An experimental study on local damage of reinforced concrete panels due to impact of soft missiles

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  • Ohta Yoshimi
    原子力規制庁長官官房技術基盤グループ
  • Takahashi Chiaki
    パシフィックコンサルタンツ株式会社 交通基盤事業本部インフラマネジメント部
  • Cai Fei
    群馬大学大学院 理工学府環境創生部門
  • Suzuki Tetsuo
    原子力規制庁長官官房技術基盤グループ

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  • 柔飛翔体の衝突による鉄筋コンクリート板の局部損傷評価に関する実験的研究
  • ジュウヒショウタイ ノ ショウトツ ニ ヨル テッキン コンクリートバン 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

<p>Some empirical and semi-empirical formulae are used to evaluate the damage of concrete targets struck normally by missiles. For soft and deformable projectiles the empirical and semi-empirical formulae are multiplied by a flexibility factor to evaluate the damage. In this study we conducted experiments on reinforced concrete slabs struck by rigid and soft projectiles and analyzed the damage of the reinforced concrete slabs under impact loading. The buckling energy absorbed by the deformation of the soft body was calculated to obtain the flexibility factor and then applied it to the empirical and semi-empirical formulae for rigid projectiles. In addition, the experimental results were also compared with the formulae based on the dimensionless energy index.</p>

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