建筑物滚动摩擦隔震理论
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摘要
提出了建筑物滚动摩擦隔震理论。根据动能定理与多体动力学理论,导出了复位弹簧-辊轴摩擦摆隔震系统的强非线性多自由度运动方程,并根据龙格-库塔方法给出了数值求解过程.计算了两个实例工程在地震作用下的动力反应特性.分析了滚动摩擦隔震系统的隔震性能,辊轴式摩擦摆的结构较FPS滑道式摩擦摆有了改善.它消除了FPS型摩擦摆中滑道摩擦力的冲击作用,也不必在滑道系统中设置运动转向装置.在合适的复位弹簧系数及滚动摩擦系数条件下,辊轴式摩擦摆隔震系统具有较好复位能力与耗能特性,隔震效率可达80%以上,的而且在竖向也可能会有较好的隔震效果。
The theory about earthquake isolating theory with rolling friction has been proposed in this paper.The non-linear differential equation is derived according to the theorem of kinematic energy and the theory of multiply body dynamics.The numerical evaluation procedure has been presented with Longe-Kuta method.The seismic property and dynamic response on an engineering example is evaluated.The fabric of this system brings about a rather sophisticated improvement to the FPS system because it will not exert the impulsive action to the upper structure.It will either not need the steering device which is essential in FPS.An ideal seismic isolating effect might be attained in the vertical direction.
The theory about earthquake isolating theory with rolling friction has been proposed in this paper.The non-linear differential equation is derived according to the theorem of kinematic energy and the theory of multiply body dynamics.The numerical evaluation procedure has been presented with Longe-Kuta method.The seismic property and dynamic response on an engineering example is evaluated.The fabric of this system brings about a rather sophisticated improvement to the FPS system because it will not exert the impulsive action to the upper structure.It will either not need the steering device which is essential in FPS.An ideal seismic isolating effect might be attained in the vertical direction.
引文
[1]唐家祥,刘再华.建筑结构基础隔震[M].武汉:华中理工大学出版社,1993.
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[3]徐忠根,谢军龙,周福霖.多层建筑隔震改造设计[J].地震工程和工程振动,2001,21(3):132~139.
[4]周锡元,阎维明,杨润林.建筑结构的震动、减振和振动控制,建筑结构学报[J].2002,23(2):2~11.
[5]武田寿一著,纪晓惠译.建筑物隔震防震与控震[M].北京:中国建筑工业出版社,1997.
[6]张玉敏,苏幼坡,梁军,等.碟型弹簧竖向减震装置的研究[J].哈尔滨工业大学学报,2005,37(12):1678~1680.
[7]Jangid R S,Datta TK.Seimic behaviour of base isolated buildings:a state of the art rview[J].Structures and buildings,1995,110(2):186~202.
[8]李大望,周锡元,王东炜.摩擦摆系统振动性态的进一步分析[J].振动工程学报,2001,14(3):330~333.
[9]Mokha A S,Amin N Constantinou M C,Zayas V.Sesmic isolation retrofit of large historic buildings[J].Journal of structure engineering,ASCE,1996,122(3):298~308.
[10]王兴国,张松,苏幼坡.单层FPS结构隔振结构的平移、扭转耦合性能分析[J].地震工程与工程震动,2006,26(3):206~205.
[11]王刚,魏心磊,赵彤.建筑物隔震技术在日本的研究发展和工程应用[J].世界地震工程,2001,17(4):7-12.
[12]何永超,邓长根,曾康康.日本高层建筑基础隔震技术的开发和应用[J].工业建筑,2002,32(5):29~31.
[2]周锡元,韩淼,李大望,曾德民.并联合串联隔震体系地震反应的某些特征[J].工程抗震,1995,65(4):1~5.
[3]徐忠根,谢军龙,周福霖.多层建筑隔震改造设计[J].地震工程和工程振动,2001,21(3):132~139.
[4]周锡元,阎维明,杨润林.建筑结构的震动、减振和振动控制,建筑结构学报[J].2002,23(2):2~11.
[5]武田寿一著,纪晓惠译.建筑物隔震防震与控震[M].北京:中国建筑工业出版社,1997.
[6]张玉敏,苏幼坡,梁军,等.碟型弹簧竖向减震装置的研究[J].哈尔滨工业大学学报,2005,37(12):1678~1680.
[7]Jangid R S,Datta TK.Seimic behaviour of base isolated buildings:a state of the art rview[J].Structures and buildings,1995,110(2):186~202.
[8]李大望,周锡元,王东炜.摩擦摆系统振动性态的进一步分析[J].振动工程学报,2001,14(3):330~333.
[9]Mokha A S,Amin N Constantinou M C,Zayas V.Sesmic isolation retrofit of large historic buildings[J].Journal of structure engineering,ASCE,1996,122(3):298~308.
[10]王兴国,张松,苏幼坡.单层FPS结构隔振结构的平移、扭转耦合性能分析[J].地震工程与工程震动,2006,26(3):206~205.
[11]王刚,魏心磊,赵彤.建筑物隔震技术在日本的研究发展和工程应用[J].世界地震工程,2001,17(4):7-12.
[12]何永超,邓长根,曾康康.日本高层建筑基础隔震技术的开发和应用[J].工业建筑,2002,32(5):29~31.
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