Utilize este identificador para referenciar este registo:
https://hdl.handle.net/1822/74867
Registo completo
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.date.accessioned | 2021-12-06T11:52:14Z | - |
dc.date.issued | 2022 | - |
dc.identifier.citation | A. Ramos, A. Gomes Correia, R. Calçada & P. Alves Costa (2021) Stress and permanent deformation amplification factors in subgrade induced by dynamic mechanisms in track structures, International Journal of Rail Transportation, DOI: 10.1080/23248378.2021.1922317 | por |
dc.identifier.issn | 2324-8378 | por |
dc.identifier.uri | https://hdl.handle.net/1822/74867 | - |
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, a research project of Shift2Rail. This work was partly financed by FCT/MCTES through national funds (PIDDAC) under the R&D Unit Institute for Sustainability and Innovation in Structural Engineering (ISISE), under reference UIDB/04029/2020. It has been also financially supported by national funds through FCT - Foundation for Science and Technology, under grant agreement [PD/BD/ 127814/2016] attributed to the Ana Ramos. Additionally, it was financially supported by: Base Funding - UIDB/04708/2020 of the CONSTRUCT - Instituto de I&D em Estruturas e Construções - funded by national funds through the FCT/MCTES (PIDDAC). | por |
dc.language.iso | eng | por |
dc.publisher | Taylor & Francis | por |
dc.relation | info:eu-repo/grantAgreement/FCT/POR_NORTE/PD%2FBD%2F127814%2F2016/PT | por |
dc.relation | info:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F04029%2F2020/PT | por |
dc.relation | info:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F04708%2F2020/PT | por |
dc.rights | restrictedAccess | por |
dc.subject | Ballasted and slab tracks | por |
dc.subject | Numerical model | por |
dc.subject | 2.5D model | por |
dc.subject | Permanent deformation | por |
dc.subject | Wavelength | por |
dc.subject | Amplification factor | por |
dc.subject | Subgrade | por |
dc.subject | Stiffness | por |
dc.title | Stress and permanent deformation amplification factors in subgrade induced by dynamic mechanisms in track structures | por |
dc.type | article | - |
dc.peerreviewed | yes | por |
dc.relation.publisherversion | https://www.tandfonline.com/doi/abs/10.1080/23248378.2021.1922317?tab=permissions&scroll=top | por |
oaire.citationStartPage | 298 | por |
oaire.citationEndPage | 330 | por |
oaire.citationIssue | 3 | por |
oaire.citationVolume | 10 | por |
dc.identifier.eissn | 2324-8386 | por |
dc.identifier.doi | 10.1080/23248378.2021.1922317 | por |
dc.date.embargo | 10000-01-01 | - |
dc.subject.wos | Science & Technology | por |
sdum.journal | International Journal of Rail Transportation | 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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Stress and permanent deformation amplification factors in subgrade induced by dynamic mechanisms in track structures.pdf Acesso restrito! | 5,17 MB | Adobe PDF | Ver/Abrir |