Fully three-dimensional analysis of high-speed train–track–soil-structure dynamic interaction

Galvín, P.; Romero, A.; Domínguez, José Ferreirós

doi:10.1016/j.jsv.2010.06.016

Cited by 227 publications

(113 citation statements)

References 35 publications

Supporting

Mentioning

102

Contrasting

Unclassified

Order By: Relevance

“…The described model is implemented in the SSIFiBo toolbox for MATLAB previously developed by Galvín and Romero [40][41][42]. The FEM module of the toolbox does not include any pre-processor.…”

Section: Introductionmentioning

confidence: 99%

On the basic phenomenon of soil-structure interaction on the free vibration response of beams: Application to railway bridges

Doménech

Martínez-Rodrigo

Romero

et al. 2016

Engineering Structures

Self Cite

View full text Add to dashboard Cite

The dynamic transverse response of beam type bridges under railway traffic is addressed in this contribution. In particular, how soil-structure interaction may affect the critical or resonant speeds and the associated vibratory amplitudes is evaluated in detail. Resonance in beams, due to the circulation of equidistant loads, is highly influenced by the free vibration response that every single load leaves after traversing the structure. On this basis a numerical investigation is carried out analysing the effects of the wave propagation problem on the free vibration response of simply-supported beams in a wide range of travelling speeds. To this end a coupled three-dimensional boundary element-finite element model formulated in the time domain is used to reproduce the soil and structural behaviour, respectively. A catalogue of bridge deck typologies is defined, covering lengths, associated linear masses and fundamental frequencies that may experience high levels of transverse accelerations under resonant conditions, for nowadays existing trains and design speeds. Lengths ranging from 12.5 to 25 m are evaluated, along with fundamental frequencies covering most common typologies. A homogeneous soil is considered with shear wave speeds in the interval 150 to 365 m/s. From the single load free vibration parametric analysis conclusions are derived regarding the conditions of maximum free vibration and cancellation of the deck response. These conclusions are used afterwards to justify how resonant amplitudes of the bridge under the circulation of railway convoys may be affected by the soil properties, leading to substantially amplified responses or to almost imperceptible ones, and a numerical example is included to show the aforementioned situations.

show abstract

Section: Introductionmentioning

confidence: 99%

On the basic phenomenon of soil-structure interaction on the free vibration response of beams: Application to railway bridges

Doménech

Martínez-Rodrigo

Romero

et al. 2016

Engineering Structures

Self Cite

View full text Add to dashboard Cite

show abstract

“…Fortunately, it is now almost a standard to determine the soil properties by wave measurements and analysis; see examples in [12][13][14][15][16][17][18][19]. An important additional information is obtained from measured track irregularities as in [20][21][22][23][24].…”

Section: Introductionmentioning

confidence: 99%

Simultaneous Measurements of the Vehicle, Track, and Soil Vibrations at a Surface, Bridge, and Tunnel Railway Line

Auersch

2017

Shock and Vibration

View full text Add to dashboard Cite

A complex measuring campaign has been performed including the simultaneous measurement of vehicle, track, and soil vibrations during train runs at 16,25, 40, 63, 80, 100, 125, 140, and 160 km/h and impulse measurements of the passenger car, three track sections, and the soil. A ballast track on the soil surface and on a concrete bridge has been investigated as well as a slab track in a tunnel. The evaluation and comparison of all these data show a generally good agreement for all components if the strong low-and high-frequency cut-off characteristics of the layered and damped soil are incorporated. There is a strong causal correlation between the vehicle and the soil by the dynamic excitation forces and a weak relation between the track and the soil by the axle-sequence spectrum of the train. However, the similarity between the axle-impulse spectrum observed at the track and the spectra of the ground vibration leads to the special excitation component of "scattered axle impulses" which is predominant at the far field points of the soil.

show abstract

“…These approaches include the so-called two-and-a-half dimensional (2.5D) approach [4,5,6], widely used to discretise the cross-section of track and ground, with the longitudinal dimension modelled in the wavenumber domain. Fully three dimensional FE models or coupled FE-BE models in the time domain [7] are required when nonlinear track or soil components [8] are to be included. The use of FE and BE methods in numerical analyses can be very costly in terms of the computational hardware and the time required for the simulations.…”

Section: Introductionmentioning

confidence: 99%

A mixed space-time and wavenumber-frequency domain procedure for modelling ground vibration from surface railway tracks

Koroma

Thompson

Hussein

et al. 2017

Journal of Sound and Vibration

View full text Add to dashboard Cite

This paper presents a methodology for studying ground vibration in which the railway track is modelled in the space-time domain using the finite element method (FEM) and, for faster computation, discretisation of the ground using either FEM or the boundary element method (BEM) is avoided by modelling it in the wavenumber-frequency domain. The railway track is coupled to the ground through a series of rectangular strips located at the surface of the ground; their vertical interaction is described by a frequency-dependent dynamic stiffness matrix whose elements are represented by discrete lumped parameter models. The effectiveness of this approach is assessed firstly through frequency domain analysis using as excitation a stationary harmonic load applied on the rail. The interaction forces at the ballast/ground interface are calculated using the FE track through-ground coupling in the lumped parameter model, which has been found to be necessary for both track dynamics and ground vibration predictions.

show abstract

Fully three-dimensional analysis of high-speed train–track–soil-structure dynamic interaction

Cited by 227 publications

References 35 publications

On the basic phenomenon of soil-structure interaction on the free vibration response of beams: Application to railway bridges

On the basic phenomenon of soil-structure interaction on the free vibration response of beams: Application to railway bridges

Simultaneous Measurements of the Vehicle, Track, and Soil Vibrations at a Surface, Bridge, and Tunnel Railway Line

A mixed space-time and wavenumber-frequency domain procedure for modelling ground vibration from surface railway tracks

Contact Info

Product

Resources

About