Restoring force characteristics of braced frame with anchor-bolt-yield-type exposed column-base

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  • アンカーボルト降伏先行型露出柱脚付きブレース架構の復元力特性
  • アンカーボルト コウフク センコウガタ ロシュツ チュウ アシツキ ブレースカコウ ノ フクゲンリョク トクセイ

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Anchor-bolts of a column-base subjected to a bending moment are in a plastic region by rotational action of the base-plate. The column-base connected a brace member shows easy prediction of an elastic limit of the anchor-bolt because of linear relationship between the base-plate rotation and the story-displacement of the braced frame. The restoring force characteristics of the slip-type exposed column-base show an elastic stiffness decreasing due to a gap between the base-plate and the foundation. The non-slip-type exposed column-base shows simple restoring force characteristics without the complicated behavior of the slip-type column-base.

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