Book cover for FRPRCS-5: Fibre-reinforced plastics for reinforced concrete structures Volume 1: Proceedings of the fifth international conference on fibre-reinforced plastics for reinforced concrete structures, Cambridge, UK, 16–18 July 2001
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FRPRCS-5: Fibre-reinforced plastics for reinforced concrete structures Volume 1: Proceedings of the fifth international conference on fibre-reinforced plastics for reinforced concrete structures, Cambridge, UK, 16–18 July 2001
Edited by
Chris J. Burgoyne
Chris J. Burgoyne
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Author and Other Information
Emerald Publishing Limited
DOI:
https://doi.org/10.1680/frprcsv1.30299
ISBN print:
978-0-7277-3647-5
Publication date:
2001
Book Chapter

Failure behavior of flexural strengthened RC beams with AFRP Sheet

By
N. Kishi;
N. Kishi
1Muroran Inst. of Technology, Muroran, Japan
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H. Mikami;
H. Mikami
2TRI of Mitsui Construction Co., Ltd., Chiba, Japan
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K.G. Matsuoka;
K.G. Matsuoka
1Muroran Inst. of Technology, Muroran, Japan
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Y. Kurihashi
Y. Kurihashi
1Muroran Inst. of Technology, Muroran, Japan
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Author and Other Information
N. Kishi
1Muroran Inst. of Technology, Muroran, Japan
H. Mikami
2TRI of Mitsui Construction Co., Ltd., Chiba, Japan
K.G. Matsuoka
1Muroran Inst. of Technology, Muroran, Japan
Y. Kurihashi
1Muroran Inst. of Technology, Muroran, Japan
Doi:
https://doi.org/10.1680/frprcsv1.30299.0009
  • Published:
    2001

In this paper, in order to establish a rational flexural strengthening method for Reinforced Concrete (RC) members with Fiber Reinforced Plastic (FRP) sheet, static loading tests on RC beams strengthened with Aramid FRP (AFRP) sheet were conducted. Sixteen kinds of strengthened RC beams were used, in which following parameters were varied: rebar ratio (0.8, 1.2, and 1.8 %), shear span ratio (3.1, 4.0, 5.0, 6.0, and 6.9), and sheet volume ratio (1.0 and 2.0 %). The experiments revealed the following: 1) There are two failure modes (sheet debonding failure and flexural compressive failure), with the mode depending on the rebar yield length; 2) in both cases, the sheet finally debonds due to exfoliation of concrete on the lower cover concrete of the equi-shear span; and 3) strengthening design of flexural-failure-type RC beams can be performed within a margin of safety by using a fiber model.

  • INTRODUCTION

  • EXPERIMENTAL OVERVIEW

  • EXPERIMENTAL RESULTS

  • PREDICTION OF FAILURE TYPE

  • CONCLUSIONS

  • REFERENCES

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