多数配列アンカーボルトを有するスリップ型露出柱脚の復元力特性

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  • Restoring Force Characteristics of Slip-Type Exposed Column Base with Multi-Rows of Anchor Bolts
  • タスウ ハイレツ アンカーボルト オ ユウスル スリップガタ ロシュツ チュウ キャク ノ フクゲンリョク トクセイ

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An anchor-bolt-yield-type exposed column base is generally used in steel buildings. The column base shows slip-type restoring force characteristics, that are of great advantage to residual deformation of the frames subjected to an earthquake. The cyclic behavior of the column base with multi-rows of anchor bolts has not been studied for reasons of complicated manipulations. In this paper, experiments on the column bases with multi-rows of anchor bolts were carried out and the experimental results were compared with analytical models. The following conclusions were drawn. 1) Whole types of the column bases show the slip-type restoring force characteristics. 2) The column bases with multi-rows of the anchor bolts show complicated behavior, especially, with the anchor bolts at a centroid of cross section of the column.

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