Cyclic flexural behavior of thickness-reduced steel pipe repaired by welded patch plate

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  • 古西 和夫
    名古屋大学大学院工学研究科社会基盤工学専攻 東洋技研コンサルタント株式会社名古屋支社
  • 北根 安雄
    名古屋大学大学院工学研究科社会基盤工学専攻
  • 渡邊 尚彦
    岐阜工業高等専門学校
  • 伊藤 義人
    名古屋大学大学院工学研究科社会基盤工学専攻

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Other Title
  • 添接板補修された断面欠損鋼管の繰返し曲げ挙動に関する研究

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Description

This paper presents a study on cyclic flexural behavior of thickness-reduced steel pipe repaired by welded patch plates. In this study, cyclic flexural tests of repaired pipes are performed, and the experimental results are compared with finite element (FE) analyses. In FE analyses, several combinations of patch plate thickness and reduced pipe thickness are modeled. From numerical results, the buckling behavior of thickness-reduced steel pipe repaired by patch plate is explained. It is shown that a required thickness of patch plate is larger than the thickness reduction to achieve the same level of ductility performance in the repaired pipe.

Journal

  • Kou kouzou rombunshuu

    Kou kouzou rombunshuu 18 (72), 72_1-72_16, 2011

    Japanese Society of Steel Construction

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