繰返し荷重をうける鉄骨断面の弾塑性解析に関する研究 (第 3 報) : Beam Column の漸増塑性限界荷重について

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タイトル別名
  • RESEACH ON THE ELASTO-PLASTIC ANALYSIS OF STEEL SECTION SUBJECTED TO ALTERNATIVE LOAD (Part III)
  • 繰返し荷重をうける鉄骨断面の弾塑性解析に関する研究-3-Beam columnの漸増塑性限界荷重について
  • クリカエシ カジュウ オ ウケル テッコツ ダンメン ノ ダン ソセイ カイセキ ニ カンスル ケンキュウ 3 Beam column ノ ゼンゾウ ソセイ ゲンカイ カジュウ ニ ツイテ

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説明

This paper is study of unstability of beam column. The change of bending curvature of steel section under axial load and alternative bending morment when the morment is less than incremental collapse morment that show privious study, are shaking down but when over that, changing curve draw steady roop, in this case the strain are increasing by reversing morment. When we discuss on the unstability of beam column under reversed load, must consider two point, the one is maximam load carrying capacity, the next is shake down load or incremental collapse load. On this point, we discussed in this paper unstability of cantilever type of beam-column. rectanguler section and H section, subjected to axial load and alternative lateral force on top of column, and conclusion are, when the slenderness ratio (λ) of column is small, the critical load of unstability is not maximam carrying capacity but incremental collapse load.

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