CLC number: U441.2
On-line Access: 2020-04-10
Received: 2019-12-04
Revision Accepted: 2020-03-23
Crosschecked: 2020-03-31
Cited: 0
Clicked: 3596
Citations: Bibtex RefMan EndNote GB/T7714
Qian Feng, Guan-nan Wang, Yong-ping Zhang, Rong-qiao Xu. Numerical simulation of partial-interaction load-deflection behavior of corroded reinforced concrete beams based on a segmental approach and evaluation of reinforcement corrosion level[J]. Journal of Zhejiang University Science A, 2020, 21(4): 280-293.
@article{title="Numerical simulation of partial-interaction load-deflection behavior of corroded reinforced concrete beams based on a segmental approach and evaluation of reinforcement corrosion level",
author="Qian Feng, Guan-nan Wang, Yong-ping Zhang, Rong-qiao Xu",
journal="Journal of Zhejiang University Science A",
volume="21",
number="4",
pages="280-293",
year="2020",
publisher="Zhejiang University Press & Springer",
doi="10.1631/jzus.A1900616"
}
%0 Journal Article
%T Numerical simulation of partial-interaction load-deflection behavior of corroded reinforced concrete beams based on a segmental approach and evaluation of reinforcement corrosion level
%A Qian Feng
%A Guan-nan Wang
%A Yong-ping Zhang
%A Rong-qiao Xu
%J Journal of Zhejiang University SCIENCE A
%V 21
%N 4
%P 280-293
%@ 1673-565X
%D 2020
%I Zhejiang University Press & Springer
%DOI 10.1631/jzus.A1900616
TY - JOUR
T1 - Numerical simulation of partial-interaction load-deflection behavior of corroded reinforced concrete beams based on a segmental approach and evaluation of reinforcement corrosion level
A1 - Qian Feng
A1 - Guan-nan Wang
A1 - Yong-ping Zhang
A1 - Rong-qiao Xu
J0 - Journal of Zhejiang University Science A
VL - 21
IS - 4
SP - 280
EP - 293
%@ 1673-565X
Y1 - 2020
PB - Zhejiang University Press & Springer
ER -
DOI - 10.1631/jzus.A1900616
Abstract: corrosion of reinforcement has a significant effect on the deformation of reinforced concrete beams by deteriorating the bond-slip characteristics, diminishing the cross-sectional area of reinforcement, and causing cracking. The traditional way of quantifying the load capacity and simulating deflection is the moment-curvature (M/χ) approach. The problem is that the M/χ approach is semi-empirical after cracking as it is strain-based and cannot allow for tension stiffening. This paper introduces the new displacement-based moment-rotation (M/θ) approach which directly simulates the development of cracks and hence allows for tension stiffening. This M/θ approach is then used to predict the load-deflection behavior of reinforced concrete beams with corrosion effect by incorporating the corrosion-affected bond-slip model. The bond-slip model only considers the corrosion effect but ignores the confinement effect. It is used here as an example to describe the procedure of how to quantify the corrosion effect on reinforced concrete beam behavior. The load-deflection curves obtained from the numerical simulation show a good agreement with test results. For reinforced concrete beams with confinement, the only difference is to replace the bond-slip model with the one which includes both corrosion and stirrup effects. Additionally, the paper shows how to use the M/θ approach with the bond-slip model to predict the real corrosion level of reinforcement in some tests in which only the theoretical corrosion levels are provided.
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