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A model for equivalent axle load factors

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dc.contributor.authorAmorim, Sara I.R.
dc.contributor.authorPais, Jorge
dc.contributor.authorVale, Aline C.
dc.contributor.authorMinhoto, Manuel
dc.date.accessioned2015-12-21T12:17:06Z
dc.date.available2015-12-21T12:17:06Z
dc.date.issued2015
dc.description.abstractMost design methods for road pavements require the design traffic, based on the transformation of the traffic spectrum, to be calculated into a number of equivalent passages of a standard axle using the equivalent axle load factors. Generally, these factors only consider the type of axle (single, tandem or tridem), but they do not consider the type of wheel on the axles, i.e., single or dual wheel. The type of wheel has an important influence on the calculation of the design traffic. The existing design methods assume that the equivalent axle load factors are valid for all pavement structures and do not consider the thickness and stiffness of the pavement layers. This paper presents the results of the development of a model for the calculation of the equivalent axle load factors considering the type of axle, the type of wheel and the constitution of the pavement. The model was developed based on the tensile strain at the bottom of the asphalt layer that is responsible for bottom-up cracking in asphalt pavement, which is the most widely considered distress mode for flexible road pavements. The work developed in this study also presents the influence of the type of wheel (single and dual) on pavement performance. The results of this work allowed the conclusion that the equivalent axle load factors for single wheels is approximately 10 times greater than for a dual wheel. This work also proposes average values for the equivalent axle load factors. An artificial neural network was developed to calculate the equivalent axle load factors.pt_PT
dc.identifier.citationAmorim, Sara I.R.; Pais, Jorge C.; Vale, Aline C.; Minhoto, Manuel (2015). A model for equivalent axle load factors. International Journal of Pavement Engineering. ISSN 1029-8436. 16:10, p. 881-893pt_PT
dc.identifier.doi10.1080/10298436.2014.968570pt_PT
dc.identifier.eissn1477-268X
dc.identifier.issn1029-8436
dc.identifier.urihttp://hdl.handle.net/10198/12532
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherTaylor & Francispt_PT
dc.relationFCT-PTDC-ECM-74033-2006pt_PT
dc.relation.publisherversion10.1080/10298436.2014.968570pt_PT
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/pt_PT
dc.subjectAxle typept_PT
dc.subjectEquivalent axle load factorpt_PT
dc.subjectEquivalent single axle loadpt_PT
dc.subjectRoad pavementspt_PT
dc.subjectTrafficpt_PT
dc.subjectWheel typept_PT
dc.titleA model for equivalent axle load factorspt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/5876-PPCDTI/PTDC%2FECM%2F74033%2F2006/PT
oaire.citation.endPage893pt_PT
oaire.citation.issue10pt_PT
oaire.citation.startPage881pt_PT
oaire.citation.titleInternational Journal of Pavement Engineeringpt_PT
oaire.citation.volume16pt_PT
oaire.fundingStream5876-PPCDTI
person.familyNameMinhoto
person.givenNameManuel
person.identifier.ciencia-id8111-B03D-46D2
person.identifier.orcid0000-0002-0612-0316
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsrestrictedAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublication5a104ed9-9e65-41a2-88af-43309083c985
relation.isAuthorOfPublication.latestForDiscovery5a104ed9-9e65-41a2-88af-43309083c985
relation.isProjectOfPublication648a1d9d-e566-4888-8e5e-7d6bf43e9b22
relation.isProjectOfPublication.latestForDiscovery648a1d9d-e566-4888-8e5e-7d6bf43e9b22

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