構造物内部における荷重伝達経路の新たな表現方法

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  • Expression of Load Transfer Paths in Structures
  • コウゾウブツ ナイブ ニ オケル カジュウ デンタツ ケイロ ノ アラタ ナ ヒョウゲン ホウホウ

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A concept of a parameter U* has been introduced by the authors to express load transfer paths in a structure. In this paper, matrix formulation of internal stiffness shows that the value of U* expresses a degree of connection between a loading point and an internal arbitrary point. Stiffness fields, stiffness lines, and stiffness decay vectors are defined using newly introduced U* potential lines. A concept of a load path can be expressed as a stiffness line that has a minimum stiffness decay vector. A simple model structure is calculated using FEM for an application of U* analysis. The distribution of U* values shows that a diagonal member between a loading point and a support point Plays an important rold for the load transfer.

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