Browsing by Author "9a8609cf-6472-4f98-b143-805fc8f3d752"
Now showing items 1-20 of 22
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3D analysis of railway induced vibrations on skew girder bridges including ballast track-bridge interaction effects
Sánchez Quesada, Juan Carlos; Romero Ordóñez, Antonio; Galvín, Pedro; Moliner, Emma; Martínez-Rodrigo, María D. Elsevier (2023-01-11)This work is devoted to the analysis of the vibratory response of High-Speed (HS) multi-track railway bridges composed by simply-supported spans. In particular, it aims to investigate the influence of three geometrical ... -
3D printed energy harvesters for railway bridges-Design optimisation
Cámara Molina, Javier Cristóbal; Moliner, Emma; Martínez-Rodrigo, María D.; Connolly, D. P.; Yurchenko, D.; Galvín, Pedro; Romero, A. Elsevier (2023)This paper investigates the optimal design of 3D printed energy harvesters for railway bridges. The type of harvester studied is a cantilever bimorph beam with a mass at the tip and a load resistance. These parameters ... -
Analysis of the influence of the ballast track in the dynamic behaviour of single-track railway bridges of different typologies
Chordà Monsonís, Josep; Martínez-Rodrigo, María D.; Galvín, Pedro; Romero, A.; Moliner, Emma Universitat Politècnica de València (2021)Short-to-medium span simply-supported (SS) railway bridges are prone to experience high levels of vertical acceleration due to train passage. The necessity of predicting accurately their dynamic behaviour for design, ... -
Ballast shear effects on the dynamic response of railway bridges
Chordà Monsonís, Josep; Romero Ordóñez, Antonio; Moliner, Emma; Galvín, Pedro; Martínez-Rodrigo, María D. Elsevier (2022-10-09)Single-track railway bridges are susceptible of experiencing high levels of vertical acceleration on the deck that may be dangerously accentuated at resonance. This is especially critical for short-to-medium span simply ... -
Ballasted track interaction effects in railway bridges with simply-supported spans composed by adjacent twin single-track decks
Sánchez Quesada, Juan Carlos; Moliner, Emma; Romero, A.; Galvín, Pedro; Martínez-Rodrigo, María D. Elsevier (2021-09-08)This paper is devoted to track-bridge interaction phenomena in railway bridges of short simply-supported (SS) spans composed by ballasted tracks. These structures may experience high vertical acceleration levels under ... -
Comments on “Vibration of simply supported beams under a single moving load: A detailed study of cancellation phenomenon” by C.P. Sudheesh Kumar, C. Sujatha, K. Shankar
Museros, P.; Moliner, Emma Elsevier (2017-08)In a recent paper, Sudheesh Kumar et al. analysed, from dif- ferent points of view, the phenomenon of cancellation in simply supported beams under constant moving loads [1] . This article presented some novel facts ... -
Dynamic load allowance of long-span modular steel bridges
Chordà Monsonís, Josep; Moliner, Emma; Galvín, Pedro; Martínez-Rodrigo, María D.; Zacchei, Enrico; Tadeu, Antonio; Ferraz, I.; Romero Ordóñez, Antonio Elsevier (2023-02-22)Modular steel bridges are structures whose construction is based on regular prefabricated truss units. This presents several advantages, such as rapid and easy deployment, high adaptability to the terrain and reduced ... -
Dynamic performance of existing double track railway bridges at resonance with the increase of the operational line speed
Moliner, Emma; Martínez-Rodrigo, María D.; Museros, P. Elsevier (2017-02-01)This article addresses the dynamic behaviour of double track simply supported bridges of short to medium span lengths (10 m < L < 25 m) belonging to conventional railway lines. These structures are susceptible to experience ... -
Dynamic performance of existing double track railway bridges at resonance with the increase of the operational line speed
Moliner, Emma; Martínez-Rodrigo, María D.; Museros, P. Elsevier (2017)This article addresses the dynamic behaviour of double track simply supported bridges of short to medium span lengths (10 m < L < 25 m) belonging to conventional railway lines. These structures are susceptible to experience ... -
Effect of the end cross beams on the railway induced vibrations of short girder bridges
Moliner, Emma; Romero Ordóñez, Antonio; Galvín, Pedro; Martínez-Rodrigo, María D. Elsevier (2019-12-15)This work is devoted to the analysis of the railway-induced vertical vibrations of simplysupported double track bridges composed by pre-stressed concrete girder decks. Despite the low torsional stiffness that this particular ... -
Elasto-thermoelectric beam formulation for modeling thermoelectric devices
Palma Guerrero, Roberto; Moliner, Emma; Pérez Aparicio, J. L. Elsevier (2017-07)The present paper provides a dynamic, non-linear and fully coupled Finite Element (FE) formulation based on the Timoshenko beam theory to study elasto-thermoelectric responses in thermoelectric devices. The two main ... -
Energy harvesting analysis in railway bridges: an approach based on modal decomposition
Romero, A.; Cámara Molina, Javier Cristóbal; Moliner, Emma; Galvín, Pedro; Martínez-Rodrigo, María D. Elsevier (2021)In this paper the authors investigate the energy harvesting in railway bridges and analyse the performance under different operational conditions. An approximation based on modal superposition is proposed for the computation ... -
Evaluation of Transverse Impact Factors in Twin-Box Girder Bridges for High-Speed Railways
Moliner, Emma; Lavado, J.; Museros, P. American Society of Civil Engineers (2016-05)This paper discusses the dynamic behavior of twin-box girder bridges under high-speed railway traffic. On the basis of several representative examples derived from recently built high-speed bridges, this contribution ... -
Experimental study of railway bridges of several structural typologies
Galvín, Pedro; Moliner, Emma; Romero Ordóñez, Antonio; Martínez-Rodrigo, María D. National Technical University of Athens (NTUA). Institute of Structural Analysis and Antiseismic Research (2020-09)This work is devoted to the experimental evaluation of the dynamic response of railway bridges with common typologies in short-to-medium spans. -
Fast simulation of railway bridge dynamics accounting for soil–structure interaction
Galvín, Pedro; Romero Ordóñez, Antonio; Moliner, Emma; Connolly, David P.; Martínez-Rodrigo, María D. Springer (2021)A novel numerical methodology is presented to solve the dynamic response of railway bridges under the passage of running trains, considering soil–structure interaction. It is advantageous compared to alternative approaches ... -
Free vibrations of simply-supported beam bridges under moving loads: Maximum resonance, cancellation and resonant vertical acceleration
Museros, P.; Moliner, Emma; Martínez-Rodrigo, María D. Elsevier (2013)The advent of high-speed railways has raised many concerns regarding the behaviour of bridges. Particularly, the analysis of the free vibrations generated by each load is of great interest because they can possibly accumulate ... -
Maximum resonance and cancellation phenomena in orthotropic plates traversed by moving loads: Application to railway bridges
Martínez-Rodrigo, María D.; Moliner, Emma; Romero Ordóñez, Antonio; De Roeck, G.; Galvín, Pedro Elsevier (2019-11-09)The vibrational response of railway bridges is an issue of main concern, especially since the advent of High-Speed traffic. In the case of short-to-medium lengths and simply-supported spans excessive transverse acceleration ... -
On the vertical coupling effect of ballasted tracks in multi–span simply–supported railway bridges under operating conditions
Moliner, Emma; Martínez-Rodrigo, María D.; Galvín, Pedro; Chordà Monsonís, Josep; Romero Ordóñez, Antonio Routledge (2022)This contribution investigates the vertical coupling exerted by ballasted tracks on the vertical response of bridges composed either of (i) several successive simply-supported spans with weak coupling between them due to ... -
Rail-bridge interaction effects in single-track multi-span bridges. Experimental results versus numerical predictions under operating conditions
Martínez-Rodrigo, María D.; Galvín, Pedro; Moliner, Emma; Romero Ordóñez, Antonio National Technical University of Athens (NTUA). Institute of Structural Analysis and Antiseismic Research (2020-09)This paper is devoted to the analysis of rail-bridge interaction effects in railway bridges under the circulation of moving trains. In a first approach, a bidimensional Finite Element model is implemented. The rail and ... -
Retrofit of existing railway bridges of short to medium spans for high-speed traffic using viscoelastic dampers
Moliner, Emma; Museros, P.; Martínez-Rodrigo, María D. Elsevier (2012)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 ...