某混合振动控制装置的性能试验研究
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摘要
为了研究高阻尼橡胶串联屈曲约束支撑的混合振动控制装置性能,本文采用1∶2的缩尺模型,对该模型行了试验研究。基于试验结果,将混合振动控制装置的性能分为两个阶段,即橡胶阻尼工作阶段及约束支撑工作阶段,二者通过封锁结构进行转化。绘制了两个阶段的阻尼橡胶与约束支撑及混合振动控制装置的力-位移关系曲线。分析了各部件的工作性能。得出了该混合振动控制装置具有较好耗能性能,可以在实际工程中加以推广。
In this paper,the experiments of a hybrid passive control device(HPCD) consisting of a high damping rubber damper in series in a bucking restrained brace are carried out adopting 1 ∶ 2 scale model to study working properties of HPCD.Based on experiment,HPCD is divided into a two-phase system property.The initial phase provides damping through a high damping rubber damper.The second phase is initiated by a locking mechanism in the damper.Once engaged,the mechanism transfers sufficient force to a bucking restrained brace.The results show that HPCD has better seismic properties of all components and can be used in practical engineering on the basis of force-displacement curve of damper and HPCD in two phases.
In this paper,the experiments of a hybrid passive control device(HPCD) consisting of a high damping rubber damper in series in a bucking restrained brace are carried out adopting 1 ∶ 2 scale model to study working properties of HPCD.Based on experiment,HPCD is divided into a two-phase system property.The initial phase provides damping through a high damping rubber damper.The second phase is initiated by a locking mechanism in the damper.Once engaged,the mechanism transfers sufficient force to a bucking restrained brace.The results show that HPCD has better seismic properties of all components and can be used in practical engineering on the basis of force-displacement curve of damper and HPCD in two phases.
引文
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[2]周云,徐赵东,赵宏铁.粘弹性阻尼结构的性能、分析方法及工程应用[J].地震工程与工程振动,1998,18(3):96~107Zhou Yun,Xu Zhao-dong,Zhao Hong-tie.Study on Behavior,Analytical Methods and Application of Viscoelastic Structure[J].Journal of Earthquake Engineering and Engineering Vibration,1998,18(3):96 ~107(in Chinese)
[3]赵俊贤,吴斌.防屈曲支撑的工作机理及稳定性设计方法[J].地震工程与工程振动,2009,29(3):131~139 Zhao Jun-xian,Wu Bin.Working Mechanism and Stability Design Methods of Buckling-restratined Braces[J].Journal of Earthquake Engineering and Engineering Vibration,2009,29(3):131~139(in Chinese)
[4]Zhang X Z,Cheng F Y.Hybrid Actuator-damperbracing Control System with Intelligent Strategy and Soilstructure Interaction[J].Engineering Structures,2006,28(14):20~22
[5]阎维明,谭平,周福霖.多结构混合控制体系研究[J].地震工程与工程振动,1998,9(3):108~115Yan Wei-ming,Tan Ping,Zhou Fu-lin.Research on Multi-structural Hybrid Control System[J].Journal of Earthquake Engineering and Engineering Vibration,1998,9(3):108~115(in Chinese)
[6]魏文晖,瞿伟廉.粘弹性-摩擦阻尼器在底部框架砌体结构抗震加固中的控制应用[J].地震工程与工程振动,2002,22(2):154~157Wei Wen-hui,Qu Wei-lian.Using VFD for Seismically Retrofitting of Hybrid Masonry-concrete Structures[J].Journal of Earthquake Engineering and Engineering Vibration,2002,22(2):154~157(in Chinese)
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