Predicting the bond between concrete and reinforcing steel at elevated temperatures

Aslani, F; Samali, B

Predicting the bond between concrete and reinforcing steel at elevated temperatures

Aslani, F Samali, B

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Publication Type:: Journal Article
Citation:: Structural Engineering and Mechanics, 2013, 48 (5), pp. 643 - 660
Issue Date:: 2013-12-10

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Field	Value	Language
dc.contributor.author	Aslani, F	en_US
dc.contributor.author	Samali, B https://orcid.org/0000-0002-3426-7745	en_US
dc.date.issued	2013-12-10	en_US
dc.identifier.citation	Structural Engineering and Mechanics, 2013, 48 (5), pp. 643 - 660	en_US
dc.identifier.issn	1225-4568	en_US
dc.identifier.uri	http://hdl.handle.net/10453/26688
dc.description.abstract	Reinforced concrete structures are vulnerable to high temperature conditions such as those during a fire. At elevated temperatures, the mechanical properties of concrete and reinforcing steel as well as the bond between steel rebar and concrete may significantly deteriorate. The changes in the bonding behavior may influence the flexibility or the moment capacity of the reinforced concrete structures. The bond strength degradation is required for structural design of fire safety and structural repair after fire. However, the investigation of bonding between rebar and concrete at elevated temperatures is quite difficult in practice. In this study, bond constitutive relationships are developed for normal and high-strength concrete (NSC and HSC) subjected to fire, with the intention of providing efficient modeling and to specify the fire-performance criteria for concrete structures exposed to fire. They are developed for the following purposes at high temperatures: normal and high compressive strength with different type of aggregates, bond strength with different types of embedment length and cooling regimes, bond strength versus to compressive strength with different types of embedment length, and bond stress-slip curve. The proposed relationships at elevated temperature are compared with experimental results. Copyright © 2013 Techno-Press, Ltd.	en_US
dc.relation.ispartof	Structural Engineering and Mechanics	en_US
dc.relation.isbasedon	10.12989/sem.2013.48.5.643	en_US
dc.subject.classification	Civil Engineering	en_US
dc.title	Predicting the bond between concrete and reinforcing steel at elevated temperatures	en_US
dc.type	Journal Article
utslib.citation.volume	5	en_US
utslib.citation.volume	48	en_US
utslib.for	0905 Civil Engineering	en_US
utslib.for	0913 Mechanical 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	open_access
pubs.issue	5	en_US
pubs.publication-status	Published	en_US
pubs.volume	48	en_US

Abstract:

Reinforced concrete structures are vulnerable to high temperature conditions such as those during a fire. At elevated temperatures, the mechanical properties of concrete and reinforcing steel as well as the bond between steel rebar and concrete may significantly deteriorate. The changes in the bonding behavior may influence the flexibility or the moment capacity of the reinforced concrete structures. The bond strength degradation is required for structural design of fire safety and structural repair after fire. However, the investigation of bonding between rebar and concrete at elevated temperatures is quite difficult in practice. In this study, bond constitutive relationships are developed for normal and high-strength concrete (NSC and HSC) subjected to fire, with the intention of providing efficient modeling and to specify the fire-performance criteria for concrete structures exposed to fire. They are developed for the following purposes at high temperatures: normal and high compressive strength with different type of aggregates, bond strength with different types of embedment length and cooling regimes, bond strength versus to compressive strength with different types of embedment length, and bond stress-slip curve. The proposed relationships at elevated temperature are compared with experimental results. Copyright © 2013 Techno-Press, Ltd.

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http://hdl.handle.net/10453/26688