EXPERIMENTAL STUDY ON FLEXIONAL BEHAVIOR OF TIMBER BEAM STRENGTHENED WITH FRP

Shao Jinsong; Liu Weiqing; Jiang Tong; Jiang Jianqiang

doi:10.13204/j.gyjz2011205029

Volume 42 Issue 5

Dec. 2014

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Shao Jinsong, Liu Weiqing, Jiang Tong, Jiang Jianqiang. EXPERIMENTAL STUDY ON FLEXIONAL BEHAVIOR OF TIMBER BEAM STRENGTHENED WITH FRP[J]. INDUSTRIAL CONSTRUCTION, 2012, 42(5): 151-156. doi: 10.13204/j.gyjz2011205029

Citation:

Shao Jinsong, Liu Weiqing, Jiang Tong, Jiang Jianqiang. EXPERIMENTAL STUDY ON FLEXIONAL BEHAVIOR OF TIMBER BEAM STRENGTHENED WITH FRP[J]. INDUSTRIAL CONSTRUCTION, 2012, 42(5): 151-156. doi: 10.13204/j.gyjz2011205029

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EXPERIMENTAL STUDY ON FLEXIONAL BEHAVIOR OF TIMBER BEAM STRENGTHENED WITH FRP

doi: 10.13204/j.gyjz2011205029

1.
1. Nanjing University of Technology,Nanjing 210009,China;
2.
2. Jiangsu Saite Steel Structure Co.Ltd,Yixing 214214,China

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

Abstract

Abstract

The experimental investigation concerning the flexional behavior of 36 cylindrical wood beams reinforced with FRP sheets were conducted.The work mechanism and failure modes of the specimens were discussed in details. The parameters of the specimens were number,types and the location of FRP sheets.The effect of design parameters of the specimens on the carrying capacity and deflection of beams was analyzed.The results show that FRP in the tension zone of the wood beam can improve the capacity effectively.The capacity of wood beam is increased by 30. 61% with one layer sheet of CFRP in tension zone.The lateral FRP wound in the pure flexion zone can improve the behavior of the compression zone of wood beam,and increase its flexional capacity effectively.The increased extent is related with the number of FRP sheets.The failure of reinforced wood beam presents the folded fiber in the compressive zone and broken wood fiber in the tension zone.The effect of FRP in the compression zone on the bending capacity of timber beam is related to the strengthened forms.The reinforcement effect of the lateral FRP wound in the compression zone is the best,but little effect is found along the longitudinal FRP．
- FRP,
- strengthen,
- wood beam,
- ultimate load

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References(6)

References

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