EXPERIMENTAL STUDY ON CONSTRUCTION PROCESS AND BENDING CAPACITY OF DAMAGED RC BEAM STRENGTHENED BY COMPOSITE CFRP SHEETS

Chu Yunpeng; Yao Yong; Deng Yongjun; Xia Xiaoning; Chen Daiguo

doi:10.13204/j.gyjz201204016

Volume 42 Issue 4

Dec. 2014

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Liang Peixin, Guo Zhengxing. STUDY ON SEISMIC BEHAVIOR MODELING AND KEY PARAMETERS OF THE UNSYMMETRICAL HYBRID CONNECTIONS[J]. INDUSTRIAL CONSTRUCTION, 2011, 41(4): 21-25,132. doi: 10.13204/j.gyjz201104005

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Chu Yunpeng, Yao Yong, Deng Yongjun, Xia Xiaoning, Chen Daiguo. EXPERIMENTAL STUDY ON CONSTRUCTION PROCESS AND BENDING CAPACITY OF DAMAGED RC BEAM STRENGTHENED BY COMPOSITE CFRP SHEETS[J]. INDUSTRIAL CONSTRUCTION, 2012, 42(4): 73-77. doi: 10.13204/j.gyjz201204016

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EXPERIMENTAL STUDY ON CONSTRUCTION PROCESS AND BENDING CAPACITY OF DAMAGED RC BEAM STRENGTHENED BY COMPOSITE CFRP SHEETS

doi: 10.13204/j.gyjz201204016

1.
Collage of Civil Engineering and Architecture,Southwest University of Science and Technology,Mianyang 621010,China

Received Date: 2011-12-20
Publish Date: 2012-04-20

Abstract

Abstract

The experimental study on flexural capacity of strengthened RC beams about C13,which were detached from the damaged building of Wenchuan earthquake was carried out,then loading to the same damage. There were 22 RC test beams adopting 8 kinds of strengthened methods by composite CFRP sheets under monotonic loading,it was investigated strength,stiffness,ductility,crack and strain changes of the beams. Results showed that: 1) The ultimate bearing capacity of reinforcement compound solutions of automatic glue pouring,replacement concrete after picked slot,implanting steels and pasting CFRP was much higher than direct pasting CFRP; cracking load and ductility was improved evidently. 2) The maximum stress of CFRP on which reinforcement compound solutions was bigger than direct pasting,the high-strength effect of CFRP was used very well,interoperability between new and old concrete was strong,which could play a good role in high-strength CFRP. 3) For the beam strengthened with the compound technology,raising the amount of CFRP could further improve the stress of steel, and effectively improve the cracking load and limit load of beam.
- damaged RC beam,
- CFRP sheets strengthening,
- bending capacity,
- ductility,
- failure mode

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References(10)

References

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