The effect of dynamic train–bridge interaction on the bridge response during a train passage

Liu, Kun; Roeck, Guido De; Lombaert, Geert

doi:10.1016/j.jsv.2009.03.021

Cited by 106 publications

(47 citation statements)

References 10 publications

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“…It takes into account the mass of the vehicle but does not consider the effect of suspension. Finally, comprehensive moving oscillator models have been used by several authors [3,4,5,11,12]. Li and Su [3] established that the oscillator model leads to a lower response of the bridge than the moving force model due to the dynamic train-bridge interaction.…”

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confidence: 99%

Soil–structure interaction in resonant railway bridges

Romero

Solís

Domínguez

et al. 2013

Soil Dynamics and Earthquake Engineering

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This paper explores dynamic soil-bridge interaction in high speed railway lines. The analysis was conducted using a general and fully three-dimensional multi-body finite element-boundary element model formulated in the time domain to predict vibrations caused by trains passing over the bridge. The vehicle was modelled as a multi-body system, the track and the bridge were modelled using finite elements and the soil was considered as a half-space by the boundary element method. The dynamic response of bridges to vehicle passage is usually studied using moving force and moving mass models. However, the multi-body system allows to consider the quasi-static and dynamic excitation mechanisms. Soil-structure interaction was taken into account by coupling finite elements and boundary elements. The paper presents the results obtained for a simply-supported short span bridge in a resonant regime under different soil stiffness conditions.

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confidence: 99%

Soil–structure interaction in resonant railway bridges

Romero

Solís

Domínguez

et al. 2013

Soil Dynamics and Earthquake Engineering

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“…Train-track interaction studies include the modelling of the track [7][8][9][10][11], modelling of the single degree of freedom (SDOF) car body system [12][13][14][15][16][17], and the general equations on which the study of passenger comfort conditions is based. The stiffness, damping and other system parameters are also taken into consideration [12].…”

Section: Train-track Interactionmentioning

confidence: 99%

“…The analysis of the vertical accelerations in the system is done at every 0.138-meter distance on the track, and critical velocity for passenger comfort condition is computed. The system is comprised of a spring having stiffness 'k' and a damper having damping value 'c' [12]. The single degree train system used in this study is shown in Figure 3.…”

Section: Modelling Of the Systemmentioning

confidence: 99%

“…Thus, the maximum speed for the train is taken as 100 km/h according to the Indian Railways. The values of mass, stiffness and the damping is taken for an Italian ETR 500Y high-speed train [12]. The values expressed in the Table 1 are also responsible for deciding the comfort conditions for the passengers, as seen in the dynamic equation given (1).…”

Section: Fig 3 -Model Of a Sdof Systemmentioning

confidence: 99%

See 1 more Smart Citation

Modelling and Analysis of an Irregular Railway Track System for Computation of Critical Velocity for Limiting Vertical Acceleration

Gupta¹,

Deka²,

Debnath³

2018

CEJ

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The irregularity in the railway tracks is a very common topic of interest among the researchers in recent times. The trains run on the tracks with very high velocities to meet the demands of the passengers. But due to the unevenness of the track, the body of the train car faces vertical accelerations, which in turn causes discomfort to the passengers sitting inside the train car. In the present report, vertical acceleration is analyzed for uneven tracks by taking the car body as a single degree of freedom model. The investigation shows a clear explanation of the critical velocity values for the train, so as to maintain the passenger comfort conditions. Random sinusoidal curves were generated using MATLAB to analyze the random unevenness of the track. It is observed that the vertical accelerations in the car body are directly proportional to the speed of the train. Finally, a critical velocity is proposed for a train running on uneven sinusoidal profile track such that, the vertical acceleration not exceeding 0.2g.

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“…A number of researchers have developed sophisticated train models for evaluating the accurate dynamic response of railway bridges. Liu et al developed a simple 3 degrees of freedom (DOF) train model to approximately investigate the properties of the train-bridge system [4]. While Xia et al developed a 27 DOF train model to examine human comfort when a train traverse over a long suspension rail bridge [5].…”

Section: Introductionmentioning

confidence: 99%