高烈度區(qū)某框架-核心筒結(jié)構(gòu)耗能減震控制研究*
裘趙云，繆志偉，李愛群
- 摘 要
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裘趙云，繆志偉，李愛群（東南大學混凝土及預應力混凝土結(jié)構(gòu)教育部重點實驗室， 南京 210096）［摘要］針對位于高烈度區(qū)的某高層建筑，采用高層結(jié)構(gòu)減震控制理論，選取非線性粘滯流體阻尼器耗能裝置對結(jié)構(gòu)進行減震控制。首先基于通用有限元分析軟件平臺建立了三維結(jié)構(gòu)彈塑性分析模型，然后分別對多條地震波輸入下減震前后結(jié)構(gòu)的動力響應進行了彈塑性時程分析，并從力、變形和能量三大指標方面對減震前后的結(jié)構(gòu)在多遇和罕遇地震作用下的地震響應結(jié)果進行了對比分析。結(jié)果表明：采用非線性粘滯流體阻尼器減震方案可以提高結(jié)構(gòu)的整體抗震性能，起到良好的減震效果。［關鍵詞］減震控制；框架-核心筒；粘滯流體阻尼器；彈塑性時程分析中圖分類號：TU398+.2 文獻標識碼：A 文章編號：1002-848X(2013)01-0005-05Study on energy dissipation and damping control of a frame-tube structure in high seismic intensity regionQiu Zhaoyun, Miao Zhiwei, Li Aiqun(Key Laboratory of Concrete and Prestressed Concrete Structures of China Education Ministry, Southeast University, Nanjing 210096, China）Abstract: Based on the structural control theory, nonlinear viscous dampers were used in a high rise building in high seismic intensity region to reduce the structural responses under strong earthquakes. Firstly, the 3D finite element model of the structure was established by general finite element software. Then, the nonlinear analysis program was compiled to calculate the seismic responses of the structure after inputting several earthquake waves. The dynamic response of the uncontrolled structure and controlled structure were investigated under the excitation of minor and major earthquake from three aspects of force, displacement and energy. The analysis result indicates that using viscous dampers can effectively improve the structural seismic performance.Keywords: vibration control; frame-tube structure; viscous damper; nonlinear time history analysis*國家自然科學基金青年項目（51008078）, 東南大學新進博士科研啟動項目（9205000030）, 東南大學基本科研業(yè)務費創(chuàng)新基金項目（104.205.2.5）通訊作者：繆志偉，博士，講師，Email：zhiweim@gmail.com。參考文獻［1］徐衛(wèi)賓.鋼筋混凝土摩擦耗能支撐框架-核心筒結(jié)構(gòu)的工程應用研究［D］. 昆明:昆明理工大學，2008.［2］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.［3］歐進萍.土木工程結(jié)構(gòu)振動的智能控制研究與發(fā)展［C］//國際結(jié)構(gòu)控制與健康診斷研討會論文集. 2000.［4］葉列平, 陸新征, 馬千里, 等. 混凝土結(jié)構(gòu)抗震非線性分析模型、方法及算例［J］.工程力學,2006,23(S2): 131-140.［5］CHIA-MING UANG, BETREO VITELMO V. Use of energy as a design criterion in earthquakeresistant design［R］. Report No. UCB/EERC-88/18. Earthquake Engineering Research Center, University of Califrnia, Berkeley, 1998.［6］陸新征,葉列平,繆志偉，等.建筑抗震彈塑性分析［M］.北京:中國建筑工業(yè)出版社,2009.［7］林旭川,陸新征,繆志偉,等.基于分層殼單元的RC 核心筒三維全過程有限元分析［C］//第十一屆高層建筑抗震技術交流會論文集.昆明, 2007: 184-189.［8］MARC. User's manual［M］. MSC. Software Corporation, 2003.
