EXPERIMENTAL RESEARCH ON FLEXURAL BEHAVIOR OF REINFORCED CONCRETE BEAMS STRENGTHENED WITH NEAR SURFACE MOUNTED PRESTRESSED CFRP TENDONS

Xu Ping; Zeng Xiantao; Ding Yahong; Wang Xingguo

doi:10.13204/j.gyjz201203015

Volume 42 Issue 3

Dec. 2014

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Xu Ping, Zeng Xiantao, Ding Yahong, Wang Xingguo. EXPERIMENTAL RESEARCH ON FLEXURAL BEHAVIOR OF REINFORCED CONCRETE BEAMS STRENGTHENED WITH NEAR SURFACE MOUNTED PRESTRESSED CFRP TENDONS[J]. INDUSTRIAL CONSTRUCTION, 2012, 42(3): 71-75,55. doi: 10.13204/j.gyjz201203015

Citation:

Xu Ping, Zeng Xiantao, Ding Yahong, Wang Xingguo. EXPERIMENTAL RESEARCH ON FLEXURAL BEHAVIOR OF REINFORCED CONCRETE BEAMS STRENGTHENED WITH NEAR SURFACE MOUNTED PRESTRESSED CFRP TENDONS[J]. INDUSTRIAL CONSTRUCTION, 2012, 42(3): 71-75,55. doi: 10.13204/j.gyjz201203015

Citation:

Xu Ping, Zeng Xiantao, Ding Yahong, Wang Xingguo. EXPERIMENTAL RESEARCH ON FLEXURAL BEHAVIOR OF REINFORCED CONCRETE BEAMS STRENGTHENED WITH NEAR SURFACE MOUNTED PRESTRESSED CFRP TENDONS[J]. INDUSTRIAL CONSTRUCTION, 2012, 42(3): 71-75,55. doi: 10.13204/j.gyjz201203015

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EXPERIMENTAL RESEARCH ON FLEXURAL BEHAVIOR OF REINFORCED CONCRETE BEAMS STRENGTHENED WITH NEAR SURFACE MOUNTED PRESTRESSED CFRP TENDONS

doi: 10.13204/j.gyjz201203015

1.
School of Civil Engineering,Henan Polytechnic University,Jiaozuo 454003,China

Received Date: 2011-05-30
Publish Date: 2012-03-20

Abstract

Abstract

In order to make full use of the high-strength performance of CFRP tendons,the different prestress was applied to 7 mm diameter CFRP tendons put on to 20 mm20 mm grooves opened on the concrete surface of the tensile region of concrete beams.Flexural behavior of nine RC beams strengthened with prestressed near surface mounted CFRP tendons applied different levels of prestress and that of one unstrengthened RC beam were studied.In these tests,stiffness,characteristic load,crack development and ductility of test specimens were carried out.Experimental results show that the high-strength performance of CFRP is fully used,the stiffness of strengthened beams is risen notably,the maximal crack load is increased by 303.17%,the maximal ultimate load is increased by 237.92%,the ductility of beams can approximately meet the requirements of anti-earthquake design,and failure has three expressional forms.
- CFPR tendons,
- reinforcement,
- prestress,
- concrete beam

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References(16)

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