Axial compressive behavior of concrete-filled FRP-steel wire reinforced thermoplastics pipe hybrid columns

Guo, YC; Xiao, SH; Shi, SW; Zeng, JJ; Wang, WQ; Zhao, HC

Axial compressive behavior of concrete-filled FRP-steel wire reinforced thermoplastics pipe hybrid columns

Guo, YC Xiao, SH Shi, SW Zeng, JJ Wang, WQ Zhao, HC

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Publisher:: ELSEVIER SCI LTD
Publication Type:: Journal Article
Citation:: Composite Structures, 2020, 244
Issue Date:: 2020-07-15

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Field	Value	Language
dc.contributor.author	Guo, YC
dc.contributor.author	Xiao, SH
dc.contributor.author	Shi, SW
dc.contributor.author	Zeng, JJ
dc.contributor.author	Wang, WQ
dc.contributor.author	Zhao, HC
dc.date.accessioned	2020-11-01T20:38:51Z
dc.date.available	2020-11-01T20:38:51Z
dc.date.issued	2020-07-15
dc.identifier.citation	Composite Structures, 2020, 244
dc.identifier.issn	0263-8223
dc.identifier.issn	1879-1085
dc.identifier.uri	http://hdl.handle.net/10453/143675
dc.description.abstract	© 2020 Elsevier Ltd This paper presents investigations on a new column form, namely, concrete-filled fiber-reinforced polymer-steel wire reinforced thermoplastics pipe (FRP-SRTP) columns (CFFSCs) which consist of a SRTP tube with an outer FRP confinement system and concrete filled in the core area. A series of axial compression tests were performed on CFFSCs, and parameters including the number of FRP layers, the FRP fiber type and the clear spacing of the FRP rings were investigated. The test results demonstrate that the concrete-filled SRTP tube columns have an excellent ductility and the outer FRP confinement system provides efficient confinement to CFFSCs. The dilation behavior of the concrete in CFFSCs with polyethylene terephthalate FRP is different to that of the concrete in CFFSCs with carbon FRP. Four existing design-oriented models are adopted to generate the ultimate axial stresses and their corresponding strains of concrete in CFFSCs. By comparing the test results and the theoretical predictions, it is found that the existing models provides inaccurate predictions for CFFSCs. The new column form is particularly suitable as a form of standing support for underground mines, where a novel supporting system requires both a large deformation capacity and a good structural integrity.
dc.language	English
dc.publisher	ELSEVIER SCI LTD
dc.relation.ispartof	Composite Structures
dc.relation.isbasedon	10.1016/j.compstruct.2020.112237
dc.rights	info:eu-repo/semantics/restrictedAccess
dc.subject	09 Engineering
dc.subject.classification	Materials
dc.title	Axial compressive behavior of concrete-filled FRP-steel wire reinforced thermoplastics pipe hybrid columns
dc.type	Journal Article
utslib.citation.volume	244
utslib.for	09 Engineering
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
pubs.organisational-group	/University of Technology Sydney
utslib.copyright.status	closed_access	*
dc.date.updated	2020-11-01T20:38:41Z
pubs.publication-status	Published
pubs.volume	244

Abstract:

© 2020 Elsevier Ltd This paper presents investigations on a new column form, namely, concrete-filled fiber-reinforced polymer-steel wire reinforced thermoplastics pipe (FRP-SRTP) columns (CFFSCs) which consist of a SRTP tube with an outer FRP confinement system and concrete filled in the core area. A series of axial compression tests were performed on CFFSCs, and parameters including the number of FRP layers, the FRP fiber type and the clear spacing of the FRP rings were investigated. The test results demonstrate that the concrete-filled SRTP tube columns have an excellent ductility and the outer FRP confinement system provides efficient confinement to CFFSCs. The dilation behavior of the concrete in CFFSCs with polyethylene terephthalate FRP is different to that of the concrete in CFFSCs with carbon FRP. Four existing design-oriented models are adopted to generate the ultimate axial stresses and their corresponding strains of concrete in CFFSCs. By comparing the test results and the theoretical predictions, it is found that the existing models provides inaccurate predictions for CFFSCs. The new column form is particularly suitable as a form of standing support for underground mines, where a novel supporting system requires both a large deformation capacity and a good structural integrity.

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http://hdl.handle.net/10453/143675