隔振支座对大跨度网壳的振动控制分析
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摘要
本文通过建立了橡胶隔振支座与设置隔振支座的网壳结构的力学模型,研究了隔震支座控制下,大跨度空间单层柱面网壳结构在地震作用下振动响应,结果表明:隔震支座对结构的振动可以起到良好的控制作用,但地震强度对隔震支座耗能能力影响较大,在最大水平行程内,地震强度越大,耗能能力越强;在不同地震波作用下,隔振网壳结构体系的振动控制效果有所不同,其中:EL Centro波作用的结构被动控制效果最佳。
Mechanical model of finite element of rubber isolation and reticulated shell is established,vibration response of single- layer cylindrical reticulated shell structure installed the rubber isolation bearing under earthquake is investigated by numerical method. The results show that isolation bearing can play a good control effect on vibration of the structure,however,seismic intensity can influence the energy dissipation capacity of isolation bearing,energy dissipation ability increases with the increase of the earthquake intensity in maximum range,under the effect of different seismic wave,the vibration control effect of the isolation structure is different; in addition,the vibration control effect of the isolation structure is the best under the seismic wave of EI Centro.
Mechanical model of finite element of rubber isolation and reticulated shell is established,vibration response of single- layer cylindrical reticulated shell structure installed the rubber isolation bearing under earthquake is investigated by numerical method. The results show that isolation bearing can play a good control effect on vibration of the structure,however,seismic intensity can influence the energy dissipation capacity of isolation bearing,energy dissipation ability increases with the increase of the earthquake intensity in maximum range,under the effect of different seismic wave,the vibration control effect of the isolation structure is different; in addition,the vibration control effect of the isolation structure is the best under the seismic wave of EI Centro.
引文
[1]沈聚敏,周锡元,高小旺,等.抗震工程学[M].北京:中国建筑工业出版社,2000.
[2]中国建筑科学研究院,JG 118-2000,建筑橡胶隔震支座[M].北京:中国建筑业出版社,2000.
[3]SOONG T T,DARGUSH G F.Passive energy dissipation systems in structural engineering[M].New York:John Wiley and Sons,1997.
[4]刘文光,周福霖,庄学真,等.铅芯夹层橡胶隔震垫基本力学性能研究[J].地震工程与工程振动,1999,19(1):93-99.
[5]苏经宇,曾德民.我国建筑结构隔震技术的研究和应用[J].地震工程与工程振动,2001,21(4):94-101.
[6]李慧,刘迪,杜永峰.附设耗能装置的高层基础隔震建筑抗震性能研究[J].土木工程学报,2010(Z1):276-281.
[7]徐赵东,李爱群,叶继红.大跨空间网壳结构减震控制的研究与发展[J].振动与冲击,2005,03:59-61.
[8]KOH C G,KELLY J M.A simple mehcnaieal model of elastomeric bearmgs used in the isolation[J].J.Mech.Sci..1988.30(12):933-943.
[9]FENG DEMIN,MIYAMA TAKAFUMI.A new analytical model for the lead rubber bearing[A].12WCEE[C].New Zealand,2000.
[10]李秋英,刘丽丽,董宏伟.基础隔震异形柱框架结构的参数优化[J].河北工程大学学报:自然科学版,2010,27(3):5-8.
[2]中国建筑科学研究院,JG 118-2000,建筑橡胶隔震支座[M].北京:中国建筑业出版社,2000.
[3]SOONG T T,DARGUSH G F.Passive energy dissipation systems in structural engineering[M].New York:John Wiley and Sons,1997.
[4]刘文光,周福霖,庄学真,等.铅芯夹层橡胶隔震垫基本力学性能研究[J].地震工程与工程振动,1999,19(1):93-99.
[5]苏经宇,曾德民.我国建筑结构隔震技术的研究和应用[J].地震工程与工程振动,2001,21(4):94-101.
[6]李慧,刘迪,杜永峰.附设耗能装置的高层基础隔震建筑抗震性能研究[J].土木工程学报,2010(Z1):276-281.
[7]徐赵东,李爱群,叶继红.大跨空间网壳结构减震控制的研究与发展[J].振动与冲击,2005,03:59-61.
[8]KOH C G,KELLY J M.A simple mehcnaieal model of elastomeric bearmgs used in the isolation[J].J.Mech.Sci..1988.30(12):933-943.
[9]FENG DEMIN,MIYAMA TAKAFUMI.A new analytical model for the lead rubber bearing[A].12WCEE[C].New Zealand,2000.
[10]李秋英,刘丽丽,董宏伟.基础隔震异形柱框架结构的参数优化[J].河北工程大学学报:自然科学版,2010,27(3):5-8.
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