Nonlinear analysis of axially loaded circular concrete-filled stainless steel tubular short columns

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dc.contributor.authorPatel, VIen_AU
dc.contributor.authorLiang, QQen_AU
dc.contributor.authorHadi, MNSen_AU
dc.date.accessioned2016-10-17T00:57:19Zen_AU
dc.date.available2016-10-17T00:57:19Zen_AU
dc.date.issued2014-10en_AU
dc.date.statistics2016-10-17en_AU
dc.description.abstractExperiments show that the ultimate compressive strength of stainless steel is much higher than its tensile strength. The full-range two-stage constitutive model for stainless steels assumes that stainless steels follow the same stress–strain behavior in compression and tension, which may underestimate the compressive strength of stainless steel tubes. This paper presents a fiber element model incorporating the recently developed full-range three-stage stress–strain relationships based on experimentally observed behavior for stainless steels for the nonlinear analysis of circular concrete-filled stainless steel tubular (CFSST) short columns under axial compression. The fiber element model accounts for the concrete confinement effects provided by the stainless steel tube. Comparisons of computer solutions with experimental results published in the literature are made to examine the accuracy of the fiber element model and material constitutive models for stainless steels. Parametric studies are conducted to study the effects of various parameters on the behavior of circular CFSST short columns. A design model based on Liang and Fragomeni's design formula is proposed for circular CFSST short columns and validated against results obtained by experiments, fiber element analyses, ACI-318 codes and Eurocode 4. The fiber element model incorporating the three-stage stress–strain relationships for stainless steels is shown to simulate well the axial load–strain behavior of circular CFSST short columns. The proposed design model gives good predictions of the experimental and numerical ultimate axial loads of CFSST columns. It appears that ACI-318 codes and Eurocode 4 significantly underestimate the ultimate axial strengths of CFSST short columns. © 2014 Elsevier Ltd.en_AU
dc.identifier.citationPatel, V. I., Liang, Q. Q., & Hadi, M. N. S. (2014). Nonlinear analysis of axially loaded circular concrete-filled stainless steel tubular short columns. Journal of Constructional Steel Research, 101, 9-18. doi:10.1016/j.jcsr.2014.04.036en_AU
dc.identifier.govdoc7319en_AU
dc.identifier.issn0143-974Xen_AU
dc.identifier.journaltitleJournal of Constructional Steel Researchen_AU
dc.identifier.pagination9-18en_AU
dc.identifier.urihttp://dx.doi.org/10.1016/j.jcsr.2014.04.036en_AU
dc.identifier.urihttp://apo.ansto.gov.au/dspace/handle/10238/7757en_AU
dc.identifier.volume101en_AU
dc.language.isoenen_AU
dc.publisherElsevieren_AU
dc.subjectStainless steelsen_AU
dc.subjectStrength functionsen_AU
dc.subjectElementsen_AU
dc.subjectExperiment planningen_AU
dc.subjectFibersen_AU
dc.subjectStressesen_AU
dc.titleNonlinear analysis of axially loaded circular concrete-filled stainless steel tubular short columnsen_AU
dc.typeJournal Articleen_AU
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