CLC number: TU375.5
On-line Access:
Received: 2000-07-06
Revision Accepted: 2001-01-02
Crosschecked: 0000-00-00
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JIN Wei-liang, ZHAO Yu-xi. EFFECT OF CORROSION ON BOND BEHAVIOR AND BENDING STRENGTH OF REINFORCED CONCRETE BEAMS[J]. Journal of Zhejiang University Science A, 2001, 2(3): 298-308.
@article{title="EFFECT OF CORROSION ON BOND BEHAVIOR AND BENDING STRENGTH OF REINFORCED CONCRETE BEAMS",
author="JIN Wei-liang, ZHAO Yu-xi",
journal="Journal of Zhejiang University Science A",
volume="2",
number="3",
pages="298-308",
year="2001",
publisher="Zhejiang University Press & Springer",
doi="10.1631/jzus.2001.0298"
}
%0 Journal Article
%T EFFECT OF CORROSION ON BOND BEHAVIOR AND BENDING STRENGTH OF REINFORCED CONCRETE BEAMS
%A JIN Wei-liang
%A ZHAO Yu-xi
%J Journal of Zhejiang University SCIENCE A
%V 2
%N 3
%P 298-308
%@ 1869-1951
%D 2001
%I Zhejiang University Press & Springer
%DOI 10.1631/jzus.2001.0298
TY - JOUR
T1 - EFFECT OF CORROSION ON BOND BEHAVIOR AND BENDING STRENGTH OF REINFORCED CONCRETE BEAMS
A1 - JIN Wei-liang
A1 - ZHAO Yu-xi
J0 - Journal of Zhejiang University Science A
VL - 2
IS - 3
SP - 298
EP - 308
%@ 1869-1951
Y1 - 2001
PB - Zhejiang University Press & Springer
ER -
DOI - 10.1631/jzus.2001.0298
Abstract: There is growing concern for corrosion damage in reinforced concrete structures with several decades' service. Pullout tests and beam tests were carried out to study the effect of reinforcement corrosion on the bond behavior and bending strength of reinforced concrete beams. The bond strength of plain bars and concrete initially increases with increasing corrosion, then declines. The turning point depends on the cracking of the concrete cover. The bond strength of deformed bars and concrete increases with corrosion up to a certain amount, but with progressive increase in corrosion, the bond strength decreases, and the cracking of the concrete cover seems to have no effect on the bond strength. On the basis of test data, the bond strength coefficient recommended here, which, together with the bond strength of uncorroded steel bars and concrete, can be used to easily calculate the bond strength of corroded steel bars and concrete. The bond strength coefficient proposed in this paper can be used to study the bond stress-slip relationship of corroded steel bars and concrete. The bending strength of corroded reinforced concrete beams declines with increasing reinforcement corrosion. Decreased bending strength of corroded RC beam is due to reduction in steel bar cross section, reduction of yield strength of steel bar, and reduction of bond capacity between steel bar and concrete.
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