Structural and dynamic performance of an asphalt slab track in a sharp curve

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Structural and dynamic performance of an asphalt slab track in a sharp curve

Structural and dynamic performance of an asphalt slab track in a sharp curve

Real, T. / Hernández, C. / Ribes, F. / Real, J. I.

Abstract The increasing preoccupation about railway externalities, such as train-induced vibrations, has prompted the incorporation of bituminous materials as a part of the railway infrastructure. In this paper, the structural and dynamic behavior of a real asphalt slab track, made of a mixture SMA-16 with a 0.5% of recycled plastomers is studied with a FEM model of the vehicle and the track considering both vertical and lateral dynamics. The FEM model is used to study the different dynamic behavior on the track surroundings due to the effect of the trains passing at different speeds. The paper has two main purposes. One is to provide the differences in dynamic response for straight and curved sections at three different speeds. The other aim of the paper is to obtain high tangential stresses in the interfaces between the different layers of the infrastructure. The results reveal how the structural behavior of the track is checked and demonstrate the important role of horizontal accelerations induced in the infrastructure.

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Title :

Structural and dynamic performance of an asphalt slab track in a sharp curve

Contributors:

Real, T. (author) / Hernández, C. (author) / Ribes, F. (author) / Real, J. I. (author)

Published in:

KSCE Journal of Civil Engineering ; 21 , 1 ; 315-321

Publication date :

2016-05-20

Size :

7 pages

ISSN :

1976-3808 , 1226-7988

DOI :

https://doi.org/10.1007/s12205-016-0489-2

Type of media :

Article (Journal)

Type of material :

Electronic Resource

Language :

English

Keywords :

railway curve , lateral dynamics , vehicle-track interaction , FEM , asphalt slab track Engineering , Civil Engineering , Industrial Pollution Prevention , Geotechnical Engineering & Applied Earth Sciences

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