Dynamic performance of existing high-speed railway bridges under resonant conditions following a retrofit with fluid viscous dampers supported on clamped auxiliary beams

Lavado, J.; Doménech, A.; Martínez-Rodrigo, M.D.

doi:10.1016/j.engstruct.2013.10.038

Cited by 27 publications

(14 citation statements)

References 25 publications

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“…The present model as shown in the figure 1, consist to retrofitting the beam by an inclined Fluid dampers, the dampers are connected between the surface of the bridge deck and the abutements, this creates an eccentricity between the connection point and the of the dampers and the neutral axis of the bridge, Generally this devices contains a single degree of freeom model, thus the equation of motion of the system expressed as my cy ky f    (1) Where y is the vertical displacement of the beam M the mass per unit length of the beam C the damping coefficient who contained the damping ratio generated by the fluid viscous damper. the aim of this work is to investigate the performance of an inclined fluid viscous dampers in order to reduce the dynamic response of the system, and to investigate the effect of nonlinearity by investigating the model proposed by Symans [5] for lineariarisation of the damping force.…”

Section: Present Modelmentioning

confidence: 99%

“…FVDs have been selected because they dissipate energy at a wide scope of frequency ranges, and not only at narrow ranges like TMDs. A few studies dated in this area, the first documented by Museros and Martinez-Rodrigo [1][2][3] are concerned with the reducing vertical accelerations in resonant case by using double beam systems. Luu et al [4] treated the same configuration proposed by Martinez by using the H  norm in order to determining the optimal damper constant.…”

Section: Introductionmentioning

confidence: 99%

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Vibration suppression for high speed railway bridges using fluid viscous dampers

2019

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The results of experimental and theoritical investigations of railway bridges have shown the significant dynamic responses exceeding that anticipated on certain railway bridges, such as a resonance phenomenon who have a great effect in the bridge. Alternatively , the use of structural control systems devices might be a very promising solution to attenuate undesirable vibration. The aim of this study, first, is to investigate the posibility of reducing the acceleration in an acceptable level by using fluid viscous dampers. The bridge-damper system is described by a single-degree-of-freedom model. The ,dampers are connected between the bottom surface of the bridge deck and the abutment, Finallay a linearisation model and a comparative study in order to investigate the effect of the nonlinearite of the device in the dynamic response of the system.

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Section: Present Modelmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Vibration suppression for high speed railway bridges using fluid viscous dampers

2019

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“…Figure 1 shows a sketch of a FVD. Several studies include investigations of FVDs using auxiliary beams, in order to connect the dampers to the superstructure [7,[10][11][12][13]. This retrofit method (as well as installation of TMDs) may, however, be unsuitable for some bridges, where ground conditions or barriers in the surroundings limit the accessibility for heavy construction machinery.…”

Section: Introductionmentioning

confidence: 99%

Parametric Evaluation of Viscous Damper Retrofit for High-Speed Railway Bridges

Rådeström¹,

Tell²,

Kaustell³

et al. 2015

Proceedings of the 5th International Conference on Computational Methods in Structural Dynamics and Earthquake Engineering (COM

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Abstract. Several of the bridges belonging to the Bothnia Line, located in northern Sweden, do not theoretically fulfil the current design limit for the vertical deck acceleration, when being subjected to high-speed trains. Hence, it is important to find appropriate vibration mitigation strategies that are applicable to railway bridges, in order to reduce the acceleration caused by passing trains. One way of solving this problem is to install external viscous dampers.A finite element solution for damper retrofit of high-speed railway bridges is proposed in this paper. The bridge is modelled as a two-dimensional Euler-Bernoulli beam, with inclined dashpots connected between the superstructure and the abutments. Furthermore, this paper highlights the influence of several parameters on the effectiveness of the dampers.1672

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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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Dynamic performance of existing high-speed railway bridges under resonant conditions following a retrofit with fluid viscous dampers supported on clamped auxiliary beams

Cited by 27 publications

References 25 publications

Vibration suppression for high speed railway bridges using fluid viscous dampers

Vibration suppression for high speed railway bridges using fluid viscous dampers

Parametric Evaluation of Viscous Damper Retrofit for High-Speed Railway Bridges

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

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