Effect of axial loads in the seismic behavior of reinforced concrete walls with unconfined wall boundaries

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dc.catalogadoryvc
dc.contributor.authorAlarcón Olivari, Cristóbal Nicolás
dc.contributor.authorHube Ginestar, Matías Andrés
dc.contributor.authorLlera Martin, Juan Carlos de la
dc.contributor.otherPontificia Universidad Católica de Chile. Department of Structural and Geotechnical Engineering
dc.contributor.otherPontificia Universidad Católica de Chile. National Research Center for Integrated Natural Disaster Management
dc.date.accessioned2023-03-02T19:42:07Z
dc.date.available2023-03-02T19:42:07Z
dc.date.issued2014
dc.description.abstractAbout 2% of Reinforced Concrete (RC) buildings taller than nine stories suffered serious damage in structural walls during the 2010 Chile earthquake. The observed damage involved mostly crushing of concrete, buckling of vertical reinforcement, and opening of the horizontal reinforcement. This damage is attributed to poor concrete confinement in the web and boundaries, inadequate horizontal reinforcement detailing, and high axial loads. This research aims to reproduce the observed damage and evaluate the influence of axial loads in the seismic behavior of RC walls with unconfined boundaries. To achieve these objectives, three identical wall specimens were tested. The wall specimens were designed with characteristic wall detailing obtained from data of five damaged buildings. These wall specimens were tested under equal lateral displacement cycles and subjected to different axial load ratios. The flexural-compressive failure mode exhibited by damaged walls during the earthquake was reproduced in these tests. Experimental results indicate that high axial load has a significant effect on the seismic performance and failure mode of RC walls. Indeed, it triggers a dangerous brittle concrete crushing failure which occurs immediately after spalling of the concrete cover. (C) 2014 Elsevier Ltd. All rights reserved.
dc.description.funderCONICYT/FONDAP/15110017
dc.fechaingreso.objetodigital2023-03-02
dc.format.extent11 páginas
dc.fuente.origenWOS
dc.identifier.doi10.1016/j.engstruct.2014.04.047
dc.identifier.eissn1873-7323
dc.identifier.issn0141-0296
dc.identifier.urihttps://doi.org/10.1016/j.engstruct.2014.04.047
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/66517
dc.identifier.wosidWOS:000338812000002
dc.information.autorucESCUELA DE INGENIERÍA;ALARCÓN OLIVARI, CRISTÓBAL NICOLÁS;S/I;162350
dc.information.autorucESCUELA DE INGENIERÍA;HUBE GINESTAR, MATIAS ANDRES;S/I;10832
dc.information.autorucESCUELA DE INGENIERÍA;LLERA MARTIN, JUAN CARLOS DE LA;0000-0002-9064-0938;53086
dc.language.isoen
dc.nota.accesoContenido parcial
dc.pagina.final23
dc.pagina.inicio13
dc.publisherElsevier Sci Ltd
dc.revistaEngineering Structures
dc.rightsacceso restringido
dc.subjectReinforced concrete
dc.subjectAxial load
dc.subjectWall
dc.subjectExperiment
dc.subjectReinforcement buckling
dc.subjectSeismic behavior
dc.subjectFailure
dc.subjectShear Walls
dc.subject.ddc551.22
dc.subject.deweyCiencias de la tierraes_ES
dc.subject.ods11 Sustainable Cities and Communities
dc.subject.odspa11 Ciudades y comunidades sostenibles
dc.titleEffect of axial loads in the seismic behavior of reinforced concrete walls with unconfined wall boundaries
dc.typeartículo
dc.volumen73
sipa.codpersvinculados162350
sipa.codpersvinculados10832
sipa.codpersvinculados53086
sipa.indexWOS
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