Repository logo
 
Publication

Study on different solutions to reduce the dynamic impacts in transition zones for high-speed rail

dc.contributor.authorSañudo, Roberto
dc.contributor.authorMarkine, Valeri
dc.contributor.authorPombo, João
dc.date.accessioned2019-01-28T10:41:04Z
dc.date.available2019-01-28T10:41:04Z
dc.date.issued2017
dc.description.abstractOne of the most important factors influencing the track maintenance is the transitions between parts of the track with different vertical stiffness. The dynamic forces in the super-structure, i.e. from rail to ballast/slab and subgrade, including every layer under ballast/slab until natural ground, are influenced by the type of materials, layer configuration and geometry. One way to mitigate track transition problems is to have a more gradual transition with a reduced stiffness differential. The aim of this research is to reduce vertical transiente stresses and displacements under track supports at track transition areas by combining different structural configurations. For this purpose, the train-track dynamic interaction in the transition zones with different vertical stiffness values is analysed using a finite element software. A high-speed train moving on a slab and ballasted track is considered travelling in both directions. The effect of different structural track designs is studied in realistic operation scenarios. The results allow concluding that the sleeper displacements and ballast stresses can be significantly reduced in the transition zones by making small changes in the track structural elements.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationSAÑUDO, Roberto; MARKINE, Valeri; POMBO, João – Study on different solutions to reduce the dynamic impacts in transition zones for high-speed rail. Journal of Theoretical and Applied Vibration and Acoustics. ISSN 2423-4761. Vol. 3, N.º 2 (2017), pp. 199-222pt_PT
dc.identifier.doihttp://dx.doi.org/ 10.22064/tava.2018.80091.1095pt_PT
dc.identifier.issn2423-4761
dc.identifier.urihttp://hdl.handle.net/10400.21/9366
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherIranian Society of Acoustics and Vibration and Avecinapt_PT
dc.relation.publisherversionhttp://tava.isav.ir/article_30707_3ffaca457b5d43f6eace8f256c745a9c.pdfpt_PT
dc.subjectTrack designpt_PT
dc.subjectTransition zonespt_PT
dc.subjectHigh-speed rail operationspt_PT
dc.subjectSleepers displacementpt_PT
dc.subjectTrack stressespt_PT
dc.subjectFinite elements methodpt_PT
dc.subjectTrack dynamic behaviorpt_PT
dc.titleStudy on different solutions to reduce the dynamic impacts in transition zones for high-speed railpt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage222pt_PT
oaire.citation.issue2pt_PT
oaire.citation.startPage199pt_PT
oaire.citation.titleJournal of Theoretical and Applied Vibration and Acousticspt_PT
oaire.citation.volume3pt_PT
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT

Files

Original bundle
Now showing 1 - 1 of 1
No Thumbnail Available
Name:
JPombo.pdf
Size:
2.25 MB
Format:
Adobe Portable Document Format
License bundle
Now showing 1 - 1 of 1
No Thumbnail Available
Name:
license.txt
Size:
1.71 KB
Format:
Item-specific license agreed upon to submission
Description: