Finite element modeling of FRP retrofitted RC column against blast loading

Li, ZX; Zhang, X; Shi, Y; Wu, C; Li, J

Finite element modeling of FRP retrofitted RC column against blast loading

Li, ZX Zhang, X Shi, Y Wu, C

Li, J

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Publisher:: Elsevier
Publication Type:: Journal Article
Citation:: Composite Structures, 2021, 263, pp. 1-15
Issue Date:: 2021-05-01

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Field	Value	Language
dc.contributor.author	Li, ZX
dc.contributor.author	Zhang, X
dc.contributor.author	Shi, Y
dc.contributor.author	Wu, C https://orcid.org/0000-0001-6786-7934
dc.contributor.author	Li, J https://orcid.org/0000-0003-2457-1994
dc.date.accessioned	2022-03-07T04:29:49Z
dc.date.available	2022-03-07T04:29:49Z
dc.date.issued	2021-05-01
dc.identifier.citation	Composite Structures, 2021, 263, pp. 1-15
dc.identifier.issn	0263-8223
dc.identifier.issn	1879-1085
dc.identifier.uri	http://hdl.handle.net/10453/155018
dc.description.abstract	Fiber-reinforced polymer (FRP) wrap could considerably improve the shear capacity and ductility of RC columns. FRP is therefore considered a potential material to strengthen the RC column against blast loading. Due to the high expense and safety concern of field blast tests, a very limited number of explosion tests on FRP retrofitted RC columns have been conducted, which hinders the understanding of the response of FRP retrofitted RC columns against blast loading. With advanced computational technology, it is convenient to develop a Finite Element (FE) model that can accurately capture the structural response of FRP retrofitted columns under blast loading. In this paper, a refined FE model was established to simulate the FRP retrofitted RC columns under blast loading. Strain rate effects on the concrete and steel reinforcing bar as well as the FRP composite of which the strain rate effect was commonly ignored, were all considered in the model. Comprehensive modifications were made to the Karagozian and Case concrete (KCC) model to accurately capture the mechanical properties of FRP-confined concrete. Finally, the FE model was validated with several available experimental tests. The developed FE model could capture the blast response of FRP retrofitted columns with good accuracy.
dc.language	English
dc.publisher	Elsevier
dc.relation.ispartof	Composite Structures
dc.relation.isbasedon	10.1016/j.compstruct.2021.113727
dc.rights	info:eu-repo/semantics/closedAccess
dc.subject	09 Engineering
dc.subject.classification	Materials
dc.title	Finite element modeling of FRP retrofitted RC column against blast loading
dc.type	Journal Article
utslib.citation.volume	263
utslib.for	09 Engineering
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
pubs.organisational-group	/University of Technology Sydney/Strength - CBI - Centre for Built Infrastructure
utslib.copyright.status	closed_access	*
pubs.consider-herdc	false
dc.date.updated	2022-03-07T04:29:47Z
pubs.publication-status	Published
pubs.volume	263

Abstract:

Fiber-reinforced polymer (FRP) wrap could considerably improve the shear capacity and ductility of RC columns. FRP is therefore considered a potential material to strengthen the RC column against blast loading. Due to the high expense and safety concern of field blast tests, a very limited number of explosion tests on FRP retrofitted RC columns have been conducted, which hinders the understanding of the response of FRP retrofitted RC columns against blast loading. With advanced computational technology, it is convenient to develop a Finite Element (FE) model that can accurately capture the structural response of FRP retrofitted columns under blast loading. In this paper, a refined FE model was established to simulate the FRP retrofitted RC columns under blast loading. Strain rate effects on the concrete and steel reinforcing bar as well as the FRP composite of which the strain rate effect was commonly ignored, were all considered in the model. Comprehensive modifications were made to the Karagozian and Case concrete (KCC) model to accurately capture the mechanical properties of FRP-confined concrete. Finally, the FE model was validated with several available experimental tests. The developed FE model could capture the blast response of FRP retrofitted columns with good accuracy.

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http://hdl.handle.net/10453/155018