Seismic behavior of slender reinforced concrete walls

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dc.catalogadoryvc
dc.contributor.authorHube Ginestar, Matías Andrés
dc.contributor.authorMarihuén Fuentealba, Andrés Nicolás
dc.contributor.authorLlera Martin, Juan Carlos de la
dc.contributor.authorStojadinovic, B.
dc.contributor.otherPontificia Universidad Católica de Chile. Department of Structural and Geotechnical Engineering
dc.contributor.otherPontificia Universidad Católica de Chile. National Research Center of Integrated Natural Disaster Management
dc.date.accessioned2020-10-09T01:25:11Z
dc.date.available2020-10-09T01:25:11Z
dc.date.issued2014
dc.description.abstractResidential reinforced concrete buildings performed well during the 2010 M,, 8.8 Maule, Chile earthquake. However, brittle damage was observed in reinforced concrete structural walls. The most frequent observed damage in such walls was crushing of concrete due to flexural-compressive interaction, buckling and fracture of longitudinal reinforcement, and opening of the horizontal reinforcement. The main objective of this study is to understand the observed damage in slender walls after 2010 Maule earthquake and to reproduce and analyze experimentally the seismic behavior of such walls. The second objective is to provide recommendations to estimate the lateral displacement and the effective stiffness of slender walls. To achieve these objectives, six 1/2-scale slender reinforced concrete walls were tested using a conventional quasi-static cyclic incremental lateral displacement test protocol with a constant axial load. The test results are compared to a reference wall tested previously in the same research project. The variables analyzed in this study are: wall thickness, wall aspect ratio, use of uniformly distributed vertical reinforcement, detailing of 135-degree hooks for the horizontal reinforcement, addition of closed stirrups in the wall boundaries, and addition of transverse cross-ties. The observed damage in the tested walls was similar to that observed in walls of buildings damaged during the 2010 Maule earthquake. The behavior of the tested walls was dominated by bending due to their relatively large aspect ratio. The failure, determined by the loss of ability to carry axial load, occurred suddenly as a compression failure along the entire cross section at the base of the tested walls. Test results showed that a 25% reduction in wall thickness reduced the ultimate displacement capacity, ductility, and energy dissipation ability of the wall. Closed stirrups and cross-ties were effective in increasing displacement capacity and ductility, and closed stirrups were effective in preventing out-of-plane buckling of the wall after compression failure. The average effective stiffness ratio of the tested walls was 0.39, which is slightly larger than the ACI 318 suggestion of 035. (C) 2014 Elsevier Ltd. All rights reserved.
dc.description.funderCONICYT/FONDAP/15110017
dc.format.extent12 páginas
dc.fuente.origenConveris
dc.identifier.doi10.1016/j.engstruct.2014.09.014
dc.identifier.issn0141-0296
dc.identifier.urihttps://doi.org/10.1016/j.engstruct.2014.09.014
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/47336
dc.identifier.wosidWOS:000346622500032
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.information.autorucESCUELA DE INGENIERÍA;MARIHUÉN FUENTEALBA, ANDRÉS NICOLÁS;S/I;197122
dc.language.isoen
dc.nota.accesoContenido parcial
dc.pagina.final388
dc.pagina.inicio377
dc.revistaEngineering Structureses_ES
dc.rightsacceso restringido
dc.rightsacceso restringido
dc.subjectReinforced concretees_ES
dc.subjectSlenderes_ES
dc.subjectEarthquakees_ES
dc.subjectEffective stiffnesses_ES
dc.subjectBucklinges_ES
dc.subject.ddc551.22
dc.subject.deweyIngenieríaes_ES
dc.subject.ods11 Sustainable cities and communities
dc.subject.odspa11 Ciudades y comunidades sostenibles
dc.subject.otherMuros de hormigón - Efectos sísmicos - Pruebases_ES
dc.subject.otherDisipación de energíaes_ES
dc.subject.otherIngeniería sísmicaes_ES
dc.titleSeismic behavior of slender reinforced concrete wallses_ES
dc.typeartículo
dc.volumen80
sipa.codpersvinculados10832
sipa.codpersvinculados53086
sipa.codpersvinculados197122
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