繰り返し外力を受ける構造物および部材の変形累積に関する法則

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タイトル別名
  • Law of accumulation for deformation of structures and members subjected to repeated loading
  • クリカエシ ガイリョク オ ウケル コウゾウブツ オヨビ ブザイ ノ ヘンケイ

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説明

This paper presents the hypothetical law of accumulation for the deformations of structures and members. The hypothesis states that the accumulation of the deformation of structures or members subjected to alternately repeated loading is convergent or divergent according to the values of the forces corresponding to the accumulated deformation and are independent of the strength deterioration. In order to verify the law, the convergent and divergent behavior of the accumulation of the following deformation is analyzed; 1) the curvature of rectangular box steel beam-columns which have degrading stress-strain relation and are subjected to alternately repeated and constant bending moments; 2) the vertical displacement of one-story, single-bay structures composed of braces and columns that are subjected to repeated horizontal forces. Based on the law of accumulation, the limits of the forces to be loaded against structures are also theoretically derived in order to maintain seismic safety.

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