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Cm-factor for RC slender columns under unequal eccentricities and skew angle loads at the ends

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Cm-factor for RC slender columns under unequal eccentricities and skew angle loads at the ends

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dc.contributor.author Da Costa Lino Leite, Luiz Carlos es_ES
dc.contributor.author Bonet Senach, José Luís es_ES
dc.contributor.author Pallarés Rubio, Luis es_ES
dc.contributor.author Miguel Sosa, Pedro es_ES
dc.date.accessioned 2015-12-09T12:44:58Z
dc.date.available 2015-12-09T12:44:58Z
dc.date.issued 2014
dc.identifier.issn 0141-0296
dc.identifier.uri http://hdl.handle.net/10251/58636
dc.description.abstract Reinforced concrete slender columns, in general, are subjected to a non-uniform bending moment law, due to the occurrence of unequal eccentricities and skew angles at the ends. Design codes suggest calculating an equivalent moment factor Cm in each bending direction with the aim of reducing the analysis of the column to another equivalent one with equal eccentricities and angles at the ends. This paper presents a new equation to compute the equivalent moment factor Cm derived from the numerical model. This model has been calibrated and checked with 255 experimental tests from the literature. The experiments correspond to RC slender columns, pinned pinned and subjected to short-term ultimate loads and unequal eccentricities at the ends, for both uniaxial bending and biaxial bending. In HSC slender columns, a factor k3 is proposed to be applied along the concrete cover region in order to take into account the concrete cover spalling off. From the comparison with the current formula of the design codes (ACI-318 and Eurocode 2), the proposed Cm increases the safety factor for low and medium slenderness of the column (&#955;g < 20), low levels of axial load (N/Ncr < 0.50), high-strength concrete (50 < fc < 100 MPa) and double curvature bending (&#946; < 0). The proposed formula allows reinforced concrete slender columns to be both checked and designed with enough accuracy for practice engineering, and is simple to apply. es_ES
dc.description.sponsorship The content of this article is part of a research work carried out by the Universitat Politecnica de Valencia and the Institute of Concrete Science and Technology (ICITECH). The authors of this work wish to thank the Research Bureau of the Spanish Ministry of Economy and Competitivenes, the Plan E and the European Regional Development Fund for the co-funding of the research projects BIA2006-06429 and BIA BIA-2012-32645. en_EN
dc.language Inglés es_ES
dc.publisher Elsevier es_ES
dc.relation.ispartof Engineering Structures es_ES
dc.rights Reserva de todos los derechos es_ES
dc.subject Cm-factor es_ES
dc.subject Slender column es_ES
dc.subject High-strength concrete es_ES
dc.subject Reinforced concrete es_ES
dc.subject Biaxial bending es_ES
dc.subject Unequal load eccentricities es_ES
dc.subject.classification INGENIERIA DE LA CONSTRUCCION es_ES
dc.title Cm-factor for RC slender columns under unequal eccentricities and skew angle loads at the ends es_ES
dc.type Artículo es_ES
dc.identifier.doi 10.1016/j.engstruct.2014.04.020
dc.relation.projectID info:eu-repo/grantAgreement/MEC//BIA2006-06429/ES/ESTUDIO TEORICO-EXPERIMENTAL DE SOPORTES ESBELTOS DE HORMIGON DE ALTA RESISTENCIA SOMETIDOS A COMPRESION CON EXCENTRICIDADES Y ANGULOS DE ESVIAJE DESIGUALES EN SUS EXTREMOS/
dc.relation.projectID info:eu-repo/grantAgreement/MINECO//BIA2012-32645/ES/ESTRATEGIAS DE MEJORA DE LA DUCTILIDAD FRENTE A ACCIONES SISMICAS DE UNIONES DE ELEMENTOS PREFABRICADOS MEDIANTE EL EMPLEO DE NUEVOS MATERIALES/
dc.rights.accessRights Cerrado es_ES
dc.contributor.affiliation Universitat Politècnica de València. Departamento de Ingeniería de la Construcción y de Proyectos de Ingeniería Civil - Departament d'Enginyeria de la Construcció i de Projectes d'Enginyeria Civil es_ES
dc.description.bibliographicCitation Da Costa Lino Leite, LC.; Bonet Senach, JL.; Pallarés Rubio, L.; Miguel Sosa, P. (2014). Cm-factor for RC slender columns under unequal eccentricities and skew angle loads at the ends. Engineering Structures. 71(15):73-87. https://doi.org/10.1016/j.engstruct.2014.04.020 es_ES
dc.description.accrualMethod S es_ES
dc.relation.publisherversion http://dx.doi.org/10.1016/j.engstruct.2014.04.020 es_ES
dc.description.upvformatpinicio 73 es_ES
dc.description.upvformatpfin 87 es_ES
dc.type.version info:eu-repo/semantics/publishedVersion es_ES
dc.description.volume 71 es_ES
dc.description.issue 15 es_ES
dc.relation.senia 291884 es_ES
dc.contributor.funder Ministerio de Economía y Competitividad
dc.contributor.funder European Regional Development Fund


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