Behaviour of concrete-encased concrete-filled FRP tube (CCFT) columns under axial compression

Wang, W; Sheikh, MN; Hadi, MNS; Gao, D; Chen, G

Behaviour of concrete-encased concrete-filled FRP tube (CCFT) columns under axial compression

Wang, W

Sheikh, MN Hadi, MNS Gao, D Chen, G

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Publication Type:: Journal Article
Citation:: Engineering Structures, 2017, 147 pp. 256 - 268
Issue Date:: 2017-09-15

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Field	Value	Language
dc.contributor.author	Wang, W https://orcid.org/0000-0003-2782-8652	en_US
dc.contributor.author	Sheikh, MN	en_US
dc.contributor.author	Hadi, MNS	en_US
dc.contributor.author	Gao, D	en_US
dc.contributor.author	Chen, G	en_US
dc.date.issued	2017-09-15	en_US
dc.identifier.citation	Engineering Structures, 2017, 147 pp. 256 - 268	en_US
dc.identifier.issn	0141-0296	en_US
dc.identifier.uri	http://hdl.handle.net/10453/115299
dc.description.abstract	© 2017 Elsevier Ltd A new composite column named concrete-encased concrete-filled fibre reinforced polymer tube (CCFT) column has been proposed in this study. This composite column consists of an inner concrete-filled fibre reinforced polymer (FRP) tube, outer concrete confined with polymer grid, and concrete cover. In this study, a total of 16 concrete stub columns were cast and tested under axial compression. Columns were divided into eight groups, which included one group of plain concrete columns, two groups of FRP confined concrete columns, and five groups of CCFT columns. For FRP confined concrete columns, one layer and two layers of carbon FRP (CFRP) sheet were wrapped, respectively. For CCFT columns, glass FRP (GFRP) tube was used to confine the inner concrete, and polymer grid was used to confine the outer concrete. The test results show that considerable increase in strength and ductility can be obtained for CCFT columns. An analytical model has been developed to predict the axial compressive behaviour of CCFT columns. The analytical results have been found to be in good agreement with the experimental results. Based on the analytical model, the influences of different parameters on the axial compressive behaviour of CCFT columns have been investigated through parametric analyses.	en_US
dc.relation.ispartof	Engineering Structures	en_US
dc.relation.isbasedon	10.1016/j.engstruct.2017.05.061	en_US
dc.subject.classification	Civil Engineering	en_US
dc.title	Behaviour of concrete-encased concrete-filled FRP tube (CCFT) columns under axial compression	en_US
dc.type	Journal Article
utslib.citation.volume	147	en_US
utslib.for	0905 Civil Engineering	en_US
utslib.for	0912 Materials Engineering	en_US
utslib.for	0915 Interdisciplinary Engineering	en_US
pubs.embargo.period	Not known	en_US
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology/School of Civil and Environmental Engineering
utslib.copyright.status	closed_access
pubs.publication-status	Published	en_US
pubs.volume	147	en_US

Abstract:

© 2017 Elsevier Ltd A new composite column named concrete-encased concrete-filled fibre reinforced polymer tube (CCFT) column has been proposed in this study. This composite column consists of an inner concrete-filled fibre reinforced polymer (FRP) tube, outer concrete confined with polymer grid, and concrete cover. In this study, a total of 16 concrete stub columns were cast and tested under axial compression. Columns were divided into eight groups, which included one group of plain concrete columns, two groups of FRP confined concrete columns, and five groups of CCFT columns. For FRP confined concrete columns, one layer and two layers of carbon FRP (CFRP) sheet were wrapped, respectively. For CCFT columns, glass FRP (GFRP) tube was used to confine the inner concrete, and polymer grid was used to confine the outer concrete. The test results show that considerable increase in strength and ductility can be obtained for CCFT columns. An analytical model has been developed to predict the axial compressive behaviour of CCFT columns. The analytical results have been found to be in good agreement with the experimental results. Based on the analytical model, the influences of different parameters on the axial compressive behaviour of CCFT columns have been investigated through parametric analyses.

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http://hdl.handle.net/10453/115299