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Influence of the SMA constitutive model on the longitudinal seismic response of RC bridges

2019Journal article Open access
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dc.contributor.authorNunes, Pedro
dc.contributor.authorLobo, Paulo Silva
dc.date.accessioned2023-11-15T09:14:29Z
dc.date.accessioned2023-11-15T09:14:30Z
dc.date.available2023-11-15T09:14:29Z
dc.date.available2023-11-15T09:14:30Z
dc.date.issued2019
dc.description.abstractSeveral studies indicate that the re-centring capacity presented by superelastic Shape Memory Alloys (SMA) can reduce the displacements of structures subjected to earthquakes. To quantify the errors of numerical predictions with different constitutive models, peak, relative and residual displacements of four two-framed reinforced concrete (RC) bridges, linked by SMA bars, subjected to seismic actions, were numerically assessed. Different ratios of the elastic natural period of vibration of the frames of the bridges were adopted. Lumped plasticity models were used to simulate the behaviour of the reinforced concrete columns. Five SMA uniaxial models were considered, combining linear, nonlinear, isothermal and nonisothermal conditions. The seismic action was modelled by real accelerograms. The results show that the relative displacements are more sensitive to the adopted SMA model than the peak and residual displacements. Significant relative differences, up to 70%, were obtained.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationNunes, P., & Lobo, P. S. (2019). Influence of the SMA constitutive model on the longitudinal seismic response of RC bridges. Procedia Structural Integrity, 17, 624-631.pt_PT
dc.identifier.doi10.1016/j.prostr.2019.08.084pt_PT
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherElsevierpt_PT
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/pt_PT
dc.subjectShape memory alloyspt_PT
dc.subjectSuperelasticitypt_PT
dc.subjectRe-centringpt_PT
dc.subjectConstitutive modelspt_PT
dc.subjectkinetic lawpt_PT
dc.subjectReinforced concretept_PT
dc.subject.pt_PT
dc.subjectFaculdade de Ciências Exatas e da Engenharia
dc.titleInfluence of the SMA constitutive model on the longitudinal seismic response of RC bridgespt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage631pt_PT
oaire.citation.startPage624pt_PT
oaire.citation.titleProcedia Structural Integritypt_PT
oaire.citation.volume17pt_PT
person.familyNameCamacho da Silva Lobo
person.givenNamePaulo Renato
person.identifier.ciencia-id0B12-4CA4-B7EC
person.identifier.orcid0000-0002-0512-2440
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublication0461b7ff-e7a2-48b0-a3ad-4d60dd6c1b0f
relation.isAuthorOfPublication.latestForDiscovery0461b7ff-e7a2-48b0-a3ad-4d60dd6c1b0f

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