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Numerical analysis of slender elliptical concrete filled columns under axial compression

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Numerical analysis of slender elliptical concrete filled columns under axial compression. / Dai, X. H.; Lam, Dennis; Jamaluddin, Norwati et al.
In: Thin-Walled Structures, Vol. 77, 04.2014, p. 26-35.

Research output: Contribution to Journal/Magazine › Journal article › peer-review

Harvard

Dai, XH, Lam, D, Jamaluddin, N & Ye, J 2014, 'Numerical analysis of slender elliptical concrete filled columns under axial compression', Thin-Walled Structures, vol. 77, pp. 26-35. https://doi.org/10.1016/j.tws.2013.11.015

APA

Dai, X. H., Lam, D., Jamaluddin, N., & Ye, J. (2014). Numerical analysis of slender elliptical concrete filled columns under axial compression. Thin-Walled Structures, 77, 26-35. https://doi.org/10.1016/j.tws.2013.11.015

Vancouver

Dai XH, Lam D, Jamaluddin N, Ye J. Numerical analysis of slender elliptical concrete filled columns under axial compression. Thin-Walled Structures. 2014 Apr;77:26-35. doi: 10.1016/j.tws.2013.11.015

Author

Dai, X. H. ; Lam, Dennis ; Jamaluddin, Norwati et al. / Numerical analysis of slender elliptical concrete filled columns under axial compression. In: Thin-Walled Structures. 2014 ; Vol. 77. pp. 26-35.

Bibtex

@article{ac4bb766ff244174b64c5ee5bb5639ee,
title = "Numerical analysis of slender elliptical concrete filled columns under axial compression",
abstract = "This paper presents an on-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 Euro code 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 Euro code 4 for circular and rectangular CFST columns maybe 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",
keywords = "Numerical modelling, Elliptical CFST column , Axial compressive load , Buckling reduction factor , Design buckling curves",
author = "Dai, {X. H.} and Dennis Lam and Norwati Jamaluddin and Jianqiao Ye",
year = "2014",
month = apr,
doi = "10.1016/j.tws.2013.11.015",
language = "English",
volume = "77",
pages = "26--35",
journal = "Thin-Walled Structures",
issn = "0263-8231",
publisher = "Elsevier Limited",

}

RIS

TY - JOUR

T1 - Numerical analysis of slender elliptical concrete filled columns under axial compression

AU - Dai, X. H.

AU - Lam, Dennis

AU - Jamaluddin, Norwati

AU - Ye, Jianqiao

PY - 2014/4

Y1 - 2014/4

N2 - This paper presents an on-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 Euro code 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 Euro code 4 for circular and rectangular CFST columns maybe 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

AB - This paper presents an on-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 Euro code 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 Euro code 4 for circular and rectangular CFST columns maybe 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

KW - Numerical modelling

KW - Elliptical CFST column

KW - Axial compressive load

KW - Buckling reduction factor

KW - Design buckling curves

U2 - 10.1016/j.tws.2013.11.015

DO - 10.1016/j.tws.2013.11.015

M3 - Journal article

VL - 77

SP - 26

EP - 35

JO - Thin-Walled Structures

JF - Thin-Walled Structures

SN - 0263-8231

ER -