gòu)學報，1996, 17(6):1118.［8］楊學林,意德清．多塔樓高層結(jié)構(gòu)振動特性與抗震設(shè)計［J］．工程力學,2001,18(2):7781.［9］包世華,王建東. 大底盤多塔樓結(jié)構(gòu)的振動計算［J］. 建筑結(jié)構(gòu)，1996,26(6):39.［10］楊星. PKPM結(jié)構(gòu)軟件工程應(yīng)用及實例剖析［M］．北京：中國建筑工業(yè)出版社，2010.
