考虑桩-土-结构相互作用的结构振动控制研究
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摘要
在Penzien模型的基础上,建立了考虑桩-土-结构相互作用(PSSI)的计算模型,推导了其主动控制方程,分析了PSSI对结构控制的影响,以及土与结构各种主要参数对控制效果的影响。分析结果表明:考虑PSSI,结构地震响应有所加大,控制效果有所降低,最大控制力增大;在一定范围内,土的剪切波速、桩的截面惯性矩以及上部结构的基本周期对结构的主动控制有着显著的影响。
Based on the Penzien model,a calculation model of a structure in consideration of pile-soil-structure interaction (PSSI) was established and the vibration control equations of the structural motion were derived.PSSI's effects on structural vibration control were analyzed.The effects of every parameter of soil and structures on structural vibration control were studied.The results showed that considering PSSI,the structural earthquake response is increased,the control-effect is reduced,the control force is increased; the equivalent shear wave velocity of soil,the rotary inertia of pile and the natural period of upper structure have significant effects on structural vibration control to some extent.
Based on the Penzien model,a calculation model of a structure in consideration of pile-soil-structure interaction (PSSI) was established and the vibration control equations of the structural motion were derived.PSSI's effects on structural vibration control were analyzed.The effects of every parameter of soil and structures on structural vibration control were studied.The results showed that considering PSSI,the structural earthquake response is increased,the control-effect is reduced,the control force is increased; the equivalent shear wave velocity of soil,the rotary inertia of pile and the natural period of upper structure have significant effects on structural vibration control to some extent.
引文
[1]陈国兴.岩土地震工程学[M].北京:科学出版社,2007.
[2]李献忠,张媛,王泽明.土-结构相互作用对结构控制的影响[J].地震工程与工程振动,2005,25(3):138-144.
[3]邹立华,赵人达,赵建昌.桩-土-隔震结构相互作用地震响应分析[J].岩土工程学报,2004,26(6):782-786.
[4]杨宏,邹立华,等.土-结构相互作用对结构主动控制的影响研究[J].振动与冲击,2009,28(3):99-103.
[5]Zhang G,Pan D Z,Chen J X et al.Analysis of pile-soil inter-action by computer simulation[J].Experimental Mechanics in Nano and Biotechnology,2006,326-328,1531-1534.
[6]Maki T,Maekawa K,Mutsuyoshi H.RC pile-soil interaction a-nalysis using a3D-finite element method with fibre theory-based beam elements[J].earthquake engineering&structur-al dynamics,2006,35(13):1587-1607.
[7]Wang HD,Shang S P.Computational research on vertical dy-namic response of single-pile considering pile-soil interaction during passage of Rayleigh waves[J].Advances in Structural Engineering:Theory and Applications Vols1and2,2006,2197-2201.
[8]孙利民,张晨南,等.桥梁桩土相互作用的集中质量模型及参数确定[J].同济大学学报,2002,30(4):409-415.
[9]李永梅,孙国富,等.桩-土-杆系结构的动力相互作用[J].建筑结构学报,2002,23(1):75-81.
[10]欧进萍.结构振动控制———主动、半主动和智能控制[M].北京:科学出版社,2003.
[2]李献忠,张媛,王泽明.土-结构相互作用对结构控制的影响[J].地震工程与工程振动,2005,25(3):138-144.
[3]邹立华,赵人达,赵建昌.桩-土-隔震结构相互作用地震响应分析[J].岩土工程学报,2004,26(6):782-786.
[4]杨宏,邹立华,等.土-结构相互作用对结构主动控制的影响研究[J].振动与冲击,2009,28(3):99-103.
[5]Zhang G,Pan D Z,Chen J X et al.Analysis of pile-soil inter-action by computer simulation[J].Experimental Mechanics in Nano and Biotechnology,2006,326-328,1531-1534.
[6]Maki T,Maekawa K,Mutsuyoshi H.RC pile-soil interaction a-nalysis using a3D-finite element method with fibre theory-based beam elements[J].earthquake engineering&structur-al dynamics,2006,35(13):1587-1607.
[7]Wang HD,Shang S P.Computational research on vertical dy-namic response of single-pile considering pile-soil interaction during passage of Rayleigh waves[J].Advances in Structural Engineering:Theory and Applications Vols1and2,2006,2197-2201.
[8]孙利民,张晨南,等.桥梁桩土相互作用的集中质量模型及参数确定[J].同济大学学报,2002,30(4):409-415.
[9]李永梅,孙国富,等.桩-土-杆系结构的动力相互作用[J].建筑结构学报,2002,23(1):75-81.
[10]欧进萍.结构振动控制———主动、半主动和智能控制[M].北京:科学出版社,2003.
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