A new approach to modeling tension stiffening in reinforced concrete

Murray, A; Gilbert, RI; Castel, A

A new approach to modeling tension stiffening in reinforced concrete

Murray, A Gilbert, RI Castel, A

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Publisher:: AMER CONCRETE INST
Publication Type:: Journal Article
Citation:: ACI Structural Journal, 2018, 115, (1), pp. 127-137
Issue Date:: 2018-01-01

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Field	Value	Language
dc.contributor.author	Murray, A
dc.contributor.author	Gilbert, RI
dc.contributor.author	Castel, A https://orcid.org/0000-0003-1619-9643
dc.date.accessioned	2022-08-27T04:30:03Z
dc.date.available	2022-08-27T04:30:03Z
dc.date.issued	2018-01-01
dc.identifier.citation	ACI Structural Journal, 2018, 115, (1), pp. 127-137
dc.identifier.issn	0889-3241
dc.identifier.issn	1944-7361
dc.identifier.uri	http://hdl.handle.net/10453/160922
dc.description.abstract	A novel approach to the modeling of tension stiffening is proposed based on considerations of the highly non-uniform strain regions that occur in the concrete surrounding embedded reinforcement bars near the primary cracks. A finite element study is undertaken to determine the effect of these disturbed regions on the overall deformation of reinforced concrete tension members. Simple hand calculations are presented to determine an effective cross-sectional area of concrete, which describes the overall contribution to axial rigidity of the cracked concrete for the ideal case of perfect bond. A scalar damage parameter is then introduced to account for the additional reduction in the tension stiffening effect caused by deterioration of bond at the reinforcement-concrete interface. Experimental tension stiffening studies in the literature (including a recent study by the authors) are used to calibrate the evolution of interface damage according to factors such as applied loading and shrinkage.
dc.language	English
dc.publisher	AMER CONCRETE INST
dc.relation.ispartof	ACI Structural Journal
dc.relation.isbasedon	10.14359/51700952
dc.rights	info:eu-repo/semantics/closedAccess
dc.subject	0905 Civil Engineering, 1202 Building
dc.subject.classification	Civil Engineering
dc.title	A new approach to modeling tension stiffening in reinforced concrete
dc.type	Journal Article
utslib.citation.volume	115
utslib.for	0905 Civil Engineering
utslib.for	1202 Building
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	*
dc.date.updated	2022-08-27T04:30:01Z
pubs.issue	1
pubs.publication-status	Published
pubs.volume	115
utslib.citation.issue	1

Abstract:

A novel approach to the modeling of tension stiffening is proposed based on considerations of the highly non-uniform strain regions that occur in the concrete surrounding embedded reinforcement bars near the primary cracks. A finite element study is undertaken to determine the effect of these disturbed regions on the overall deformation of reinforced concrete tension members. Simple hand calculations are presented to determine an effective cross-sectional area of concrete, which describes the overall contribution to axial rigidity of the cracked concrete for the ideal case of perfect bond. A scalar damage parameter is then introduced to account for the additional reduction in the tension stiffening effect caused by deterioration of bond at the reinforcement-concrete interface. Experimental tension stiffening studies in the literature (including a recent study by the authors) are used to calibrate the evolution of interface damage according to factors such as applied loading and shrinkage.

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http://hdl.handle.net/10453/160922