シングルデッキ形浮屋根ポンツ-ンの弾性座屈下限値へのReduced Stiffness法の適用

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タイトル別名
  • Application of Reduced Stiffness Method to Lower Bound Elastic Buckling Load of Pontoons of Single Deck Floating Roofs
  • シングル デッキケイ ウキヤネ ポンツーン ノ ダンセイ ザクツ カゲンチ エノ Reduced Stiffnessホウ ノ テキヨウ

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抄録

The 2003 Tokachi-Oki earthquake caused severe damage to oil storage tanks due to liquid sloshing. Seven single-deck floating roofs had experienced structural problems as evidenced by sinking failure in large diameter tanks at the refinery in Tomakomai, Japan. The pontoons of the floating roofs might be buckled due to bending load during the sloshing. The initial geometrical imperfection may diminish the buckling load of the pontoon. This paper presents the lower bound buckling load of the pontoons based on the reduced stiffness method proposed by Croll and Yamada. The axisymmetric shell finite element method is used in the linear elastic bifurcation buckling analysis.

収録刊行物

  • 圧力技術

    圧力技術 47 (1), 18-28, 2009

    一般社団法人 日本高圧力技術協会

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