EXPERIMENTAL STUDY ON IMPROVEMENT OF FLEXURAL REINFORCEMENT BY CONTINUOUS FIBER SHEET FOR REINFORCED CONCRETE BEAM WITH CLADDING OF FIBER REINFORCED MORTAR

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  • KAKUNO Yoshinori
    Graduate Student, Graduate School of Science and Technology, Kumamoto University, M. Eng.
  • MURAKAMI Kiyoshi
    Prof., Graduate School of Science and Technology, Kumamoto University, Dr. Eng.
  • SHIMODA Seiya
    Assoc. Prof., Ariake National College of Technology, Dr. Eng.
  • TAKEDA Koji
    Assistant Prof., Graduate School of Science and Technology, Kumamoto University, Dr. Eng.

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Other Title
  • 高靭性繊維補強モルタルで断面積層補強を施した鉄筋コンクリート梁に対する連続繊維シートの曲げ補強効果の改善に関する実験的研究
  • コウジンセイ センイ ホキョウ モルタル デ ダンメン セキソウ ホキョウ オ ホドコシタ テッキン コンクリートハリ ニ タイスル レンゾク センイ シート ノ マゲ ホキョウ コウカ ノ カイゼン ニ カンスル ジッケンテキ ケンキュウ

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Abstract

In this study, analytical and experimental investigations were conducted to clarify the effect of clad reinforcement by polyethylene fiber reinforced mortar (PEFRM) on flexural characteristics of reinforced concrete (RC) beams strengthened with polyethylene fiber sheets. High-performance polyethylene fibers (PEF) were used for making the PEFRM with high tensile strength. The PEFRM-cladding was performed on the tensile side of the RC beam. The RC beams strengthened with the PEFRM-cladding and the sheets were tested under pure bending. As a result, it was shown that the PEFRM-cladding has a remarkable effect on an improvement of flexural reinforcement by the sheets of the RC beam.

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