ブレース付き露出柱脚のせん断補強に関する基礎的研究

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  • Basic study on rehabilitation of shearing force for exposed column-base in braced frame
  • ブレース ツキ ロシュツ チュウ キャク ノ センダン ホキョウ ニ カンスル キソテキ ケンキュウ

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In a rehabilitation of an existing steel structure, column bases are often treated as reinforced elements. This paper proposes a new reinforcement of the column base. In the reinforcement method, existing anchor bolts of the column base resist an axial force and a shearing resistant plate resists a shearing force. Experimental study on the new reinforcement of the column base was carried out. The following conclusions were obtained from the experimental results: 1) The shearing resistant plate resisted the shearing force of a brace, and anchor bolts resisted the tensile force; 2) Tensile stress of the anchor bolt reached an yield stress; 3) The existing anchor bolts can be designed as a tension member, and this reinforcement of the column base by the shearing resistant plate is effective.

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