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https://hdl.handle.net/1822/74869
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Campo DC | Valor | Idioma |
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dc.contributor.author | Ramos, A. | por |
dc.contributor.author | Correia, A. Gomes | por |
dc.contributor.author | Calçada, R. | por |
dc.contributor.author | Costa, P. Alves | por |
dc.contributor.author | Esen, A. | por |
dc.contributor.author | Woodward, P. K. | por |
dc.contributor.author | Connolly, D. P. | por |
dc.contributor.author | Laghrouche, O. | por |
dc.date.accessioned | 2021-12-06T12:02:50Z | - |
dc.date.issued | 2021 | - |
dc.identifier.citation | A. Ramos, A. Gomes Correia, R. Calçada, P. Alves Costa, A. Esen, P.K. Woodward, D.P. Connolly, O. Laghrouche, Influence of track foundation on the performance of ballast and concrete slab tracks under cyclic loading: Physical modelling and numerical model calibration, Construction and Building Materials, Volume 277, 2021, 122245, https://doi.org/10.1016/j.conbuildmat.2021.122245 | por |
dc.identifier.issn | 0950-0618 | por |
dc.identifier.uri | https://hdl.handle.net/1822/74869 | - |
dc.description.abstract | In this paper, the performance of different railway structures – ballasted and two types of slab tracks (Rheda system and a ballastless track only constituted by the concrete slab) – is evaluated in terms of stresses and permanent deformations through the selection of some important parameters: wavelength of the unevenness profile, train’s speed, subgrade’s characteristics and spatial variability of the track unevenness profile. The elastodynamic response of 60 case studies is computed through a 2.5D model FEM-PML and the long-term behaviour is assessed by the implementation of a permanent deformation model. The obtained results are analysed through innovative stress and permanent deformation amplification factors in the subgrade layer. This study concludes that the train’s speed and the mechanical properties of the subgrade are the factors that most affect the long-term performance of the subgrade of railway structures, which must be considered for further optimization of the rail track structures. | por |
dc.description.sponsorship | This work was partially carried out under the framework of In2Track2 (Shift2Rail). This work was also supported by FCT - ‘‘Fundação para a Ciência e a Tecnologia”, within ISISE, project UID/ECI/04029/2019. Additionally, by FCT: PD/BD/127814/2016 and FCT/MCTES (PIDDAC): UIDB/04708/2020 of the CONSTRUCT – ‘‘Instituto de I&D em Estruturas e Construções”. The authors are also grateful to the UK Engineering and Physical Sciences Research Council (EPSRC) for funding the LOCORPS project under Grant Number EP/N009207/1 | por |
dc.language.iso | eng | por |
dc.publisher | Elsevier 1 | por |
dc.relation | In2Track2 (Shift2Rail) | por |
dc.relation | UID/ECI/04029/2019 | por |
dc.relation | D/BD/127814/2016 | por |
dc.relation | UIDB/04708/2020 | por |
dc.rights | restrictedAccess | por |
dc.subject | Railroad ballast track | por |
dc.subject | Concrete slab track | por |
dc.subject | Railway physical modelling | por |
dc.subject | Cyclic track testing | por |
dc.subject | Numerical model calibration | por |
dc.subject | Settlement | por |
dc.title | Influence of track foundation on the performance of ballast and concrete slab tracks under cyclic loading: physical modelling and numerical model calibration | por |
dc.type | article | - |
dc.peerreviewed | yes | por |
dc.relation.publisherversion | https://www.sciencedirect.com/science/article/abs/pii/S0950061821000052 | por |
oaire.citationVolume | 227 | por |
dc.identifier.doi | 10.1016/j.conbuildmat.2021.122245 | por |
dc.date.embargo | 10000-01-01 | - |
dc.subject.wos | Science & Technology | por |
sdum.journal | Construction and Building Materials | por |
oaire.version | VoR | por |
dc.subject.ods | Indústria, inovação e infraestruturas | por |
Aparece nas coleções: | ISISE - Artigos em Revistas Internacionais |
Ficheiros deste registo:
Ficheiro | Descrição | Tamanho | Formato | |
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CONBUILDMAT-Ramos et al.pdf Acesso restrito! | 3,53 MB | Adobe PDF | Ver/Abrir |