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Experimental and numerical prediction of railway induced vibration

Journal of Zhejiang University-Science A(Applied Physics & Engineering) 2012年第11期13卷 802-813页

作者： Hans VERBRAKEN geert LOMBAERT geert degrande Department of Civil Engineering KU LeuvenKasteelpark Arenberg 40 B24483001 HeverleeBelgium

In this paper,both measurements and numerical simulations of railway induced vibration are discussed.A measurement campaign has been carried out along the high-speed railway track in Lincent,*** experimental determination of transfer functions and vibration velocity during train passages are discussed.A numerical model is introduced to predict the transfer functions and the vibration velocity during train *** comparison of experimental and numerical results demonstrates the importance of accurate numerical models and input *** results are obtained in the framework of the development of a hybrid prediction method,where numerical and experimental data can be combined to improve the prediction accuracy for railway induced vibration.

关键词： Component Railway induced vibration Experimental prediction Numerical prediction

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Prediction of vibrations induced by trains on line 8 of Beijing metro

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Journal of Zhejiang University-Science A(Applied Physics & Engineering) 2010年第4期11卷 280-293页

作者： De-yun DING Shashank GUPTA Wei-ning LIU geert LOMBAERT geert degrande Sehool of Civil Engineering Beijing Jiaotong University Beijing 100044 China Department of Civil Engineering K. U Leuven B3001 Heverlee Belgium

This paper mainly discusses the problem of ground-borne vibrations due to the planned line 8 of Beijing metro which passes under the National Measurement Laboratory.A lot of vibration sensitive equipments are placed in the *** is therefore necessary to study the impact of vibrations induced by metro trains on sensitive equipments and important to propound a feasible vibration mitigation *** on the coupled periodic finite element-boundary element (FE-BE) method,a 3D dynamic track-tunnel-soil interaction model for metro line 8 has been used to predict vibrations in the free field induced by trains running at variable speeds between 30 km/h and 80 km/*** types of track structures commonly used on the Beijing metro network have been considered:(1) high resilience direct fixation fasteners,(2) Vanguard fasteners,(3) a floating slab track and (4) a floating ladder *** each of these track types,the vibration isolation efficiency has been *** results of the numerical study can be used to predict vibrations in nearby buildings and to decide upon effective vibration countermeasures.

关键词： Ground-borne vibrations Coupled periodic finite element-boundary element (FE-BE) method Track structure Vibration isolation efficiency

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Dynamic analysis of rail transit elevated bridge with ladder track

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Frontiers of Structural and Civil Engineering 2009年第1期3卷 2-8页

作者： He XIA Yushu DENG Yongwei ZOU Guido DE ROECK geert degrande School of Civil Engineering Beijing Jiaotong UniversityBeijing 100044China Department of Civil Engineering Catholic University of LeuvenB3001HeverleeBelgium

In this paper,a dynamic analysis model of an elevated bridge with ladder tracks under moving train load is *** whole process of a train running through an elevated bridge at different speeds is *** dynamic responses of the elevated bridge with ladder track and the running safety and comfort index of train vehicles are *** with the dynamic responses of an elevated bridge with ordinary nonballasted slab track,the ladder track’s effect on reducing the vibration of an elevated bridge is *** analysis results show that the ladder track has good vibration reduction characteristics as compared to ordinary non-ballasted track.

关键词： rail transit elevated bridge ladder track dynamic response

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Running train induced vibrations and noises of elevated railway structures and their influences on environment

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Frontiers of Structural and Civil Engineering 2009年第1期3卷 9-17页

作者： He XIA Fei GAO Xuan WU Nan ZHANG Guido DE ROECK geert degrande School of Civil Engineering Beijing Jiaotong UniversityBeijing 100044China Department of Civil Engineering Catholic University of LeuvenB3001HeverleeBelgium

The vibrations and noises of elevated railway structures have been cause for concern due to their effects on the environment and the people living near elevated *** this paper,the main structural features of some new elevated bridges and station hall were *** generation mechanism of vibrations and noise of elevated structures induced by trains were *** noise induced by different types of elevated bridges,their influences on the environment and the theoretical method for the analysis of structure borne noise was ***,several field measurements on train induced noises at the platforms of elevated subway stations and bridges were presented.

关键词： railway elevated structure bridge station vibration noise environment

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Prediction of vibrations induced by trains on line 8 of Beijing metro

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Journal of Zhejiang University-Science A(Applied Physics & Engineering) 2012年第11期 813-813页

作者： Shashank Gupta geert Lombaert geert degrande

This paper mainly discusses the problem of ground-borne vibrations due to the planned line 8 of Beijing metro which passes under the National Measurement Laboratory.A lot of vibration sensitive equipments are placed in the *** is therefore necessary to study the impact of vibrations induced by metro trains on sensitive equipments and important to propound a feasible vibration mitigation *** on the coupled periodic finite element-boundary element(FE-BE) method,a 3D dynamic track-tunnel-soil interaction model for metro line 8 has been used to predict vibrations in the free field induced by trains running at variable speeds between 30 km/h and 80 km/*** types of track structures commonly used on the Beijing metro network have been considered:(1) high resilience direct fixation fasteners,(2) Vanguard fasteners,(3) a floating slab track and(4) a floating ladder *** each of these track types,the vibration isolation efficiency has been *** results of the numerical study can be used to predict vibrations in nearby buildings and to decide upon effective vibration countermeasures.

关键词： line

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