Influence of concrete strength and length/diameter on the axial capacity of CFT columns

dc.creatorOLIVEIRA, Walter Luiz Andrade de
dc.creatorNARDIN, Silvana De
dc.creatorDEBS, Ana Lucia H. de Cresce El
dc.creatorDEBS, Mounir Khalil El
dc.date.accessioned2012-10-19T01:08:56Z
dc.date.accessioned2018-07-04T14:48:15Z
dc.date.available2012-10-19T01:08:56Z
dc.date.available2018-07-04T14:48:15Z
dc.date.created2012-10-19T01:08:56Z
dc.date.issued2009
dc.identifierJOURNAL OF CONSTRUCTIONAL STEEL RESEARCH, v.65, n.12, p.2103-2110, 2009
dc.identifier0143-974X
dc.identifierhttp://producao.usp.br/handle/BDPI/17868
dc.identifier10.1016/j.jcsr.2009.07.004
dc.identifierhttp://dx.doi.org/10.1016/j.jcsr.2009.07.004
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1614665
dc.description.abstractThis paper presents an experimental analysis of the confinement effects in steel-concrete composite columns regarding two parameters: concrete compressive strength and column slenderness. Sixteen concrete-filled steel tubular columns with circular cross section were tested under axial loading. The tested columns were filled by concrete with compressive strengths of 30, 60. 80, and 100 MPa, and had length/diameter ratios of 3, 5, 7, and 10. The experimental values of the columns` ultimate load were compared to the predictions of 4 code provisions: the Brazilian Code NBR 8800:2008, Eurocode 4 (EN 1994-1-1:2004), AINSI/AISC 360:2005, and CAN/CSA S16-01:2001. According to the results, the load capacity of the composite columns increased with increasing concrete strength and decreased with increasing length/diameter ratio. In general, the code provisions were highly accurate in the prediction of column capacity. Among them, the Brazilian Code was the most conservative, while Eurocode 4 presented the values closest to the experimental results. (C) 2009 Elsevier Ltd. All rights reserved.
dc.languageeng
dc.publisherELSEVIER SCI LTD
dc.relationJournal of Constructional Steel Research
dc.rightsCopyright ELSEVIER SCI LTD
dc.rightsrestrictedAccess
dc.subjectConcrete-filled steel tubular columns
dc.subjectConfinement effect
dc.subjectExperimental analysis
dc.subjectCircular cross section
dc.subjectUltimate load
dc.titleInfluence of concrete strength and length/diameter on the axial capacity of CFT columns
dc.typeArtículos de revistas


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