利用Matlab和锤击法的线性结构阻尼试验
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摘要
首先介绍了线性粘滞阻尼的理论模型,以及使用锤击法进行模型试验推断结构阻尼的装置构成、试验过程和粘滞阻尼推算的一般方法,论述了利用Matlab工具软件进行阻尼推算的主要命令和精度控制原则.简述了粘滞阻尼与滞变阻尼模型之间的联系和对应关系,作为结构振动控制元件在强震下阻尼推算的理论基础.
A method for evaluating the equivalent viscous damping of linear structure using Matlab toolbox based on impulse hammer test was presented in this paper.A general theoretical model of linear viscous damping was briefly introduced first,and the experimental setup,test procedure and calculation of equivalent viscous damping ratio of linear structures based on a dynamic impulse test were described as well as the accuracy consideration.The correspondence between viscous damping and hysteretic damping models was explained,which lays a basis for evaluating damping ratio of structural control element under major earthquake.
A method for evaluating the equivalent viscous damping of linear structure using Matlab toolbox based on impulse hammer test was presented in this paper.A general theoretical model of linear viscous damping was briefly introduced first,and the experimental setup,test procedure and calculation of equivalent viscous damping ratio of linear structures based on a dynamic impulse test were described as well as the accuracy consideration.The correspondence between viscous damping and hysteretic damping models was explained,which lays a basis for evaluating damping ratio of structural control element under major earthquake.
引文
[1]NASHIF A D,JONES D I G,HENDERSON J P.Vibrationdamping[M].New York:John Wiley,1985.
[2]ROGERS L.The role of damping in vibration and noise control[M].New York:ASME,1987.
[3]UNGAR E E.Structural damping[A].Beranek,et al.Noiseand Vibration Control Engineering:Principles and Applications[C].New York:John Wiley,1992.451-481.
[4]杨志勇,李桂青,瞿伟廉.结构阻尼的发展及其研究概况[J].武汉工业大学学报,2000,22(3):38-41.
[5]李田.结构时程动力分析中的阻尼取值研究[J].土木工程学报,1997,30(3):68-73.
[6]黄宗明,白绍良,赖明.结构地震反应时程分析中的阻尼研究[J].土木工程学报,1998,31(2):75-79.
[7]周锡元,阎维明,杨润林.建筑结构的隔震、减振和振动控制[J].建筑结构学报,2002,23(2):2-11.
[8]杜永峰,李慧,SPENCER Jr B F,等.隔震结构动力时程响应工程算法的精度对比[J.甘肃工业大学学报,2003,29(3):103-106.
[9]李慧,邓学晶,杜永峰,等.寒区叠层橡胶隔震支座拟静力试验研究[J].低温建筑技术,2003,(4):33-35.
[10]DU Y F,LI H,HAN J P,et al.Experimental study on behav-ior of laminated rubber bearing under low temperature[A].ITOH Y,AOKI T.First International Conference on Ad-vances in Experimental Structural Engineering[C].Nagoya:Ichiryusha publisher,2005.213-218.
[11]DU Y F,LI H,SPENCER Jr B F.Effect of non-proportionaldamping on seismic isolation[J].Journal of Structural Con-trol,2002,9(3):205-236.
[12]AKIYAMA H.Earthquake-resistant limit-state design forbuildings[M].Tokyo:University of Tokyo Press,1985.
[2]ROGERS L.The role of damping in vibration and noise control[M].New York:ASME,1987.
[3]UNGAR E E.Structural damping[A].Beranek,et al.Noiseand Vibration Control Engineering:Principles and Applications[C].New York:John Wiley,1992.451-481.
[4]杨志勇,李桂青,瞿伟廉.结构阻尼的发展及其研究概况[J].武汉工业大学学报,2000,22(3):38-41.
[5]李田.结构时程动力分析中的阻尼取值研究[J].土木工程学报,1997,30(3):68-73.
[6]黄宗明,白绍良,赖明.结构地震反应时程分析中的阻尼研究[J].土木工程学报,1998,31(2):75-79.
[7]周锡元,阎维明,杨润林.建筑结构的隔震、减振和振动控制[J].建筑结构学报,2002,23(2):2-11.
[8]杜永峰,李慧,SPENCER Jr B F,等.隔震结构动力时程响应工程算法的精度对比[J.甘肃工业大学学报,2003,29(3):103-106.
[9]李慧,邓学晶,杜永峰,等.寒区叠层橡胶隔震支座拟静力试验研究[J].低温建筑技术,2003,(4):33-35.
[10]DU Y F,LI H,HAN J P,et al.Experimental study on behav-ior of laminated rubber bearing under low temperature[A].ITOH Y,AOKI T.First International Conference on Ad-vances in Experimental Structural Engineering[C].Nagoya:Ichiryusha publisher,2005.213-218.
[11]DU Y F,LI H,SPENCER Jr B F.Effect of non-proportionaldamping on seismic isolation[J].Journal of Structural Con-trol,2002,9(3):205-236.
[12]AKIYAMA H.Earthquake-resistant limit-state design forbuildings[M].Tokyo:University of Tokyo Press,1985.
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