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Gravity load effects on the behaviour of reinforced concrete beam critical zones subjected to cyclic loads

2019-02-15Journal article Restricted access
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dc.contributor.authorGião, Rita
dc.contributor.authorLucio, Valter
dc.contributor.authorChastre, Carlos
dc.date.accessioned2019-02-08T10:32:00Z
dc.date.available2019-02-08T10:32:00Z
dc.date.issued2019-02-15
dc.description.abstractThe aim of the present study was to proceed to a numerical analysis of the gravity load effects on the behaviour of reinforced concrete beam critical zones when subjected to cyclic loads. A parametric study to assess the influence of different levels of gravity load on RC beam critical zones subjected to cyclic loading was carried out. For this purpose, assuming the level of gravity load as a variable parameter, a nonlinear numerical model of a beam-column connection, previously calibrated with experimental data, was used. In order to evaluate the gravity load effects in the global response, a numerical study of a RC frame system is also presented. The numerical results are analysed in terms of global hysteretic response, accumulated energy dissipation and equivalent viscous damping ratio. In this numerical study, it was observed that the hysteretic response depends on the load path. In the presence of higher gravity load levels, the structure hysteretic behaviour exhibits higher damage levels, associated to a failure mechanism corresponding to the formation of four span plastic hinges. Thus, the proper test procedure should involve the imposition of a reverse cyclic displacement history starting each cycle from the gravity load effects.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationGIÃO, Rita; LÚCIO, Valter; CHASTRE, Carlos – Gravity load effects on the behaviour of reinforced concrete beam critical zones subjected to cyclic loads. Engineering Structures. ISSN 0141-0296. Vol. 181, (2019), pp. 503-518pt_PT
dc.identifier.doi10.1016/j.engstruct.2018.12.045pt_PT
dc.identifier.issn0141-0296
dc.identifier.issn1873-7323
dc.identifier.urihttp://hdl.handle.net/10400.21/9470
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherElsevierpt_PT
dc.relation.publisherversionhttps://reader.elsevier.com/reader/sd/pii/S0141029617339317?token=288D71C3EAAB6557530AE9C099D4FF3A7D35A8C5A7B47712354BCD9CD339B1218DDB5AEC3D642EBFEF380E78CD725BE8pt_PT
dc.subjectReinforced concretept_PT
dc.subjectBeam critical zonespt_PT
dc.subjectGravity load effectspt_PT
dc.subjectCyclic responsept_PT
dc.subjectNonlinear analysispt_PT
dc.subjectFeixe de zonas críticaspt_PT
dc.subjectEfeitos de carga de gravidadept_PT
dc.subjectResposta cíclicapt_PT
dc.titleGravity load effects on the behaviour of reinforced concrete beam critical zones subjected to cyclic loadspt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage518pt_PT
oaire.citation.startPage503pt_PT
oaire.citation.titleEngineering Structurespt_PT
oaire.citation.volume181pt_PT
person.familyNameGião
person.familyNameLúcio
person.familyNameChastre
person.givenNameRita
person.givenNameVálter
person.givenNameCarlos
person.identifier2687516
person.identifier.ciencia-id561D-59FE-0017
person.identifier.ciencia-idB21A-5BED-AAE7
person.identifier.orcid0000-0003-0257-3163
person.identifier.orcid0000-0002-5864-551X
person.identifier.orcid0000-0002-7708-6995
person.identifier.ridH-4228-2016
person.identifier.ridF-8046-2014
person.identifier.ridC-6746-2008
person.identifier.scopus-author-id55484420900
person.identifier.scopus-author-id25927360600
person.identifier.scopus-author-id36008057200
rcaap.rightsclosedAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublicationadb75989-2846-467a-898e-dd3a606377fd
relation.isAuthorOfPublication3bf70064-2de6-4205-93f8-6dde591d61da
relation.isAuthorOfPublicationf632d2fc-caf8-4621-9e21-858a26ffcfd1
relation.isAuthorOfPublication.latestForDiscoveryf632d2fc-caf8-4621-9e21-858a26ffcfd1

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