加入多维隔减震装置建筑结构的水平向与竖向综合优化
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摘要
介绍了振动台试验及多维隔减震装置,并对振动台试验进行了有限元模拟。通过有限元模拟和振动台试验得到的自振频率、加速度和层间位移反应的对比分析,证明了有限元模型的正确性。在此基础上,建立参数优化模型,利用遗传算法对多维隔减震装置进行了参数优化设计,并对装置参数取最优解和非最优解时结构的动力反应进行了对比分析,结果表明,优化分析后建筑结构的水平向加速度、水平向位移和竖向加速度均明显降低。
In this paper,we first briefly introduced the shaking table test and multi-dimensional isolation and mitigation device,and then simulated shaking table test by finite element program.Results of the finite element simulation were compared with experimental data in respect of natural frequencies,acceleration and inter-story displacement responses,proving that the finite element model is valid.On this basis,a parametric optimization model was developed and the genetic algorithm was used to complete the parametric optimization of multi-dimensional isolation and mitigation device.Afterwards,structure dynamic responses were compared with optimal and sub-optimal parameters.The results show that horizontal acceleration,horizontal displacement and vertical acceleration of building structure have been reduced obviously after optimization.
In this paper,we first briefly introduced the shaking table test and multi-dimensional isolation and mitigation device,and then simulated shaking table test by finite element program.Results of the finite element simulation were compared with experimental data in respect of natural frequencies,acceleration and inter-story displacement responses,proving that the finite element model is valid.On this basis,a parametric optimization model was developed and the genetic algorithm was used to complete the parametric optimization of multi-dimensional isolation and mitigation device.Afterwards,structure dynamic responses were compared with optimal and sub-optimal parameters.The results show that horizontal acceleration,horizontal displacement and vertical acceleration of building structure have been reduced obviously after optimization.
引文
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[7]雷英杰,张善文,李续武,等.MATLAB遗传算法工具箱及其应用[M].西安:西安电子科技大学出版社,2005:62-106.Lei Yingjie,Zhang Shanwen,Li Xuwu,et al.MAT-LAB Genetic Algorithm Toolbox and Application[M].Xi’an:Xidian University Press,2005:62-106.(in Chi-nese)
[8]朱宏伟,刘浩.基于MATLAB与ANSYS的结构优化设计[J].大连民族学院学报,2011,13(3):284-287.Zhu Hongwei,Liu Hao.Structure optimization design based on MATLAB and ANSYS[J].J Dalian Natl Univ,2011,13(3):284-287.(in Chinese)
[2]时本强.多维减震支座及其结构竖向试验研究[D].南京:东南大学,2007.Shi Benqiang.Vertical Experimental Study on Struc-tures with Multi-Dimensional Isolation and MitigationBearings[D].Nanjing:Southeast University,2007.(in Chinese)
[3]曾晓.水平地震作用下加入多维隔减震支座结构的试验研究[D].南京:东南大学,2007.Zeng Xiao.Experimental Study on Multi-Dimensional Mitigation Bearings and the Structure with Them Under Horizontal Earthquakes[D].Nanjing:Southeast Uni-versity,2007.(in Chinese)
[4]王绍安,徐赵东,黄兴淮,等.加入多维隔减震装置的结构水平向拟动力试验及动力反应分析[J/OL].中国科技论文在线[2012-12-31].http://www.paper.edu.cn/releasepaper/content/201212-1209.Wang Shaoan,Xu Zhaodong,Huang Xinghuai,et al.Pseudo-dynamic test and dynamic response analysis on structure with multi-dimensional earthquake isolationand mitigation device[J/OL].Sciencepaper Online[2012-12-31].http://www.paper.edu.cn/releasepa-per/content/201212-1209.(in Chinese)
[5]Lindley P B.Natural rubber structural bearings[J].Joint Seal Bear Syst Concr Struct.ACI,1981,1:353-378.
[6]徐斌,周丽萍,董小凤.基于能量和控制效果指标的黏滞阻尼器优化设计[J/OL].中国科技论文在线[2012-12-28].http://www.paper.edu.cn/releasepaper/con-tent/201212-1084.Xu Bin,Zhou Liping,Dong Xiaofeng.Optimization de-sign of viscous dampers based on energy and control effect indexes[J/OL].Sciencepaper Online[2012-12-28].http://www.paper.edu.cn/releasepaper/con-tent/201212-1084.(in Chinese)
[7]雷英杰,张善文,李续武,等.MATLAB遗传算法工具箱及其应用[M].西安:西安电子科技大学出版社,2005:62-106.Lei Yingjie,Zhang Shanwen,Li Xuwu,et al.MAT-LAB Genetic Algorithm Toolbox and Application[M].Xi’an:Xidian University Press,2005:62-106.(in Chi-nese)
[8]朱宏伟,刘浩.基于MATLAB与ANSYS的结构优化设计[J].大连民族学院学报,2011,13(3):284-287.Zhu Hongwei,Liu Hao.Structure optimization design based on MATLAB and ANSYS[J].J Dalian Natl Univ,2011,13(3):284-287.(in Chinese)
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