Influence of steel–concrete bond damage on the dynamic stiffness of cracked reinforced concrete beams

Xu, T; Huang, J; Castel, A; Zhao, R; Yang, C

Influence of steel–concrete bond damage on the dynamic stiffness of cracked reinforced concrete beams

Xu, T Huang, J Castel, A

Zhao, R Yang, C

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Publisher:: SAGE PUBLICATIONS INC
Publication Type:: Journal Article
Citation:: Advances in Structural Engineering, 2018, 21, (13), pp. 1977-1989
Issue Date:: 2018-10-01

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Field	Value	Language
dc.contributor.author	Xu, T
dc.contributor.author	Huang, J
dc.contributor.author	Castel, A https://orcid.org/0000-0003-1619-9643
dc.contributor.author	Zhao, R
dc.contributor.author	Yang, C
dc.date.accessioned	2022-08-27T04:24:39Z
dc.date.available	2022-08-27T04:24:39Z
dc.date.issued	2018-10-01
dc.identifier.citation	Advances in Structural Engineering, 2018, 21, (13), pp. 1977-1989
dc.identifier.issn	1369-4332
dc.identifier.issn	2048-4011
dc.identifier.uri	http://hdl.handle.net/10453/160920
dc.description.abstract	In this article, experiments focusing at the influence of steel–concrete bond damage on the dynamic stiffness of cracked reinforced concrete beams are reported. In these experiments, the bond between concrete and reinforcing bar was damaged using appreciate flexural loads. The static stiffness of cracked reinforced concrete beam was assessed using the measured load–deflection response under cycles of loading and unloading, and the dynamic stiffness was analyzed using the measured natural frequencies with and without sustained loading. Average moment of inertia model (Castel et al. model) for cracked reinforced beams by taking into account the respective effect of bending cracks (primary cracks) and the steel–concrete bond damage (interfacial microcracks) was adopted to calculate the static load–deflection response and the natural frequencies of the tested beams. The experimental results and the comparison between measured and calculated natural frequencies show that localized steel–concrete bond damage does not influence remarkably the dynamic stiffness and the natural frequencies both with and without sustained loading applied. Castel et al. model can be used to calculate the dynamic stiffness of cracked reinforced concrete beam by neglecting the effect of interfacial microcracks.
dc.language	English
dc.publisher	SAGE PUBLICATIONS INC
dc.relation	http://purl.org/au-research/grants/arc/DP140100529
dc.relation.ispartof	Advances in Structural Engineering
dc.relation.isbasedon	10.1177/1369433218761140
dc.rights	info:eu-repo/semantics/closedAccess
dc.subject	0905 Civil Engineering, 1202 Building
dc.subject.classification	Civil Engineering
dc.title	Influence of steel–concrete bond damage on the dynamic stiffness of cracked reinforced concrete beams
dc.type	Journal Article
utslib.citation.volume	21
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	2022-08-27T04:24:37Z
pubs.issue	13
pubs.publication-status	Published
pubs.volume	21
utslib.citation.issue	13

Abstract:

In this article, experiments focusing at the influence of steel–concrete bond damage on the dynamic stiffness of cracked reinforced concrete beams are reported. In these experiments, the bond between concrete and reinforcing bar was damaged using appreciate flexural loads. The static stiffness of cracked reinforced concrete beam was assessed using the measured load–deflection response under cycles of loading and unloading, and the dynamic stiffness was analyzed using the measured natural frequencies with and without sustained loading. Average moment of inertia model (Castel et al. model) for cracked reinforced beams by taking into account the respective effect of bending cracks (primary cracks) and the steel–concrete bond damage (interfacial microcracks) was adopted to calculate the static load–deflection response and the natural frequencies of the tested beams. The experimental results and the comparison between measured and calculated natural frequencies show that localized steel–concrete bond damage does not influence remarkably the dynamic stiffness and the natural frequencies both with and without sustained loading applied. Castel et al. model can be used to calculate the dynamic stiffness of cracked reinforced concrete beam by neglecting the effect of interfacial microcracks.

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http://hdl.handle.net/10453/160920