邻体结构摩擦阻尼控制体系地震反应分析
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摘要
对邻体结构摩擦阻尼控制体系的地震反应进行了仿真计算和参数分析。针对摩擦阻尼器提出了理想弹塑性和Bouc-Wen滞回模型2种分析模型,计算结果证明2种模型吻合良好。选取子结构顶层最大位移和加速度以及体系总耗能和阻尼器耗能比为控制效果指标,分别对单自由度和多自由度邻体结构进行仿真计算和摩擦阻尼器参数分析,结果表明,摩擦阻尼器参数取值对结构减震效果影响显著,通过合理设计,摩擦阻尼器能有效控制各子结构的地震反应,取得显著的减震效果。
In the paper,the seismic responses of adjacent-structure-system connected with friction damper were studied and the parameters influence was analyzed.Two numerical models,ideal bilinear model and Bouc-Wen hysteretic model of friction dampers are proposed for adjacent structure.It's found that the proposed two numerical models are accorded with each other perfectly.The maximal displacement and acceleration of top floor of the sub-structure,the total energy dissipation of system and the ratio of damper energy dissipation wre proposed as targets of control effect.Then the seismic responses of adjacent single-degree-of-freedom structures and multi-degree-of-freedom structures connected with friction dampers wre studied and the parameter influence was analyzed.The results indicate that the value of friction damper parameter will affect the seismic suppressive effectiveness evidently and the seismic responses of sub-structures can be controlled availably to acquire notable seismic suppressive effectiveness when the system is designed becomingly.
In the paper,the seismic responses of adjacent-structure-system connected with friction damper were studied and the parameters influence was analyzed.Two numerical models,ideal bilinear model and Bouc-Wen hysteretic model of friction dampers are proposed for adjacent structure.It's found that the proposed two numerical models are accorded with each other perfectly.The maximal displacement and acceleration of top floor of the sub-structure,the total energy dissipation of system and the ratio of damper energy dissipation wre proposed as targets of control effect.Then the seismic responses of adjacent single-degree-of-freedom structures and multi-degree-of-freedom structures connected with friction dampers wre studied and the parameter influence was analyzed.The results indicate that the value of friction damper parameter will affect the seismic suppressive effectiveness evidently and the seismic responses of sub-structures can be controlled availably to acquire notable seismic suppressive effectiveness when the system is designed becomingly.
引文
[1]BERTERO V V.Observation of structural pounding[A].Proceedings of the International Conference on the Mexico Earthquake-1985[C].New York:ASCE,1987.264-278.
[2]KASAI K,MAISON B F.Observation of structural pounding damage from 1989 Loma prieta earthquake[A].Proceedings of the Canadi-an Conference on Earthquake Engineering Jun[C].[s.l.]:[s.n.],1991.12-14.
[3]付永辉,杨智春.非线性干摩擦阻尼器连接的相邻结构随机振动分析[J].科学技术与工程,2007,8(7):1 546-1 550.
[4]朱宏平,俞永敏,唐家祥.地震作用下主从结构的被动优化控制研究[J].应用力学学报,2000,17(2):63-69.
[5]朱宏平,杨紫健,唐家祥.利用连接装置控制两相邻结构的地震动响应[J].振动工程学报,2003,16(1):56-61.
[6]闫维明,陆赢祺,彭凌云.两结构高效阻尼控制体系非线性地震反应分析[J].土木工程学报,2003,36(5):58-63.
[7]连业达,张洵安,王朝霞.摩擦阻尼支承框架参数研究[J].土木工程学报,2008,41(1):24-27.
[8]翁大根,吕西林.消能减震结构设计参数研究与试验验证[J].地震工程与工程振动,2004,24(2):150-160.
[9]欧进萍,吴波,龙旭.结构被动耗能减震效果的参数影响[J].地震工程与工程振动,1998,18(1):60-70.
[10]赵大海,李宏男.非线性结构利用摩擦阻尼器振动控制的优化设计[J].振动与冲击,2007,26(10):35-40.
[11]黄海生,王柏生.基础隔震建筑非线性动力响应的时程计算方法[J].振动与冲击,2005,24(3):50-54.
[2]KASAI K,MAISON B F.Observation of structural pounding damage from 1989 Loma prieta earthquake[A].Proceedings of the Canadi-an Conference on Earthquake Engineering Jun[C].[s.l.]:[s.n.],1991.12-14.
[3]付永辉,杨智春.非线性干摩擦阻尼器连接的相邻结构随机振动分析[J].科学技术与工程,2007,8(7):1 546-1 550.
[4]朱宏平,俞永敏,唐家祥.地震作用下主从结构的被动优化控制研究[J].应用力学学报,2000,17(2):63-69.
[5]朱宏平,杨紫健,唐家祥.利用连接装置控制两相邻结构的地震动响应[J].振动工程学报,2003,16(1):56-61.
[6]闫维明,陆赢祺,彭凌云.两结构高效阻尼控制体系非线性地震反应分析[J].土木工程学报,2003,36(5):58-63.
[7]连业达,张洵安,王朝霞.摩擦阻尼支承框架参数研究[J].土木工程学报,2008,41(1):24-27.
[8]翁大根,吕西林.消能减震结构设计参数研究与试验验证[J].地震工程与工程振动,2004,24(2):150-160.
[9]欧进萍,吴波,龙旭.结构被动耗能减震效果的参数影响[J].地震工程与工程振动,1998,18(1):60-70.
[10]赵大海,李宏男.非线性结构利用摩擦阻尼器振动控制的优化设计[J].振动与冲击,2007,26(10):35-40.
[11]黄海生,王柏生.基础隔震建筑非线性动力响应的时程计算方法[J].振动与冲击,2005,24(3):50-54.
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