土-建筑群动力相互作用的数值模拟
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摘要
针对土与建筑群的动力相互作用问题,该文建立了土与结构动力相互作用研究的被研究块体模型,给出一种处理建筑群与地基动力相互作用研究的波动数值方法。该方法便于研究城市中建筑群的地震响应。数值模拟结果表明:城市中建筑群的存在会使地震地面运动响应出现长尾波现象,竖向地震作用对结构的水平地震响应影响很大。
To the problem of the dynamic interactions between soil and buildings,a investigated lump model is established for studying the dynamic interaction between soil and buildings.Then a numerical approach by wave propagation simulation for the study is presented.It is a simple approach to study the earthquake responses of buildings located in city.The numerical results show that the existence of buildings causes the long coda wave phenomenon during seismic ground motion,and the vertical earthquake action has a strong influence on the horizontal earthquake responses of buildings.
To the problem of the dynamic interactions between soil and buildings,a investigated lump model is established for studying the dynamic interaction between soil and buildings.Then a numerical approach by wave propagation simulation for the study is presented.It is a simple approach to study the earthquake responses of buildings located in city.The numerical results show that the existence of buildings causes the long coda wave phenomenon during seismic ground motion,and the vertical earthquake action has a strong influence on the horizontal earthquake responses of buildings.
引文
[1]Bard P-Y,Campillo M,Chávez-Garcia F J,Sanchez-Sesma F.The Mexico earthquake of September19,1985-theoretical investigation of large-andsmall-scale amplification effects in the Mexico Cityvalley[J].Earthquake Spectra,1988,4:609―633.
[2]Chávez-Garcia F J,Bard P-Y.Site effects in Mexico Cityeight years after the September 1985 Michiganearthquakes[J].Soil Dynamics and EarthquakeEngineering,1994,13:229―247.
[3]F h D,Suhadolc P,Mueller S,Panza G F.A hybridmethod for the estimation of ground motion insedimentary basins:quantitative modeling of MexicoCity[J].Bulletin of the Seismological Society ofAmerica,1994,84:383―399.
[4]Wirgin A,Bard P-Y.Effects of buildings on the durationand amplitude of ground motion in Mexico City[J].Bulletin of the Seismological Society of America,1996,86:914―920.
[5]Clouteau D,Aubry D.Modifications of ground motion indense urban areas[J].Journal of ComputationalAcoustics,2001,6:1659―1675.
[6]Tsogka C,Wirgin A.Simulation of seismic response inan idealized city[J].Soil Dynamics and EarthquakeEngineering,2003,23:391―402.
[7]Groby J P,Tsogka C,Wirgin A.Simulation of seismicresponse in a city-like environment[J].Soil Dynamicsand Earthquake Engineering,2005,25:487―504.
[8]Kham M,Semblat J-F,Bard P-Y,Dangla P.Seismicsite-city interaction:main governing phenomena throughsimplified numerical models[J].Bulletin of theSeismological Society of America,2006,96(5):1934―1951.
[9]刘铁林,石大川,刘泓.高层框架结构转动惯性对其地震响应的影响[J].工程力学,2011,28(增刊I):110―114.Liu Tielin,Shi Dachuan,Liu Hong.Effects of rotaryinertia on the seismic response of high-rise structure[J].Engineering Mechanics,2011,28(Suppl I):110―114.(in Chinese)
[10]姜迎春,刘铁林,于忠诚.高层结构动力响应的波动分析方法[J].沈阳建筑大学学报(自然科学版),2008,24(5):778―782.Jiang Yingchun,Liu Tielin,Yu Zhongcheng.Dynamicsresponse analysis of high-rise structure by waveapproach[J].Journal of Shenyang Jianzhu University(Natural Science),2008,24(5):778―782.(in Chinese)
[11]Liu Tielin,Liu Kaishin,Zhang Jinxiang.Unstructuredgrid method for stress wave propagation in elastic media[J].Computer Methods in Applied Mechanics andEngineering,2004,193:2427―2452.
[12]Liu Tielin,Luan Yu,Zhong Wei.A numerical approachfor modeling near-fault ground motion and its applicationin the 1994 Northridge earthquake[J].Soil Dynamicsand Earthquake Engineering,2012,34(1):51―62.
[2]Chávez-Garcia F J,Bard P-Y.Site effects in Mexico Cityeight years after the September 1985 Michiganearthquakes[J].Soil Dynamics and EarthquakeEngineering,1994,13:229―247.
[3]F h D,Suhadolc P,Mueller S,Panza G F.A hybridmethod for the estimation of ground motion insedimentary basins:quantitative modeling of MexicoCity[J].Bulletin of the Seismological Society ofAmerica,1994,84:383―399.
[4]Wirgin A,Bard P-Y.Effects of buildings on the durationand amplitude of ground motion in Mexico City[J].Bulletin of the Seismological Society of America,1996,86:914―920.
[5]Clouteau D,Aubry D.Modifications of ground motion indense urban areas[J].Journal of ComputationalAcoustics,2001,6:1659―1675.
[6]Tsogka C,Wirgin A.Simulation of seismic response inan idealized city[J].Soil Dynamics and EarthquakeEngineering,2003,23:391―402.
[7]Groby J P,Tsogka C,Wirgin A.Simulation of seismicresponse in a city-like environment[J].Soil Dynamicsand Earthquake Engineering,2005,25:487―504.
[8]Kham M,Semblat J-F,Bard P-Y,Dangla P.Seismicsite-city interaction:main governing phenomena throughsimplified numerical models[J].Bulletin of theSeismological Society of America,2006,96(5):1934―1951.
[9]刘铁林,石大川,刘泓.高层框架结构转动惯性对其地震响应的影响[J].工程力学,2011,28(增刊I):110―114.Liu Tielin,Shi Dachuan,Liu Hong.Effects of rotaryinertia on the seismic response of high-rise structure[J].Engineering Mechanics,2011,28(Suppl I):110―114.(in Chinese)
[10]姜迎春,刘铁林,于忠诚.高层结构动力响应的波动分析方法[J].沈阳建筑大学学报(自然科学版),2008,24(5):778―782.Jiang Yingchun,Liu Tielin,Yu Zhongcheng.Dynamicsresponse analysis of high-rise structure by waveapproach[J].Journal of Shenyang Jianzhu University(Natural Science),2008,24(5):778―782.(in Chinese)
[11]Liu Tielin,Liu Kaishin,Zhang Jinxiang.Unstructuredgrid method for stress wave propagation in elastic media[J].Computer Methods in Applied Mechanics andEngineering,2004,193:2427―2452.
[12]Liu Tielin,Luan Yu,Zhong Wei.A numerical approachfor modeling near-fault ground motion and its applicationin the 1994 Northridge earthquake[J].Soil Dynamicsand Earthquake Engineering,2012,34(1):51―62.
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