EXPERIMENTAL STUDY ON LOCAL DAMAGE OF REINFORCED CONCRETE WALLS DUE TO TSUNAMI DEBRIS IMPACT

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  • NAKAMURA Satoshi
    Grad. Stud., Dept. of Environmental Science and Technology, Tokyo Institute of Technology.
  • WATANABE Hidekazu
    Assist. Prof., Structural Engineering Research Center, Tokyo Institute of Technology, Dr.Eng.
  • KONO Susumu
    Prof., Structural Engineering Research Center, Tokyo Institute of Technology, Ph.D.
  • FUJIKAKE Kazunori
    Prof., Dept. of Civil & Environmental Engineering, National Defense Academy, Dr.Eng.
  • TANAKA Hitoshi
    Prof., Disaster Prevention Research Institute, Kyoto University, Ph.D.
  • SUZUKI Norio
    Deputy Director, Kajima Technical Research Institute, Dr.Eng.
  • OBARA Taku
    Grad. Stud., Dept. of Environmental Science and Technology, Tokyo Institute of Technology.

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Other Title
  • 津波浮遊物の衝突を受けるRC壁の局部損傷評価に関する実験的研究
  • ツナミ フユウブツ ノ ショウトツ オ ウケル RCヘキ ノ キョクブ ソンショウ ヒョウカ ニ カンスル ジッケンテキ ケンキュウ

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Abstract

 The 2011 off the Pacific coast of Tohoku Earthquake triggered devastating tsunami which caused various structural damages to RC buildings. Impact tests were conducted using a lateral impact loading system to evaluate the performance of RC wall specimens. The damage of twenty RC wall specimens was classified into penetration, scabbing, and perforation. In order to evaluate the limit impact velocity for scabbing and perforation, the modified Hughes formula was proposed by assuming that tensile concrete strength is a constant value (1.76 N/mm2) regardless of the splitting tensile strength of accompanying cylindrical specimens. The proposed formula perfectly classified the local damage of twenty specimens in this study.

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