Dynamic analysis of railway bridge under high-speed trains

Xia, He; Zhang, Nan

doi:10.1016/j.compstruc.2005.02.014

Cited by 194 publications

(100 citation statements)

References 6 publications

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“…It is called secondary suspension. For the needs of calculations the railway track is working as the infinitely stiff structure and along with the rolling stock is one collaborative structure [8,9,10].…”

Section: Dynamic Modelling Of Pendolinomentioning

confidence: 99%

The Effect of Pendolino high-speed rail on the structure of buildings located in the proximity of railway tracks

Grębowski¹,

Ulman²

2016

International Journal of Applied Mechanics and Engineering

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The following research focuses on the dynamic analysis of impact of the high-speed train induced vibrations on the structures located near railway tracks. The office complex chosen as the subject of calculations is located in the northern part of Poland, in Gdańsk, in the proximity of Pendolino, the high speed train route. The high speed trains are the response for the growing needs for a more efficient railway system. However, with a higher speed of the train, the railway induced vibrations might cause more harmful resonance in the structures of the nearby buildings. The damage severity depends on many factors such as the duration of said resonance and the presence of additional loads. The studies and analyses helped to determinate the method of evaluating the impact of railway induced vibrations on any building structure. The dynamic analysis presented in the research is an example of a method which allows an effective calculation of the impact of vibrations via SOFISTIK program.

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Section: Dynamic Modelling Of Pendolinomentioning

confidence: 99%

The Effect of Pendolino high-speed rail on the structure of buildings located in the proximity of railway tracks

Grębowski¹,

Ulman²

2016

International Journal of Applied Mechanics and Engineering

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“…The PSD functions for class-5 and class-6 tracks (FRA5 and FRA6, respectively) are applied to passenger railways at maximum speeds of 144 km/h and 176 km/h, respectively. German railway spectra of high irregularity (GRSHI) and low irregularity (GRSLI) are applied to general railways and high speed railways with train speeds of over 250 km/h, respectively (Yang et al, 2004;Xia and Zhang, 2005).…”

Section: Power Spectrum Density Analysis Of Track Irregularitiesmentioning

confidence: 99%

Measurements and analysis of track irregularities on high speed maglev lines

Fang

Wang

Yang

2014

J. Zheijang Univ.-Sci.

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Abstract:Track irregularities have an obvious effect on the running stability and ride quality of maglev trains traveling at high speeds. We developed a measurement principle and data processing method which were applied to the high speed maglev line operating. The method, which includes partial filtering, integration, resampling of signal, and a low pass Butterworth filter, was used to calculate the irregularities of the maglev line. The spectra of the sample space were evaluated. A 7-parameter power spectrum density (PSD) function of line irregularities was fitted, based on the measured data. Analysis of the results showed that the maglev stator plane irregularities were better than conventional railway vertical rail irregularities when the wavelength was 5-100 m, and worse when the wavelength was 1-5 m. The PSD of maglev guidance plane irregularities was similar to that of cross level GRSHL (German railway spectra of high irregularity) when the wavelength was 10-100 m. The irregularities were clearly worse than cross level rail irregularities in a conventional railway when the wavelength was 1-10 m. This suggests that short-wavelength track irregularities of a maglev line caused by deviation and inclination of the stator plane should be minimized by strictly controlling the machining error of functional components during construction and maintenance.

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“…Yau investigated the dynamic response of a maglev vehicle [13] and a high-speed train [14] traveling over a multispan bridge undergoing ground support settlement. Utilizing a numerical dynamic model of the train-track-bridge system [15,16] and assuming that the rail deformation caused by pier differential settlement was entirely translated into track surface irregularities, Wang et al [17] related pier differential settlement with running safety and passenger comfort. By means of a similar method, Cao et al [18] considered the rail deformation induced by engineering behaviors near the bridge piers using a threedimensional FEM and studied the effect of pier differential settlement on the dynamic response of the train-track-bridge system with the same assumption.…”

Section: Introductionmentioning

confidence: 99%

Effect of Bridge‐Pier Differential Settlement on the Dynamic Response of a High‐Speed Railway Train‐Track‐Bridge System

Zhang

Shan

Xia

2017

Mathematical Problems in Engineering

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A model based on the theory of train-track-bridge coupling dynamics is built in the article to investigate how high-speed railway bridge pier differential settlement can affect various railway performance-related criteria. The performance of the model compares favorably with that of a 3D finite element model and train-track-bridge numerical model. The analysis of the study demonstrates that all the dynamic response for a span of 24 m is slightly larger than that for a span of 32 m. The wheel unloading rate increases with pier differential settlement for all of the calculation conditions considered, and its maximum value of 0.695 is well below the allowable limit. Meanwhile, the vertical acceleration increases with pier differential settlement and train speed, respectively, and the values for a pier differential settlement of 10 mm and speed of 350 km/h exceed the maximum allowable limit stipulated in the Chinese standards. On this basis, a speed limit for the exceeding pier differential settlement is determined for comfort consideration. Fasteners that had an initial tensile force due to pier differential settlement experience both compressive and tensile forces as the train passes through and are likely to have a lower service life than those which solely experience compressive forces.

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Dynamic analysis of railway bridge under high-speed trains

Cited by 194 publications

References 6 publications

The Effect of Pendolino high-speed rail on the structure of buildings located in the proximity of railway tracks

The Effect of Pendolino high-speed rail on the structure of buildings located in the proximity of railway tracks

Measurements and analysis of track irregularities on high speed maglev lines

Effect of Bridge‐Pier Differential Settlement on the Dynamic Response of a High‐Speed Railway Train‐Track‐Bridge System

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