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Mostrando ítems 1-10 de 19
Artículo
A transfer function method to predict building vibration and its application to railway defects
(Elsevier, 2020-01-30)
This work presents a simplified method to evaluate building shaking due to arbitrary base excitations, and an example application to railway problems. The model requires minimal computational effort and can be applied to ...
Artículo
On the vertical coupling effect of ballasted tracks in multi–span simply–supported railway bridges under operating conditions
(Taylor & Francis Group, 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 ...
Artículo
Experimental and numerical evaluation of the wind load on the 516 Arouca pedestrian suspension bridge
(Elsevier B.V., 2022-01)
The present work analyses the wind load effects on the 516 Arouca bridge, the world's longest pedestrian suspension bridge in 2020. Computational fluid dynamics (CFD) was used to model a range of wind angles of attack ...
Artículo
Dynamic load allowance of long-span modular steel bridges
(Elsevier, 2023-05)
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 c ...
Artículo
Vibration serviceability assessment of the world's longest suspended footbridge in 2020
(Elsevier, 2022-10)
This paper investigates the vibrations induced by humans through in situ behaviour tests of the 516 Arouca footbridge (Portugal), the world's longest span in 2020 (516 m). The study consists of in situ experimental tests ...
Artículo
Theoretical and experimental analysis of the quasi-static and dynamic behaviour of the world's longest suspension footbridge in 2020
(Elsevier, 2022-02)
This work validates the simplified theoretical, analytical and numerical models used in the preliminary design stage of the 516 Arouca footbridge over the River Paiva (Portugal), the world's longest suspension footbridge. ...
Artículo
Ballasted track interaction effects in railway bridges with simply-supported spans composed by adjacent twin single-track decks
(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 ...
Artículo
A novel high-performance quadrature rule for BEM formulations
(Elsevier, 2022-07)
This paper describes a general approach to compute the boundary integral equations that appear when the boundary element method is applied for solving common engineering problems. The proposed procedure consists of a new ...
Artículo
Maximum resonance and cancellation phenomena in orthotropic plates traversed by moving loads: Application to railway bridges
(Elsevier, 2020-03-01)
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 ...
Artículo
3D printed energy harvesters for railway bridges-Design optimisation
(Elsevier, 2023-05)
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 are ...