Vibration control of bridges under moving loads

Kwon, Ho-Chul; Kim, Man-Cheol; Lee, Inwon

doi:10.1016/s0045-7949(97)00087-4

Cited by 94 publications

(53 citation statements)

References 6 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…In equations (11), all the VED are considered to be identical (same material and properties) and symmetrically distributed between both beams with respect to the mid-span section. GE and η are, respectively, the Shear Storage Modulus and the Loss Factor of the VE material, evaluated at a constant temperature and frequency; AVED and hVED are, respectively the shear area and thickness of the VED layers of material; ωB is the fundamental circular frequency of the main beam; ND is the total number of VEDs, and xi and L are, respectively, the location of the ith damper measured along X axis and the length of each beam.…”

Section: Ec T G T G T      (12)mentioning

confidence: 99%

“…Kwon et al [11] and Wang et al [24] have investigated the application of Tuned Mass Dampers (TMDs) for this purpose. Aside from passive TMDs, a couple of authors have also addressed the application of pure viscous dampers (FVDs) to reduce the amplification in beams traversed by moving loads, such as Oliveto et al [21] and Museros and Martínez-Rodrigo [19,15,16].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Forward Algorithm for the construction control of cable-stayed bridges built on temporary supports

Galant

Payá-Zaforteza

et al. 2012

Engineering Structures

View full text Add to dashboard Cite

ElsevierMoliner Cabedo, E.; Museros Romero, P.; Martínez Rodrigo, MDLD. (2012). Retrofit of existing railway bridges of short to medium spans for high-speed traffic using viscoelastic dampers. Engineering Structures. 40:519-528. doi:10.1016Structures. 40:519-528. doi:10. /j.engstruct.2012 Abstract. This paper presents a study on the energy-absorbing capacities of viscoelastic dampers (VEDs) for reducing the resonant vibrations of simply supported high-speed railway bridges of short to medium span. The proposed solution is based on retrofitting the bridge with a set of discrete VEDs connected to the slab and to an auxiliary structure, placed underneath the bridge deck and resting on the abutments. In this investigation attention is focused on mitigating flexural vibrations; therefore, both the bridge and the auxiliary structure are modelled as simply supported beams with Bernoulli−Euler (B-E) behavior, whereas a discrete fractional derivative model simulates the behavior of the damping material. Firstly, a parametric study of this planar model is carried out, which has led to a dimensioning procedure of the dissipative system. The technical feasibility of this particular retrofit design is numerically evaluated by applying it to a numerical model of a simply supported railway bridge with inadmissible vertical accelerations. Numerical results show that the dynamic response of the structure can be significantly reduced in resonance with the proposed damping system.2

show abstract

Section: Ec T G T G T      (12)mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Forward Algorithm for the construction control of cable-stayed bridges built on temporary supports

Galant

Payá-Zaforteza

et al. 2012

Engineering Structures

View full text Add to dashboard Cite

show abstract

“…Patten et al [12] fitted a semi-active actuator to an existing bridge, reducing magnitudes of dynamic loading, greatly extending the predicted service life. The use of tuned mass dampers has been shown by Kwon et al [13] to be an effective means of passive vibration control. However, such methods require considerable installation or retrofitting effort on the bridge deck giving rise to the alternative solution of equipping the vehicle with a means of bridge friendly control.…”

Section: Active/semi-active Suspension Strategiesmentioning

confidence: 99%

Reduction of bridge dynamic amplification through adjustment of vehicle suspension damping

Harris

O’Brien

González

2007

Journal of Sound and Vibration

View full text Add to dashboard Cite

Publication informationJournal of Sound and Vibration, 302 (3): 471-485 Publisher ElsevierLink to online version http://dx.doi.org/10.1016/j.jsv.2006.11.020Item record/more information http://hdl.handle.net/10197/2531Publisher's statement All rights reserved. Publisher's version (DOI)10. 1016/j.jsv.2006.11.020 Downloaded 2019-03-25T00:10:59ZThe UCD community has made this article openly available. Please share how this access benefits you. Your story matters! (@ucd_oa) Some rights reserved. For more information, please see the item record link above. AbstractThis paper presents a novel approach to the reduction of short-span bridge dynamic responses to heavy vehicle crossing events. The reductions are achieved through adjustment of the vehicle suspension damping coefficient just before the crossing.Given pre-calculations of the response of a vehicle-bridge system to a set of 'unit' road disturbances, it is shown that a single optimum damping coefficient may be determined for a given velocity and any specified road profile. This approach can facilitate implementation since the optimum damping is selected prior to the bridge and there is no need to continuously vary the damping coefficient during the crossing.The concept is numerically validated using a bridge-vehicle interaction model with several road profiles, both measured and artificially generated. The bridge-friendly damping control strategy is shown to reduce bridge dynamics across a typical range of vehicle velocities, proving most effective for road profiles that induce large vibrations in the vehicle-bridge system.

show abstract

“…An efficient approach is to install control devices, in order to reduce the response of bridges subjected to passing trains [5]. Thus, the structural safety and serviceability of the bridge will be significantly increased.…”

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

View full text Add to dashboard Cite

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

show abstract

Vibration control of bridges under moving loads

Cited by 94 publications

References 6 publications

Forward Algorithm for the construction control of cable-stayed bridges built on temporary supports

Forward Algorithm for the construction control of cable-stayed bridges built on temporary supports

Reduction of bridge dynamic amplification through adjustment of vehicle suspension damping

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

Contact Info

Product

Resources

About