THE ANALYSIS OF FLEXURAL BEHAVIOR OF CORRODED RC BEAMS STRENGTHENED WITH CFRP UNDER FATIGUE LOADS

Ge Ruodong; Liang Jinxiu; Wang Lei

doi:10.13204/j.gyjz201206016

Volume 42 Issue 6

Dec. 2014

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Ge Ruodong, Liang Jinxiu, Wang Lei. THE ANALYSIS OF FLEXURAL BEHAVIOR OF CORRODED RC BEAMS STRENGTHENED WITH CFRP UNDER FATIGUE LOADS[J]. INDUSTRIAL CONSTRUCTION, 2012, 42(6): 72-76. doi: 10.13204/j.gyjz201206016

Citation:

Ge Ruodong, Liang Jinxiu, Wang Lei. THE ANALYSIS OF FLEXURAL BEHAVIOR OF CORRODED RC BEAMS STRENGTHENED WITH CFRP UNDER FATIGUE LOADS[J]. INDUSTRIAL CONSTRUCTION, 2012, 42(6): 72-76. doi: 10.13204/j.gyjz201206016

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THE ANALYSIS OF FLEXURAL BEHAVIOR OF CORRODED RC BEAMS STRENGTHENED WITH CFRP UNDER FATIGUE LOADS

doi: 10.13204/j.gyjz201206016

1.
1. College of Civil Engineering &Architecture,Guangxi University,Nanning 530004,China;
2.
2. Department of Civil Engineering,Guilin University of Technology,Guilin 541004,China

Received Date: 2011-11-11
Publish Date: 2012-06-20

Abstract

Abstract

Eight RC beams including four CFRP strengthened beams were tested after short-term fatigue. Thedistortion, stress distribution, ultimate load of corroded reinforced concrete beams were investigated. Both theexperimental and analytical results indicated that fatigue loading had a significant impact on the performance ofcorroded RC beams; It could reduce the ultimate strength and ductility of the beams substantially. The ultimate loadcarrying capacity of the CFRP-strengthened corroded beams are enhanced evidently and had a preferable ductilityduring damage. The loading capacity of RC beams with CFRP strengthened was in creased by 22% to 47 %. The Uwrap CFRP sheet had an obvious effect on beams, the potential delamination of the concrete cover following steelcorrosion could cause sudden failure of RC beams strengthened with CFRP at later loading stages. Repairing a lowcorrosion rate beams by CFRP still had good mechanical properties after a short-term fatigue loadings.
- carbon fiber,
- fatigue load,
- reinforced concrete beam,
- corrosion

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References(11)

References

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