Fatigue resistance of reinforced concrete members for strengthening of shear with carbon fiber and PVA fiber to assume water penetration

DOI
  • Hayashi Kazuki
    日本大学大学院 工学研究科土木工学専攻博士前期課程
  • Iidoi Tsuyoshi
    株式会社復建技術コンサルタント構造技術部
  • Fujiyama Chikako
    横浜国立大学 大学院都市イノベーション研究院 都市イノベーション部門
  • Koda Yasuhiro
    日本大学 工学部土木工学科

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Other Title
  • 水の浸入を想定し炭素繊維とPVA繊維によりせん断補強した鉄筋コンクリート部材の耐疲労性

Abstract

<p>The fatigue resistance of RC decks subjected to water penetration is known to become significantly degraded. However, it has been found that the fatigue resistance can be improved by shear reinforcement using carbon fiber grids and PVA fibers in a cross-section of a singly reinforced concrete deck. Although a quantitative evaluation of the optimum amount of reinforcement has not yet been performed. In this study, the fatigue resistance was examined based on fatigue loading tests and a three-dimensional FEM analysis using beam specimens in order to evaluate the synergistic effect under fatigue action. The results indicated that both carbon and PVA fibers had a significant effect on fatigue resistance. Therefore, the fatigue resistance was verified by fatigue tests on RC decks.</p>

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