大跨度桥梁非一致激励下的抗震数值分析评述
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摘要
在地震灾害事故频发时期,大跨度桥梁作为救灾重要的交通线其抗震性能尤为重要.由于在大跨度桥梁结构尺寸范围内受到许多因素的影响,地震波沿空间变化,大跨度桥梁不适用于一般建筑结构抗震性能计算的基于一致激励的假设.不相干效应、衰减效应、场地效应和行波效应均影响地震波的空间变化.本文对国内外考虑地震波空间效应的大跨度桥梁动力响应的数值分析方法进行了介绍和比较.
When earthquakes frequently take place,the seismic performance of the long-span bridge plays an important role,acting as the transportation lifeline.The method for seismic analysis is based on a uniform excitation assumption which works well for normal buildings but is not quite accurate for long-span bridges,because the spatial variation of seismic wave is affected by many factors within the structural dimension.Incoherence effects,attenuation effects,site effects and the wave propagation effects of seismic waves all affect the spatial variation.In this paper numerical analysis methods of seismic dynamic response of long-span bridges are introduced and compared.
When earthquakes frequently take place,the seismic performance of the long-span bridge plays an important role,acting as the transportation lifeline.The method for seismic analysis is based on a uniform excitation assumption which works well for normal buildings but is not quite accurate for long-span bridges,because the spatial variation of seismic wave is affected by many factors within the structural dimension.Incoherence effects,attenuation effects,site effects and the wave propagation effects of seismic waves all affect the spatial variation.In this paper numerical analysis methods of seismic dynamic response of long-span bridges are introduced and compared.
引文
[1]史志利,李忠献.随机地震动场多点激励下大跨度桥梁地震反应分析方法[J].地震工程与工程振动,2003,23(4):124-130.
[2]Yang,C.Y..Seismic analysis of long span bridges including the effects of spatial varaation of seismic waes on bridges[D].Hong Kong:Hong Kong University of Science and Technology,2007.
[3]Abdel-Ghaffar,A.M.,Rubin,L.I..Suspension bridge responses to multiple-support excitations[J].Journal of the Engineering Mechan-ics Dibision,ASCE,1982,108(2):419-435.
[4]Harichandran,R.S.,Hawwari,A.,Sweidan,B.N..Response of long-span briges to spatially varying ground motion[J].ASCE Journal ofStructural Engineering,1996,122(5):476-484.
[5]Allam,S.M.,Datta,T.K..Seismic behavior of cable-stayed bridge under multi-component random ground motion[J].Engineering Struc-tures,1999,21:62-74.
[6]Allam,S.M.,Datta,T.K..Seismic response of a cable-stayed bridge deck under multi-component non-stationary random ground motion[J].Earthquake Engineering and Structural Dynamics,2004,33:375-393.
[7]Wang,J.J.,Hu,S.D.,Wei,X.Effects of engineering gelolgical condition on response of suspension bridges[J].Soil Dynamics andEarthquake Engineering,1999,18:297-304.
[8]Fan,L.C.,Wang,J.J.,Chen,W..Response characteristic od long-span cable-stayed bridges under non-uniform seismic action[J].Chi-nese Journal of Computational Mechanics,2001,18(3):358-363.
[9]Zhang,Y.H.,Lin,J,H..Seismic response analysis of the Hong Kong Tsingma Bridge[J].Chinese Journal of Applied Mechanics,2002,19(3):25-30.
[10]Lin,J.H.,Zhang,Y.H.,Li,Q.S.,et al.Seismic spatial effects for long-span bridges using the pseudo excitation method[J].Engi-neering Structures,2004,26(9):1207-1216.
[11]Kiureghian,A.D.,Neuenhofer,A..Response spetrum method for multi-support seismic excitations[J].Earthquake Engineering andStructural Dynamics,1992,21:713-740.
[12]Berrah,M.,Kausel,E..Response spectrum analysis of structures subjected to spatially varying motions[J].Earthquake Engineeringand Structural Dynamics,1992,21:461-470.
[13]Berrah,M.,Kausel,E..A modal combination rule for spatially varying seismic motions[J].Earthquake Engineering and StructuralDynamics,1993,22:791-800.
[14]Allam,S.M.,Datta,T.K..Analysis of cable-stayed bridge under multi-component random ground motion by response spectrummethod[J].Engineering Structures,2000,22:1367-1377.
[15]Soyluk,K..Comparison of random vibration methods for multi-support seismic excitation analysis of long-span bridges[J].Engineer-ing Structures,2004,26:1573-1583.
[16]范立础,胡世德,叶爱军.大跨度桥梁抗震设计[M].北京:人民交通出版社,2001.
[17]Leger,P.,Ide,I.M.,Paultre,P..Multiple-support seismic analysis of large structures[J].Computers﹠Structures,1990,36(6):1153-1158.
[18]Nazmy,A.S..Nonlinear Earthquake-response Analysis of Cable-stayed Bridge Subjected to Multiple-support Excitations[D].Prince-ton University,1987.
[19]Nazmy,A.S.,Abdel-Ghaffar,A.M..Effects of ground motion spatial variability on the response of cable-stayed bridges[J].Earth-quake Engineering and Structural Dynamics,1992,21:1-20.
[20]Saxena,V..Spatial Variation of Earthquake Ground Motion and Development of Bridge Fragility Curves[D].New Jerser PrincetonUniversity,2000.
[21]Zanardo,G.,Hao,H.,Modema,C..Seismic response of multi-span simply supported bridges to a spatially varying earthquake groundmotion[J].Earthquake Engineering and Structural Dynamics,2002,31:1325-1345.
[22]Kim,S.H.,Feng,M.Q..Fragility analysis of bridges under ground motion with spatial variation[J].International Journal of Non-Lin-era Mechanics,2003,38:705-721.
[23]Lou,L.,Zerva,A..Effects of spatially variable ground motions on the seismic response of a skewed,multi-span,RC highway bridge[J].Soil Dynamics and Earthquake Engineering,2005,1(7):31-37.
[24]Sextos,A.G.,Kappos,A.J.,Pitilakis,K.D..Inelastic dynamic analysis of RC bridges accounting for spatial variability of ground mo-tion,site effects and soil-structure interaction phenomena.Part 2:parametric study.[J]Earthquake Engineering and Structural Dy-namics,2003,32b:629-652.
[25]Sextos,A.G.,Kappos,A.J.,Pitilakis,K.D..Inelastic dynamic analysis of RC bridges accounting for spatial variability of ground mo-tion,site effects and soil-structure interaction phenomena.Part 1:methodology and analytical tools﹠Part 2:parametric study.[J]Earthquake Engineering and Structural Dynamics,2003a,32:607-627.
[26]Ymmamura,N.A.,Tanaka,H..Response analysis of flexible MDF systems for multiple-support seismic excitations.[J].EarthquakeEngineering and Structural Dynamics,1990,19:345-357.
[27]Soyluk,K.,Dumanoglu,A.A.Comparison of asynchronous and stochastic dynamic reaponses of a cable-stayed bridge.[J].Engi-neering Structures,2000,22:435-445.
[28]林家浩,张亚辉.随机振动的虚拟激励法[M]北京:科学出版社,2004.
[29]Lin.J.H.,Zhao,Y..Seismic analysis methods of long-span structures and recent advances[J].Advances in Mechanmics,2001,31(3):350-360.
[30]林家浩,张亚辉,赵岩.大跨度结构抗震分析方法及近期进展[J].力学进展,2001,31(3):350-360.
[2]Yang,C.Y..Seismic analysis of long span bridges including the effects of spatial varaation of seismic waes on bridges[D].Hong Kong:Hong Kong University of Science and Technology,2007.
[3]Abdel-Ghaffar,A.M.,Rubin,L.I..Suspension bridge responses to multiple-support excitations[J].Journal of the Engineering Mechan-ics Dibision,ASCE,1982,108(2):419-435.
[4]Harichandran,R.S.,Hawwari,A.,Sweidan,B.N..Response of long-span briges to spatially varying ground motion[J].ASCE Journal ofStructural Engineering,1996,122(5):476-484.
[5]Allam,S.M.,Datta,T.K..Seismic behavior of cable-stayed bridge under multi-component random ground motion[J].Engineering Struc-tures,1999,21:62-74.
[6]Allam,S.M.,Datta,T.K..Seismic response of a cable-stayed bridge deck under multi-component non-stationary random ground motion[J].Earthquake Engineering and Structural Dynamics,2004,33:375-393.
[7]Wang,J.J.,Hu,S.D.,Wei,X.Effects of engineering gelolgical condition on response of suspension bridges[J].Soil Dynamics andEarthquake Engineering,1999,18:297-304.
[8]Fan,L.C.,Wang,J.J.,Chen,W..Response characteristic od long-span cable-stayed bridges under non-uniform seismic action[J].Chi-nese Journal of Computational Mechanics,2001,18(3):358-363.
[9]Zhang,Y.H.,Lin,J,H..Seismic response analysis of the Hong Kong Tsingma Bridge[J].Chinese Journal of Applied Mechanics,2002,19(3):25-30.
[10]Lin,J.H.,Zhang,Y.H.,Li,Q.S.,et al.Seismic spatial effects for long-span bridges using the pseudo excitation method[J].Engi-neering Structures,2004,26(9):1207-1216.
[11]Kiureghian,A.D.,Neuenhofer,A..Response spetrum method for multi-support seismic excitations[J].Earthquake Engineering andStructural Dynamics,1992,21:713-740.
[12]Berrah,M.,Kausel,E..Response spectrum analysis of structures subjected to spatially varying motions[J].Earthquake Engineeringand Structural Dynamics,1992,21:461-470.
[13]Berrah,M.,Kausel,E..A modal combination rule for spatially varying seismic motions[J].Earthquake Engineering and StructuralDynamics,1993,22:791-800.
[14]Allam,S.M.,Datta,T.K..Analysis of cable-stayed bridge under multi-component random ground motion by response spectrummethod[J].Engineering Structures,2000,22:1367-1377.
[15]Soyluk,K..Comparison of random vibration methods for multi-support seismic excitation analysis of long-span bridges[J].Engineer-ing Structures,2004,26:1573-1583.
[16]范立础,胡世德,叶爱军.大跨度桥梁抗震设计[M].北京:人民交通出版社,2001.
[17]Leger,P.,Ide,I.M.,Paultre,P..Multiple-support seismic analysis of large structures[J].Computers﹠Structures,1990,36(6):1153-1158.
[18]Nazmy,A.S..Nonlinear Earthquake-response Analysis of Cable-stayed Bridge Subjected to Multiple-support Excitations[D].Prince-ton University,1987.
[19]Nazmy,A.S.,Abdel-Ghaffar,A.M..Effects of ground motion spatial variability on the response of cable-stayed bridges[J].Earth-quake Engineering and Structural Dynamics,1992,21:1-20.
[20]Saxena,V..Spatial Variation of Earthquake Ground Motion and Development of Bridge Fragility Curves[D].New Jerser PrincetonUniversity,2000.
[21]Zanardo,G.,Hao,H.,Modema,C..Seismic response of multi-span simply supported bridges to a spatially varying earthquake groundmotion[J].Earthquake Engineering and Structural Dynamics,2002,31:1325-1345.
[22]Kim,S.H.,Feng,M.Q..Fragility analysis of bridges under ground motion with spatial variation[J].International Journal of Non-Lin-era Mechanics,2003,38:705-721.
[23]Lou,L.,Zerva,A..Effects of spatially variable ground motions on the seismic response of a skewed,multi-span,RC highway bridge[J].Soil Dynamics and Earthquake Engineering,2005,1(7):31-37.
[24]Sextos,A.G.,Kappos,A.J.,Pitilakis,K.D..Inelastic dynamic analysis of RC bridges accounting for spatial variability of ground mo-tion,site effects and soil-structure interaction phenomena.Part 2:parametric study.[J]Earthquake Engineering and Structural Dy-namics,2003,32b:629-652.
[25]Sextos,A.G.,Kappos,A.J.,Pitilakis,K.D..Inelastic dynamic analysis of RC bridges accounting for spatial variability of ground mo-tion,site effects and soil-structure interaction phenomena.Part 1:methodology and analytical tools﹠Part 2:parametric study.[J]Earthquake Engineering and Structural Dynamics,2003a,32:607-627.
[26]Ymmamura,N.A.,Tanaka,H..Response analysis of flexible MDF systems for multiple-support seismic excitations.[J].EarthquakeEngineering and Structural Dynamics,1990,19:345-357.
[27]Soyluk,K.,Dumanoglu,A.A.Comparison of asynchronous and stochastic dynamic reaponses of a cable-stayed bridge.[J].Engi-neering Structures,2000,22:435-445.
[28]林家浩,张亚辉.随机振动的虚拟激励法[M]北京:科学出版社,2004.
[29]Lin.J.H.,Zhao,Y..Seismic analysis methods of long-span structures and recent advances[J].Advances in Mechanmics,2001,31(3):350-360.
[30]林家浩,张亚辉,赵岩.大跨度结构抗震分析方法及近期进展[J].力学进展,2001,31(3):350-360.
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