Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/81130
Title: Comparison investigation on the load capacity of octagonal, circular and square concrete filled steel tubes
Authors: Zhu, JY 
Chan, TM 
Keywords: Concrete filled steel tubes
Cross-section shape
Confinement
Issue Date: 2018
Publisher: University of Politecnica Valencia
Source: Proceedings of the 12th International Conference on Advances in Steel-Concrete Composite Structures (ASCCS 2018), Jun 27-29, 2018, University of Politecnica Valencia, Valencia, Spain 2018, p. 331-336 How to cite?
Abstract: This paper presents a comparative investigation on the load capacity of octagonal concrete filled steel tubes (CFST) with that of the commonly used circular and square CFST. Existing experimental data of octagonal CFST were collected and based on the cross-sectional properties of the existing octagonal specimens, the corresponding circular and square cross- section were generated under three different control parameters: total cross-sectional area of column, confinement ratio and axial stiffness. Those circular and square cross- sections were used in the numerical analysis of CFST to obtain the load capacity for the comparative investigation. Validated finite element models were built for the modeling of the circular and square CFST. The outcome of comparison shows that the confinement ratio is the crucial parameter to the difference of axial behaviour between octagonal and circular CFST. Under the same confinement ratio, octagonal CFST has a very close axial bearing performance to that in circular CFST and are much better than the square CFST.
URI: http://hdl.handle.net/10397/81130
DOI: 10.4995/ASCCS2018.2018.7071
Rights: 2018, Universitat Politècnica de València, CC BY-NC-ND. This work is licensed under a Creative Commons License Attribution-NonComercial-NoDerivatives 4.0 International (https://creativecommons.org/licenses/by-nc-nd/4.0/).
The following publication Zhu, J. Y., & Chan, T. M. (2018, June). Comparison investigation on the load capacity of octagonal, circular and square concrete filled steel tubes. In Proceedings of the 12th International Conference on Advances in Steel-Concrete Composite Structures. ASCCS 2018 (pp. 331-336). Editorial Universitat Politècnica de València is available at https://dx.doi.org/10.4995/ASCCS2018.2018.7071
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