基于多点输入的地铁引起房屋振动评价研究
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摘要
建立结构二维有限元分析模型,利用现场实测地铁运行引起地面振动加速度时程记录,采用多点输入,计算刚性地基上一框架结构由于地铁运行引起的振动加速度值;在此基础上,利用傅里叶变换计算1/3倍频程1Hz～80Hz内各频段对应的振动加速度级。利用同样的计算模型,采用一致输入和行波输入计算结构的振动强度;比较三种激励方式的计算结果,从而考察行波效应等对结构振动的影响。对地铁引起房屋振动做出评价。
Uniform excitation was used in almost all the existing literatures to determinate the underground train-induced vibrations in buildings. In this paper, a methodology for the quantitative evaluation of underground train-induced vibrations in a frame structure with consideration of multi-support excitation is presented. Two-dimensional finite element model is developed, using the results of a ground vibration measurement campaing purposely performed at the site as input excitations. The vibration levels in the structure are obtained to multi-support excitation, and the levels for traveling wave excitation and uniform excitation are also, respectively, calculated so that the comparison of the vibration levels in the building to the three types of excitations can be made. Furthermore, the quantitative evaluation of the vibration levels in the building is made.
Uniform excitation was used in almost all the existing literatures to determinate the underground train-induced vibrations in buildings. In this paper, a methodology for the quantitative evaluation of underground train-induced vibrations in a frame structure with consideration of multi-support excitation is presented. Two-dimensional finite element model is developed, using the results of a ground vibration measurement campaing purposely performed at the site as input excitations. The vibration levels in the structure are obtained to multi-support excitation, and the levels for traveling wave excitation and uniform excitation are also, respectively, calculated so that the comparison of the vibration levels in the building to the three types of excitations can be made. Furthermore, the quantitative evaluation of the vibration levels in the building is made.
引文
[1]王祥秋,杨林德,高文华.铁路隧道提速列车振动测试与荷载模拟[J].振动与冲击,2005,24(3):99—107.
[2]洪俊青,刘伟庆.地铁对周边建筑物振动影响分析[J].振动与冲击,2006,25(4):142—145.
[3]Hung HH,Yang Y B.A review of researches on ground-borne vibrations with emphasis on those induced by trains[J].Proceeding of the National Science Council,ROC(A),2001,25(1):1—16.
[4]Hanazato T,Ugai K,Mori M,et al.Three-dimensional a-nalysis of traffic-induced ground vibrations[J].Journal of Geotechnical Engineering,1991,117(8):1133—1151.
[5]周云,王伯生.行驶列车引起的周边建筑物振动分析[J].振动与冲击,2006,25(1):36—41.
[6]国家标准《住宅建筑室内振动限值及其测量方法标准》(GB/T50355-2005)[M].北京:中国建筑工业出版社,2005.
[7]Bitzenbauer J,Dinkel J.Dynamic interaction between a mov-ing vehicle and an infinite structure excited by irregularities—Fourier transforms solution[J].Archive of Applied Mechan-ics,2002,72:199—211.
[8]Lai C G,Callerio A,Faccioli E,et al.Prediction of railway-induced ground vibrations in tunnels[J].Journal of Vibra-tion and Acoustics,2005,127:503—514.
[9]Hunt HE M.Modelling of rail vehicles and track for calcula-tion of ground-vibration transmission into buildings[J].Journal of Sound and Vibration,1996,193(1):185—194.
[10]范立础.桥梁抗震[M].上海:同济大学出版社,1997.
[11]Rambabu K V,Allam M M.Response of an open-plane frame to multiple support horizontal seismic excitations with soil-structure interaction[J].Journal of Sound and Vibra-tion,2006,doi:10.1016/j.jsv.2006.07.008.
[12]Chua K H,Lo K W,BalendraT.Building response due to subway train traffic[J].Journal of Geotechnical Engineer-ing,1995,121(11):747—754.
[13]Bathe K J,Wilson E L.Numerical methods in finite element analysis[M].Prentice-Hall,Inc.,1976.
[14]徐植信,胡再龙.结构地震反应分析[M].北京:高等教育出版社,1993.
[15]Anil K.Choproa.Dynamics of Structures:Theory and Appli-cations to Earthquake Engineering[M].Beijing:Tsinghua Press,2005.
[16]大崎顺彦著,吕敏申,谢礼立译.地震动的谱分析入门[M].北京:地震出版社,1980.
[2]洪俊青,刘伟庆.地铁对周边建筑物振动影响分析[J].振动与冲击,2006,25(4):142—145.
[3]Hung HH,Yang Y B.A review of researches on ground-borne vibrations with emphasis on those induced by trains[J].Proceeding of the National Science Council,ROC(A),2001,25(1):1—16.
[4]Hanazato T,Ugai K,Mori M,et al.Three-dimensional a-nalysis of traffic-induced ground vibrations[J].Journal of Geotechnical Engineering,1991,117(8):1133—1151.
[5]周云,王伯生.行驶列车引起的周边建筑物振动分析[J].振动与冲击,2006,25(1):36—41.
[6]国家标准《住宅建筑室内振动限值及其测量方法标准》(GB/T50355-2005)[M].北京:中国建筑工业出版社,2005.
[7]Bitzenbauer J,Dinkel J.Dynamic interaction between a mov-ing vehicle and an infinite structure excited by irregularities—Fourier transforms solution[J].Archive of Applied Mechan-ics,2002,72:199—211.
[8]Lai C G,Callerio A,Faccioli E,et al.Prediction of railway-induced ground vibrations in tunnels[J].Journal of Vibra-tion and Acoustics,2005,127:503—514.
[9]Hunt HE M.Modelling of rail vehicles and track for calcula-tion of ground-vibration transmission into buildings[J].Journal of Sound and Vibration,1996,193(1):185—194.
[10]范立础.桥梁抗震[M].上海:同济大学出版社,1997.
[11]Rambabu K V,Allam M M.Response of an open-plane frame to multiple support horizontal seismic excitations with soil-structure interaction[J].Journal of Sound and Vibra-tion,2006,doi:10.1016/j.jsv.2006.07.008.
[12]Chua K H,Lo K W,BalendraT.Building response due to subway train traffic[J].Journal of Geotechnical Engineer-ing,1995,121(11):747—754.
[13]Bathe K J,Wilson E L.Numerical methods in finite element analysis[M].Prentice-Hall,Inc.,1976.
[14]徐植信,胡再龙.结构地震反应分析[M].北京:高等教育出版社,1993.
[15]Anil K.Choproa.Dynamics of Structures:Theory and Appli-cations to Earthquake Engineering[M].Beijing:Tsinghua Press,2005.
[16]大崎顺彦著,吕敏申,谢礼立译.地震动的谱分析入门[M].北京:地震出版社,1980.
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