Fiber model for reinforced concrete walls

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dc.contributor.authorVásquez P., Jorge
dc.contributor.authorLlera Martin, Juan Carlos de la
dc.contributor.authorHube Ginestar, Matías Andrés
dc.date.accessioned2023-01-16T15:07:14Z
dc.date.available2023-01-16T15:07:14Z
dc.date.issued2017
dc.description.abstractDue to the taller reinforced concrete (RC) buildings that have been constructed in recent years, shear walls at lower levels are subjected to higher axial loads and bending moments. Although complex finite element inelastic models for shear walls can effectively couple several effects at the stress-strain level, they are computationally demanding, and hence robust and computationally efficient models are necessary to quickly assess the earthquake performance of these buildings. Herein, a pure two-node fiber element model that takes into account axial and bending components only, was modified to produce objective results under common loading conditions of the walls identified in Chilean buildings, i.e., high axial loads with linear bending moment variation between floors. A regularization is required to predict results independent of the element size and a shear model based on the modified compression field theory was added into this element to simulate the behavior of shear walls adequately. This investigation focuses in the formulation of the proposed model, its validation with experimental tests reported in the literature, and its application to actual RC walls of buildings. It was found that the steel stress-strain constitutive behavior, the inclusion of shear deformation, and the strain penetration effects played an important role in reproducing the experimental behavior of walls. Additionally, the proposed model is able to predict the observed collapse mechanisms of walls in buildings damaged during the 2010 earthquake. Since the element is capable of reproducing experimental tests and earthquake response, and since it is numerically more efficient than other approaches, its use for complete 3D inelastic dynamic analysis of buildings is promising.
dc.format.extent12 páginas
dc.fuente.origenSIPA
dc.identifier.urihttps://www.wcee.nicee.org/wcee/article/16WCEE/WCEE2017-3720.pdf
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/66338
dc.information.autorucEscuela de ingeniería ; Vásquez P., Jorge ; S/I ; 98273
dc.information.autorucEscuela de ingeniería ; Llera Martin, Juan Carlos de la ; 0000-0002-9064-0938 ; 53086
dc.information.autorucEscuela de ingeniería ; Hube Ginestar, Matías Andrés ; 0000-0003-0371-9048 ; 10832
dc.language.isoen
dc.nota.accesoContenido completo
dc.publisherNational Information Centre of Earthquake Engineering
dc.relation.ispartofWorld Conference on Earthquake Engineering (16° : 2017 : Santiago, Chile)
dc.rightsacceso abierto
dc.subjectReinforced concrete
dc.subjectFiber model
dc.subjectWall
dc.subjectRegularization
dc.titleFiber model for reinforced concrete walls
dc.typecomunicación de congreso
sipa.codpersvinculados98273
sipa.codpersvinculados53086
sipa.codpersvinculados10832
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