新型粘滞-弹性阻尼器的力学性能试验与理论研究
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摘要
研制开发了一种新型粘滞-弹性阻尼器,对DS1~DS8八种不同型号的粘滞-弹性阻尼器进行了低周循环加载试验和抗低周疲劳性能试验研究,研究了新型粘滞-弹性阻尼器的耗能性能、参数相关性能和抗低周疲劳性能,基于Kelvin模型建立了粘滞-弹性阻尼器的恢复力模型,并对该模型进行了验证分析。研究结果表明:粘滞-弹性阻尼器具有良好的耗能性能和抗低周疲劳性能,工作性能稳定、密封性好;基于Kelvin模型建立的粘滞-弹性阻尼器的恢复力模型能够很好地反映阻尼器的实际受力情况,理论与试验滞回曲线吻合性良好;阻尼器能够同时附加刚度和阻尼,并可兼作限位保护装置,在动力或静力荷载作用下均能发挥作用。
A new viscous-elastic damper was invented in this paper.Experiments on the hysteretic property and low-cycle fatigue property of the viscous-elastic dampers with eight types(DS1~DS8) were performed.Based on the experimental data,mechanical properties,such as energy dissipation performance,parameter related performance and fatigue performance,were investigated in detail.A restoring force model of the viscous-elastic damper was proposed according to the Kelvin model and the reliability of the restoring force model was verified by comparative study between experiment and theory results.Results show that the invented viscous-elastic dampers have a good energy dissipation performance and a low-cycle fatigue performance.And the dampers also have a stable work performance and excellent tightness.The restoring force model based on Kelvin model can well reflect the working condition of the new viscous-elastic dampers and a good agreement on hysteretic curves between the experiment and theory can be found.The viscous-elastic dampers can provide damping and stiffness for structures to resist actions of external excitations and can be used as a displacement-limited protective device.
A new viscous-elastic damper was invented in this paper.Experiments on the hysteretic property and low-cycle fatigue property of the viscous-elastic dampers with eight types(DS1~DS8) were performed.Based on the experimental data,mechanical properties,such as energy dissipation performance,parameter related performance and fatigue performance,were investigated in detail.A restoring force model of the viscous-elastic damper was proposed according to the Kelvin model and the reliability of the restoring force model was verified by comparative study between experiment and theory results.Results show that the invented viscous-elastic dampers have a good energy dissipation performance and a low-cycle fatigue performance.And the dampers also have a stable work performance and excellent tightness.The restoring force model based on Kelvin model can well reflect the working condition of the new viscous-elastic dampers and a good agreement on hysteretic curves between the experiment and theory can be found.The viscous-elastic dampers can provide damping and stiffness for structures to resist actions of external excitations and can be used as a displacement-limited protective device.
引文
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[13]黄镇,李爱群.新型黏滞阻尼器原理与试验研究[J].土木工程学报,2009,42(6):61―65.Huang Zhen,Li Aiqun.Experimental study on a newtype of viscous damoper[J].China Civil EngineeringJournal,2009,42(6):61―65.(in Chinese)
[14]陈永祁.工程结构用液体黏滞阻尼器的结构构造和速度指数[J].钢结构,2008,23(9):48―52.Chen Yongqi.Construction and velocity exponents offluid viscous damper for structural engineering[J].SteelConstruction,2008,23(9):48―52.(in Chinese)
[15]陈永祁.工程结构用液体黏滞阻尼器的漏油原因分析[J].钢结构,2008,23(9):53―58.Chen Yongqi.Leaking analysis of fluid viscous damperfor engineering structure[J].Steel Construction,2008,23(9):53―58.(in Chinese)
[16]GB50011-2010,建筑抗震设计规范[S].北京:中国建筑工业出版社,2010.GB 50011-2010,Code for seismic design of buildings[S].Beijing:China Architecture&Building Press,2010.(in Chinese)
[2]汪大洋,周云,王绍合.耗能减振层对某超高层结构的减振控制研究[J].振动与冲击,2011,30(2):85―92.Wang Dayang,Zhou Yun,Wang Shaohe.Vibrationreduction for a super-high structure with energydissipation story[J].Journal of Vibration and Shock,2011,30(2):85―92.(in Chinese)
[3]赵广鹏,娄宇,李培彬,等.粘滞阻尼器在北京银泰中心结构风振控制中的应用[J].建筑结构,2007,37(11):8―10.Zhao Guangpeng,Lou Yu,Li Peibin,et al.Using viscousdampers to control wind-induced vibration for steeltower of Beijing Yintai Center[J].Building Structure,2007,37(11):8―10.(in Chinese)
[4]Mahmoodi P.Structural dampers[J].ASCE Journal ofthe Structural Division,1969,95(8):1661―1672.
[5]Douglas P Taylor,Michael C Constantinou.Fluiddampers for applications of aseismic energy dissipationand aseismic isolation[OL].http://www.taylordevices.com/tayd.htm.
[6]Mahmoodi P,Robertson L E.Yontar M,Moy C,Feld I.Performance of viscoelastic dampers in world tradecenter towers[C].Dynamics of Structures,Proceedingsof the Sessions at Structures Congress.Orlando,FL,1987:17―20.
[7]周云.粘滞阻尼减震结构设计[M].武汉:武汉理工大学出版社,2006:8―15.Zhou Yun,Structural design of buildings with viscousdamopers[M].Wuhan:Wuhan University of TechnilogyPress,2006:8―15.(in Chinese)
[8]Taylor D P,Constantinou M C.Test methodology andprocedures for fluid viscous dampers used in structuresto dissipate seismic energy[R].Chicago:Taylor Devices,Inc.,April 28,1994.
[9]Constantinou M C,Symans M D.Experimental andanalytical investigation of seismic response of structureswith supplemental fluid viscous dampers(NCEER-92-0032)[R].New York:State University of New Yorkat Buffalo,1992.
[10]Makris N,Dargush G F,Constantinou M C.Dynamicanalysis of generalized viscoelastic fluids[J].Journal ofEngineering Mechanics,1993,119(8):1663―1679.
[11]欧进萍,丁建华.油缸间隙式粘滞阻尼器理论与性能试验[J].地震工程与工程振动,1999,19(4):82―88.Ou Jinping,Ding Jianhua.Theory and performanceexperiment of viscous damper of clearance hydrocylinder[J].Earthquake Engineering and Engineering Vibration,1999,19(4):82―88.(in Chinese)
[12]欧谨,刘伟庆,章振涛.一种新型粘滞阻尼材料的试验研究[J].地震工程与工程振动,2005,25(1):108―112.Ou Jin,Liu Weiqing,Zhang Zhentao.Experimentalresearch on a new type of viscous damping material[J].Engineering and Engineering Vibration,2005,25(1):108―112.(in Chinese)
[13]黄镇,李爱群.新型黏滞阻尼器原理与试验研究[J].土木工程学报,2009,42(6):61―65.Huang Zhen,Li Aiqun.Experimental study on a newtype of viscous damoper[J].China Civil EngineeringJournal,2009,42(6):61―65.(in Chinese)
[14]陈永祁.工程结构用液体黏滞阻尼器的结构构造和速度指数[J].钢结构,2008,23(9):48―52.Chen Yongqi.Construction and velocity exponents offluid viscous damper for structural engineering[J].SteelConstruction,2008,23(9):48―52.(in Chinese)
[15]陈永祁.工程结构用液体黏滞阻尼器的漏油原因分析[J].钢结构,2008,23(9):53―58.Chen Yongqi.Leaking analysis of fluid viscous damperfor engineering structure[J].Steel Construction,2008,23(9):53―58.(in Chinese)
[16]GB50011-2010,建筑抗震设计规范[S].北京:中国建筑工业出版社,2010.GB 50011-2010,Code for seismic design of buildings[S].Beijing:China Architecture&Building Press,2010.(in Chinese)
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