探讨大坝动力分析时考虑行波效应的必要性
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摘要
现行研究地震行波效应的理论公式是假设考虑行波效应后不同点间的相位差与两点在行波前进方向的投影距离成正比,与行波波速成反比,其合理性需要实际地震监测资料的证实。本文结合Mauvoisin拱坝的实际地震资料,分析大坝动力分析时考虑行波效应的必要性。
The theoretical formula currently used for studying travel wave effects of earthquake is based on the following assumption. After the travel wave effect is taken into consideration, the phase difference between different points is proportional to the projection distance of the two points along the travel wave forwarding direction, and is inversely proportional to the travel wave velocity. Its rationality requires to be verified by monitored seismic data. In this paper studying the measured seismic data of Mauvoisin arch dam, is to discuss the necessity of considering traveling wave effects when the dam dynamic analysis is taken into consideration.
The theoretical formula currently used for studying travel wave effects of earthquake is based on the following assumption. After the travel wave effect is taken into consideration, the phase difference between different points is proportional to the projection distance of the two points along the travel wave forwarding direction, and is inversely proportional to the travel wave velocity. Its rationality requires to be verified by monitored seismic data. In this paper studying the measured seismic data of Mauvoisin arch dam, is to discuss the necessity of considering traveling wave effects when the dam dynamic analysis is taken into consideration.
引文
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[2]A.Der Kiureghian,A coherency model for spatially varying ground motion[J].Earthquake Engineering and Structural Dynamics,1996,25(1):99-111.
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[8]地基边界对五嘎冲拱坝地震动力响应的影响[J].武汉大学学报(工学版),2011,44(05):554-559.
[9]考虑行波效应的拱坝地震动力响应分析[J].武汉大学学报(工学版),2013,46(06):720-726.
[10]Proulx J,Darbre GR,Kamileris N.Analytical and experim ental investigation of damping in arch dams based on Rec orded earthquake[A].Proceedings 13th World Conference o n Earthquake Engineering[C],Paper No.68,Vancouver,Canad a,2004.
[11]Chopra AK,Wang J.Earthquake response of arch dams to spatially-varying ground motion[J].Earthquake Engng Str uct.Dyn.,2010,39:887.
[12]J.P Wolf,P.Obernhuber.Effects of horizontally travelling w aves in soil-structure interaction[J].Nuclear Engineering an d Design,1980,57:221-244.
[13]A.Der Kiureghian.A coherency model for spatially varyin g ground motions[J].Earthquake Engineering and Structural Dynamics,1996,25:99-111.
[14]George M,Dimitri P,John P,Khaled M.Simplified modeling of bridge response on soft soil to nonuniform seismic excitation[J].Journal of Bridge Engineering,ASCE,2001,6(6):587-597.
[15]J.Proulx,G.R.Darbre.Earthquake response of large arch da ms observational evidence and numerical modelling[A].Pro ceedings,14th World Conference on Earthquake Engineering[C].Paper No.120,Beijing,China,2008.
[16]G.R.Darbre,C.A.M.de Smet and C.Kraemer.Natural freq uencies measured from ambient vibration response of the a rch dam of Mauvoisin[J].Earthquake eng.and structural d ynamics,2000,29:577-586.
[2]A.Der Kiureghian,A coherency model for spatially varying ground motion[J].Earthquake Engineering and Structural Dynamics,1996,25(1):99-111.
[3]George Mylonakis.etal.Simplified modeling of bridge response on soft soil to nonuniform seismic excitation[J].Journal of Bridge Engineering,2001,6(6):587-597.
[4]M.Dibaj and J.Penzien,Response of earth dams to traveling seismic waves[J].J.Soil mech.found.div.,ASCE,1969,95(2):541-560.
[5]驹田广野,林正夫,北原义浩.进行性入力波を考虑レたロシクっィルダムの三次元震动应答解析[J].土木学会论文报告集,1977(261):77-92.
[6]楼梦麟,林皋.重力坝地震行波反应分析[J].水利学报,1984,15(5):26-32.
[7]陈厚群,侯顺载.混凝土坝自由场行进波分析[J].水利学报,1988,19(09):59-67.
[8]地基边界对五嘎冲拱坝地震动力响应的影响[J].武汉大学学报(工学版),2011,44(05):554-559.
[9]考虑行波效应的拱坝地震动力响应分析[J].武汉大学学报(工学版),2013,46(06):720-726.
[10]Proulx J,Darbre GR,Kamileris N.Analytical and experim ental investigation of damping in arch dams based on Rec orded earthquake[A].Proceedings 13th World Conference o n Earthquake Engineering[C],Paper No.68,Vancouver,Canad a,2004.
[11]Chopra AK,Wang J.Earthquake response of arch dams to spatially-varying ground motion[J].Earthquake Engng Str uct.Dyn.,2010,39:887.
[12]J.P Wolf,P.Obernhuber.Effects of horizontally travelling w aves in soil-structure interaction[J].Nuclear Engineering an d Design,1980,57:221-244.
[13]A.Der Kiureghian.A coherency model for spatially varyin g ground motions[J].Earthquake Engineering and Structural Dynamics,1996,25:99-111.
[14]George M,Dimitri P,John P,Khaled M.Simplified modeling of bridge response on soft soil to nonuniform seismic excitation[J].Journal of Bridge Engineering,ASCE,2001,6(6):587-597.
[15]J.Proulx,G.R.Darbre.Earthquake response of large arch da ms observational evidence and numerical modelling[A].Pro ceedings,14th World Conference on Earthquake Engineering[C].Paper No.120,Beijing,China,2008.
[16]G.R.Darbre,C.A.M.de Smet and C.Kraemer.Natural freq uencies measured from ambient vibration response of the a rch dam of Mauvoisin[J].Earthquake eng.and structural d ynamics,2000,29:577-586.
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