懸掛建筑結(jié)構(gòu)動力參數(shù)優(yōu)化及地震響應分析
涂永明1，張繼文1，呂志濤1，張濤濤2，周進3
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(1東南大學混凝土與預應力混凝土結(jié)構(gòu)教育部重點實驗室，南京 210096； 2 江蘇藍森建設工程新技術(shù)有限公司， 南京 210009； 3 江蘇省教建項目管理有限公司，南京 210000)［摘要］建立了高層懸掛建筑結(jié)構(gòu)減振體系的簡化計算模型和運動方程，進行了頻域內(nèi)的參數(shù)優(yōu)化和位移時程分析與計算。經(jīng)過參數(shù)優(yōu)化的懸掛建筑結(jié)構(gòu)具有良好的減振避震性能。提出了能同時對懸掛建筑主、次結(jié)構(gòu)的動力響應進行多目標優(yōu)化的參數(shù)分析方法，該方法可以使得懸掛建筑主結(jié)構(gòu)的頻域和時域內(nèi)的位移動力響應分別比普通巨型框架結(jié)構(gòu)降低24%和50%以上，同時次結(jié)構(gòu)的動力響應也達到一個理想的水平。［關鍵詞］懸掛建筑；減振體系；地震響應；參數(shù)優(yōu)化；時程分析Dynamic parameter optimization and seismic response analysis of suspended building structureTu Yongming1， Zhang Jiwen1， Lü Zhitao1， Zhang Taotao2， Zhou Jin3(1 Key Lab of Concret & Prestressed Concret Structure of Ministry of Education, Southeast University, Nanjing 210096，China； 2 Jiangsu Lansen High-Technology Construction Engineering Co., Ltd., Nanjing 210009，China；3 Jiangsu Education Construction Project Management Co., Ltd., Nanjing 210000，China)Abstract:The simplified calculation model and movement equation for high-rise suspended building structure are represented. The dynamic parameters in frequency domain are optimized and the displacement time-history is calculated and analyzed. The results show that the novel suspended building structure with optimized parameters has good dynamic performances. Moreover, a reasonable multi-objective optimization method is proposed, which can simultaneously optimize the dynamic responses of both the main structure and the substructures for the suspended building. Using this method, the displacement responses of the main structure calculated in both frequency domain and time domain decrease over 24% and 50% than that of the ordinary mega-frame structure respectively. Besides, the dynamic responses of substructures can also be controlled at an ideal level.Keywords:suspended building structure; shock-absorption system; seismic response; parameter optimization; time-history analysis國家自然科學基金資助項目（50178018，50808039）；教育部博士點基金新教師項目（20070286095）；江蘇省自然科學基金項目（BK2008148）。作者簡介：涂永明，博士，講師，Email：tuyongming@seu.edu.cn。參考文獻［1］周堅，伍孝波.核筒懸掛結(jié)構(gòu)體系自振特性研究［J］.工程力學，2005，22（1）.［2］涂永明.CFRP索懸掛建筑結(jié)構(gòu)靜力和動力分析及研究［D］.南京：東南大學，2005［3］ZHANG X A, ZHANG J L, WANG D, et al. Controlling characteristics of passive megasubcontrolled frame subjected to random wind loads［J］. Journal of Engineering Mechanics, 2005, 131(10).［4］趙西安.現(xiàn)代高層建筑結(jié)構(gòu)設計［M］.北京：科學出版社，2000［5］R 克拉夫，J 彭津.結(jié)構(gòu)動力學［M］//王光遠，等譯.北京：高等教育出版社，2006［6］房良.巨型框架多功能減振結(jié)構(gòu)體系地震作用下減振原理及其試驗研究［D］.南京：東南大學，2003
