基于改进遗传算法的大跨机库柱间消能支撑的位置优化研究
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摘要
大跨维修机库动力特性复杂,针对该类结构的减震研究则刚刚起步。结合大跨机库的地震响应特点,采用布置柱间消能支撑来进行机库结构地震响应的被动控制。结合减震结构优化模型特点与主要优化算法的数学原理,选取遗传算法作为结构减震装置位置优化分析工具,并在Matlab遗传工具箱基础上进行改进以提高寻优效率,通过编制目标函数程序实现改进遗传算法在结构被动控制系统位置优化分析中的应用。最后设置两类不同的适应度函数,分别进行机库结构减震位置优化与考虑阻尼器耗能效率的减震方案优化分析,结果表明遗传算法以及相应的优化程序可以有效地实现机库结构减震位置优化分析。
Dynamic characteristics of long-span hangar are very complex and the study on the shock absorption of this type of structure is just at the early stage.Combined with seismic response characteristics,fluid viscous dampers are set between columns and joints of the roof to reduce the seismic response.Based on the characteristics of optimization model of seismic reduction structure,the genetic optimization algorithm is employed for the optimization analysis of damper location.The algorithm is improved for the increased optimization efficiency and accuracy.By means of the Matlab toolbox,a damper program for the location optimization of seismic reduction structure is coded.Two types of fitness functions are provided and used for the damper location optimization of one hangar.Results show that the location optimization analysis may be conducted effectively by using the proposed optimization algorithm and the coded program.
Dynamic characteristics of long-span hangar are very complex and the study on the shock absorption of this type of structure is just at the early stage.Combined with seismic response characteristics,fluid viscous dampers are set between columns and joints of the roof to reduce the seismic response.Based on the characteristics of optimization model of seismic reduction structure,the genetic optimization algorithm is employed for the optimization analysis of damper location.The algorithm is improved for the increased optimization efficiency and accuracy.By means of the Matlab toolbox,a damper program for the location optimization of seismic reduction structure is coded.Two types of fitness functions are provided and used for the damper location optimization of one hangar.Results show that the location optimization analysis may be conducted effectively by using the proposed optimization algorithm and the coded program.
引文
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[11]涂青,徐赵东,彭军.隔减震结构中黏弹性阻尼装置的遗传算法优化分析[J].东南大学学报:自然科学版,2009,39(1):73-77(Tu Qing,Xu Zhaodong,Peng Jun.Parametric optimization of viscoelastic device in earthquakeisolation and mitigation of structures[J].Journal ofSoutheast University:Natural Science Edition,2009,39(1):73-77(in Chinese))
[12]曲激婷,李宏男,李钢.位移型消能器在结构减震控制中的位置优化研究[J].工程力学,2009,26(1):43-48(Qu Jiting,Li Hongnan,Li Gang.Optimal placement ofdisplacement-based energy dissipative devices for passiveresponse control[J].Engineering Mechanics,2009,26(1):43-48(in Chinese))
[13]Pezeshk S,Camp C V,Chen D.Design of nonlinearframed structures using genetic optimization[J].Journal ofStructural Engineering,2000,126(3):382-388
[14]玄光男,程润伟.遗传算法与工程设计[M].北京:科学出版社,2000:35-37
[15]雷英杰,张善文,李继武,等.MATLAB遗传算法工具箱及应用[M].西安:西安电子科技大学出版社,2004:146-207
[2]曹资,薛素铎.空间结构抗震理论与设计[M].北京:科学出版社,2006(Cao Zi,Xue Suduo.Seismic analysis anddesign of spatial structures[M].Beijing:Science Press,2006(in Chinese))
[3]唐柏鉴,宋雪峰,沈之容.吉斯达海门商务馆屋盖结构多维抗震设计研究[J].建筑结构,2007,37(2):27-30(Tang Baijian,Song Xuefeng,Shen Zhirong.Design andresearch of roof structure of GSL commercial palace undermultiple earthquake excitation[J].Building Structure,2007,37(2):27-30(in Chinese))
[4]徐庆阳,李爱群,张洁,等.大跨维修机库整体模型的地震响应研究[J].工程抗震与加固改造,2013,34(5):13-19(Xu Qingyang,Li Aiqun,Zhang Jie,et al.Integrated model seismic response analysis of long-spanmaintenance hangar[J].Earthquake Resistant Engineeringand Retrofitting,2013,34(5):13-19(in Chinese))
[5]Soong T T,Dargush G F.Passive energy dissipationsystems in structural engineering[M].New York:JohnWiley and Sons,1997
[6]范峰,沈世钊.网壳结构的粘弹阻尼器减振分析[J].地震工程与工程振动,2003,23(3):156-159(Fan Feng,Shen Shizhao.Vibration reducing analysis of single-layerreticulated shells with viscous-elastic dampers[J].Earthquake Engineering and Engineering Vibration,2003,23(3):156-159(in Chinese))
[7]薛素铎,凌和海.粘弹性阻尼器在网架结构减震控制中的优化设置[J].建筑结构学报,2007,28(4):51-57,75(Xue Suduo,Ling Hehai.Optimum installation ofviscoelastic dampers in space frame structures[J].Journalof Building Structures,2007,28(4):51-57,75(inChinese))
[8]周福霖.工程结构减震控制[M].北京:地震出版社,1997:66-78
[9]王立伟,蔡新江,田石柱.黏滞阻尼器耗能减振工程应用设计方法研究[J].地震工程与工程振动,2011,31(3):161-167(Wang Liwei,Cai Xinjiang,Tian Shizhu.Research on practical design method using liquid viscousdamper passive energy dissipation in buildings[J].Earthquake Engineering and Engineering Vibration,2011,31(3):161-167(in Chinese))
[10]李涛,张洵安.巨子型有控结构体系中黏滞阻尼器参数研究[J].地震工程与工程振动,2011,31(4):71-76(LiTao,Zhang Xun’an.Research on parameters of viscousdampers inserted in MSCSS[J].Earthquake Engineeringand Engineering Vibration,2011,31(4):71-76(inChinese))
[11]涂青,徐赵东,彭军.隔减震结构中黏弹性阻尼装置的遗传算法优化分析[J].东南大学学报:自然科学版,2009,39(1):73-77(Tu Qing,Xu Zhaodong,Peng Jun.Parametric optimization of viscoelastic device in earthquakeisolation and mitigation of structures[J].Journal ofSoutheast University:Natural Science Edition,2009,39(1):73-77(in Chinese))
[12]曲激婷,李宏男,李钢.位移型消能器在结构减震控制中的位置优化研究[J].工程力学,2009,26(1):43-48(Qu Jiting,Li Hongnan,Li Gang.Optimal placement ofdisplacement-based energy dissipative devices for passiveresponse control[J].Engineering Mechanics,2009,26(1):43-48(in Chinese))
[13]Pezeshk S,Camp C V,Chen D.Design of nonlinearframed structures using genetic optimization[J].Journal ofStructural Engineering,2000,126(3):382-388
[14]玄光男,程润伟.遗传算法与工程设计[M].北京:科学出版社,2000:35-37
[15]雷英杰,张善文,李继武,等.MATLAB遗传算法工具箱及应用[M].西安:西安电子科技大学出版社,2004:146-207
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