Study of Vibrations in a Short-Span Bridge Under Resonance Conditions Considering Train-Track Interaction

Ribes-Llario, Fran; Velarte-González, José Luis; Perez-Garnes, Jose Luis; Real, Julia

doi:10.1590/1679-78252773

Cited by 5 publications

(2 citation statements)

References 18 publications

(14 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The variation of carbody mass due to the different numbers of passengers on board can affect the vehicle weight and therefore the forces between the train and bridge. In addition, train speed has significant impact on the dynamic responses of the bridge (Liu et al 2009;Xia et al 2014;Ribes-Llario et al 2016). Detailed information including the distribution, mean, and standard deviation of these parameters is demonstrated in Table 3.…”

Section: Input and Output Variablesmentioning

confidence: 99%

A machine learning based approach for efficient safety evaluation of the high speed train and short span bridge system

Gang

Cui

2020

Lat. Am. j. solids struct.

View full text Add to dashboard Cite

The dynamic responses of the high-speed railway bridge under the train passage can greatly affect the safety of the entire high-speed train and bridge system. Traditionally, these responses are obtained using either field measurement or numerical analysis. Both tools have their own limitations. For instance, the coupling dynamic train-bridge analysis is generally complicated and time-consuming. This paper proposes a novel machine learning based approach for efficient safety evaluation of the high speed train and short span bridge system. Artificial neural networks are established to map the complicated train-bridge system and to attain the critical bridge displacements. The proposed approach incorporates a complete numerical train-bridge system model to produce reliable data for the neural network training, considering multiple significant random features in the train-bridge system. Various neural network architectures are investigated and compared to find optimal ones that have considerable potentials in realizing online response prediction and safety evaluation. Although the proposed approach focuses on the high-speed train and short span bridge, the methodology is general and can also be applied to other scenarios associated with the vehicle-bridge systems.

show abstract

Section: Input and Output Variablesmentioning

confidence: 99%

A machine learning based approach for efficient safety evaluation of the high speed train and short span bridge system

Gang

Cui

2020

Lat. Am. j. solids struct.

View full text Add to dashboard Cite

show abstract

“…The seismic response control of an isolated three-span continuous reinforced concrete (RC) bridge with piers and a box girder is investigated under bi-directional components of three different real earthquake ground motions. Ribes-Llario et al (2016) reported that for higher excitation frequency, increased accelerations are induced, which consequently increases pier base shear. Therefore, in this study three earthquakes namely, Imperial Valley, 1940;Northridge, 1994;and Kobe, 1995 are considered with relatively high excitation frequency contents.…”

Section: Numerical Studymentioning

confidence: 99%

Effectiveness of Tuned Mass Dampers in Seismic Response Control of Isolated Bridges Including Soil-Structure Interaction

Elias

Matsagar

2017

Lat. Am. j. solids struct.

View full text Add to dashboard Cite

The effect of soil-structure interaction (SSI) on the dynamic responses of seismically isolated three-span continuous reinforced concrete (RC) bridge is investigated. Also, tuned mass damper(s) (TMD/s) is/are installed to control undesirable bearing displacement, even under the SSI effect. The TMDs are placed at the midspan of the bridge and each tuned with a modal frequency, while controlling up to first few modes as desirable. The soil surrounding the foundation of pier is modeled by frequency independent coefficients. Dynamic analysis is carried out in time domain using direct integration method. In order to specify the effects of the SSI, the responses of the non-isolated, isolated, and controlled isolated bridge are compared. It is observed that the soil surrounding the pier has significant effects on the bearing displacement of the isolated RC bridges. In addition, it is observed that the seismic responses of isolated RC bridge reduced significantly with installation of the TMDs.

show abstract

Comparisons between beam and continuum models for modelling wheel-rail impact at a singular rail surface defect

Shen

Deng

Wei

et al. 2021

International Journal of Mechanical Sciences

View full text Add to dashboard Cite

Study of Vibrations in a Short-Span Bridge Under Resonance Conditions Considering Train-Track Interaction

Cited by 5 publications

References 18 publications

A machine learning based approach for efficient safety evaluation of the high speed train and short span bridge system

A machine learning based approach for efficient safety evaluation of the high speed train and short span bridge system

Effectiveness of Tuned Mass Dampers in Seismic Response Control of Isolated Bridges Including Soil-Structure Interaction

Comparisons between beam and continuum models for modelling wheel-rail impact at a singular rail surface defect

Contact Info

Product

Resources

About