EXPERIMENTAL RESEARCH ON FATIGUE PERFORMANCE OF DAMAGED BEAMS STRENGTHENED WITH PRESTRESSED CFRP SHEETS

Xu Chunlin; Ai Jun; Chen Bin; Lin Shen; Lu Yaoqing

doi:10.13204/j.gyjz201107028

Volume 41 Issue 7

Dec. 2014

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Xu Chunlin, Ai Jun, Chen Bin, Lin Shen, Lu Yaoqing. EXPERIMENTAL RESEARCH ON FATIGUE PERFORMANCE OF DAMAGED BEAMS STRENGTHENED WITH PRESTRESSED CFRP SHEETS[J]. INDUSTRIAL CONSTRUCTION, 2011, 41(7): 129-132. doi: 10.13204/j.gyjz201107028

Citation:

Xu Chunlin, Ai Jun, Chen Bin, Lin Shen, Lu Yaoqing. EXPERIMENTAL RESEARCH ON FATIGUE PERFORMANCE OF DAMAGED BEAMS STRENGTHENED WITH PRESTRESSED CFRP SHEETS[J]. INDUSTRIAL CONSTRUCTION, 2011, 41(7): 129-132. doi: 10.13204/j.gyjz201107028

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EXPERIMENTAL RESEARCH ON FATIGUE PERFORMANCE OF DAMAGED BEAMS STRENGTHENED WITH PRESTRESSED CFRP SHEETS

doi: 10.13204/j.gyjz201107028

1.
1. Department of Civil Engineering,Nanjing University of Aeronautics and Astronautics,Nanjing 210016,China;
2.
2. Zhejiang Jinhua-Quzhou Expressway Co.Ltd,Hangzhou 310004,China

Received Date: 2010-10-15
Publish Date: 2011-07-20

Abstract

Abstract

Experimental research on fatigue performance of damage beams strengthened with prestressed CFRP sheets is seldom.Based on lever principle,a new loading system for fatigue experiments has been designed.And the tension and anchorage devices were perfected.Three beams,which are presplitted identically,strengthened with CFRP sheets under different pre-stress levels were tested under fatigue load.Results show that the application of prestressing force can restrict cracks propagation,improve the rigidity,reduce the strain of the reinforcement and CFRP,thus the fatigue life of the strengthened beams are increased apparently.Meanwhile,the more the pre-stress level increases,the more the fatigue performance of the strengthened beams improved.
- prestressed CFRP sheet,
- damaged beam,
- strengthen,
- fatigue performance,
- loading system for fatigue experiments

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References(7)

References

[2] 田安国.预应力 FRP 加固混凝土受弯构件试验及设计理论研究[D].南京;东南大学,2006.

姚允武,李春良,程永春.碳纤维布加固混凝土结构疲劳特性试验研究[J].工程力学,2008,25(8);200-204.

[3] Heffernan P J.Fatigue Behaviour of Reinforced Concrete Beams Strengthened with CFRP Laminates[D]. Royal Military College of Canada Kingston,1997.

[4] 刘沐宇,李开兵.碳纤维布加固混凝土梁的疲劳性能试验研究[J].土木工程学报,2005,38(9);32-36.

[5] El-Hacha R, Wight G R, Heffernan P J, et al. Prestressed CFRP Sheets for Strengthening Reinforced Concrete Structures in Fatigue[C]//Pro of the 6 th International Conference on Fibre-Reinforced Plastics for Reinforced Concrete Structures (FRPRCS-6). Singapore;2003;895-904.

[6] Chen Shi. Static and Fatigue Behaviour of Prestressed Concrete Beams Strengthened with Prestressed CFRP Sheets[D]. Kinston, Ontario, Canada; Queen s University,2003.

[7] 张轲,叶列平,邱清瑞.预应力 CFRP 布加固混凝土梁弯曲疲劳性能试验研究[J].工业建筑,2005,35(9);13-19.

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