[1]王春林,吕志涛.核筒悬挂结构的动力特性及参数优化[J].东南大学学报(自然科学版),2007,37(2):181-185.[doi:10.3969/j.issn.1001-0505.2007.02.001]
 Wang Chunlin,Lü Zhitao.Dynamic behavior and parameter optimization of core-tube suspension structures[J].Journal of Southeast University (Natural Science Edition),2007,37(2):181-185.[doi:10.3969/j.issn.1001-0505.2007.02.001]
点击复制

核筒悬挂结构的动力特性及参数优化()
分享到:

《东南大学学报(自然科学版)》[ISSN:1001-0505/CN:32-1178/N]

卷:
37
期数:
2007年第2期
页码:
181-185
栏目:
土木工程
出版日期:
2007-03-20

文章信息/Info

Title:
Dynamic behavior and parameter optimization of core-tube suspension structures
作者:
王春林 吕志涛
东南大学混凝土及预应力混凝土结构教育部重点实验室, 南京 210096; 东南大学城市工程科学国际研究中心, 南京 210096
Author(s):
Wang Chunlin Lü Zhitao
Key Laboratory of Concrete and Prestressed Concrete Structures of Ministry of Education, Southeast University, Nanjing 210096,China
International Institute for Urban Systems Engineering, Southeast University, Nanjing 210096,China
关键词:
高层建筑 悬挂结构 动力特性 优化分析 核筒
Keywords:
tall building suspension structure dynamical behavior optimizing analysis core tube
分类号:
TU973.19
DOI:
10.3969/j.issn.1001-0505.2007.02.001
摘要:
基于欧拉-伯努利梁理论和层剪切模型,应用拉格朗日方程推导了单段核筒悬挂减振控制结构的运动方程.在此基础上通过时程分析评价了结构的减振性能,应用复模态叠加法对结构的响应进行了频域分析,以主体核筒顶点位移和悬挂楼面层间位移响应为优化目标,对悬挂楼面的侧移刚度、阻尼器的刚度和阻尼系数进行优化.分析结果表明,存在最优的侧移刚度和阻尼器刚度使得核筒位移响应最小,存在较优的阻尼器阻尼系数可同时有效抑制核筒和悬挂楼面的响应,所以通过合理设置结构参数能够显著减小核筒悬挂减振结构的动力响应.
Abstract:
Based on Euler-Bernoulli beam theory and the floor shear vibration model, the motion equation of a single core-tube suspension structure is derived through Lagrange’s formulation. The vibration absorption performance is demonstrated by time-history analysis, and the structural responses are calculated in the frequency-domain by complex mode superposition method. Structural parameters such as the lateral stiffness of suspended floors, damping coefficient and damper stiffness are optimized, considering core-tube top displacement and inter-storey drift of the suspended floors as optimization objectives. Analytical results show that there are optimal lateral stiffness and damper stiffness leading to the minimum displacement, and satisfactory damping coefficient may effectively control the responses of the core-tube and suspended floors. Consequently, setting reasonable structural parameters could reduce the dynamic response.

参考文献/References:

[1] Feng M Q,Mita A.Vibration control of tall building using mega subconfiguration[J]. Journal of Engineering Mechanics,1995,121(10):1082-1088.
[2] Wang C L,Lü Z T.Study on seismic responses of reinforced concrete core-tube suspended building[C] //Proceedings of the International Symposium on Innovation & Sustainability of Structures in Civil Engineering.Nanjing,2005:2898-2906.
[3] 刘郁馨,吕志涛.单段悬挂结构随机动力参数优化解[J].南京建筑工程学院学报:自然科学版,2001,56(1):1-8.
  Liu Yuxing,Lü Zhitao.Optimal solution of random dynamic action for suspension building structures[J].Journal of Nanjing Architectural and Civil Engineering Institute:Natural Science Edition,2001,56(1):1-8.(in Chinese)
[4] 夏逸鸣,赵惠麟,左晓宝.悬挂结构地震反应的样条有限条分析[J].东南大学学报:自然科学版,2000,30(4):33-38.
  Xia Yimin,Zhao Huilin,Zuo Xiaobao.Comparative analysis of earthquake response of suspension structures[J]. Journal of Southeast University:Natural Science Edition,2000,30(4):33-38.(in Chinese)
[5] Clough R W,Penzien J. Dynamic of structures[M].Berkeley,CA:Computers & Structures Inc,1995.
[6] Low K H.On the eigenfrequencies for mass loaded beams under classical boundary conditions[J].Journal of Sound and Vibration,1998,215(2):381-389.
[7] Jalili N,Esmailzadeh E.A nonlinear double-winged adaptive neutralizer for optimum structural vibration suppression[J].Communications in Nonlinear Science and Numerical Simulation,2003,8(2):113-134.
[8] 徐赵东,郭迎庆.Matlab语言在建筑抗震工程中的应用[M].北京:科学出版社,2004.

相似文献/References:

[1]刘先觉,鲍家声,蔡冠丽.高层建筑若干问题[J].东南大学学报(自然科学版),1978,8(3):93.[doi:10.3969/j.issn.1001-0505.1978.03.006]
 [J].Journal of Southeast University (Natural Science Edition),1978,8(2):93.[doi:10.3969/j.issn.1001-0505.1978.03.006]
[2]王春林,吕志涛.基于地震动特性的悬挂减振结构性能[J].东南大学学报(自然科学版),2012,42(4):719.[doi:10.3969/j.issn.1001-0505.2012.04.027]
 Wang Chunlin,Lü Zhitao.Performance of vibration-controlling suspended-floor structures based on characteristics of earthquake motions[J].Journal of Southeast University (Natural Science Edition),2012,42(2):719.[doi:10.3969/j.issn.1001-0505.2012.04.027]

备注/Memo

备注/Memo:
基金项目: 国家自然科学基金资助项目(50178018)、东南大学优秀学位论文基金资助项目.
作者简介: 王春林(1980—),男,博士生; 吕志涛(联系人),男,教授,博士生导师,中国工程院院士,luzhtao@seu.edu.cn.
更新日期/Last Update: 2007-03-20