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dc.contributor.authorDai, Xianghe*
dc.contributor.authorLam, Dennis*
dc.contributor.authorJamaluddin, N.*
dc.contributor.authorYe, J.*
dc.date.accessioned2014-04-25T12:40:15Z
dc.date.available2014-04-25T12:40:15Z
dc.date.issued2014
dc.identifier.citationDai X, Lam D, Jamaluddin N and Ye J (2014) Numerical Analysis of Slender Elliptical Concrete Filled Columns under Axial Compression. Thin-Walled Structures. 77(1): 26-35.en_US
dc.identifier.urihttp://hdl.handle.net/10454/5930
dc.description.abstractThis paper presents a non-linear finite element model (FEM) used to predict the behaviour of slender concrete filled steel tubular (CFST) columns with elliptical hollow sections subjected to axial compression. The accuracy of the FEM was validated by comparing the numerical prediction against experimental observation of eighteen elliptical CFST columns which carefully chosen to represent typical sectional sizes and member slenderness. The adaptability to apply the current design rules provided in Eurocode 4 for circular and rectangular CFST columns to elliptical CFST columns were discussed. A parametric study is carried out with various section sizes, lengths and concrete strength in order to cover a wider range of member cross-sections and slenderness which is currently used in practices to examine the important structural behaviour and design parameters, such as column imperfection, non-dimension slenderness and buckling reduction factor, etc. It is concluded that the design rules given in Eurocode 4 for circular and rectangular CFST columns may be adopted to calculate the axial buckling load of elliptical CFST columns although using the imperfection of length/300 specified in the Eurocode 4 might be over-conservative for elliptical CFST columns with lower non-dimensional slenderness.en_US
dc.language.isoenen_US
dc.subjectNumerical modelling; Elliptical CFST column; Axial compressive load; Buckling reduction factor; Design buckling curvesen_US
dc.subjectNumerical modellingen_US
dc.subject; Elliptical CFST columnen_US
dc.subject; Concrete filleden_US
dc.subject; Steel tube columnen_US
dc.subject; Axial compressionen_US
dc.titleNumerical analysis of slender elliptical concrete filled columns under axial compressionen_US
dc.status.refereedyesen_US
dc.typeArticleen_US
dc.type.versionNo full-text available in the repositoryen_US
dc.identifier.doihttps://doi.org/10.1016/j.tws.2013.11.015


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