COOPERATION MECHANISM OF ANCHOR BOLT AND FRICTION-VIBRATION DAMPING DEVICE: Fid-Bau Portal

COOPERATION MECHANISM OF ANCHOR BOLT AND FRICTION-VIBRATION DAMPING DEVICE

HANZAWA SHIGEKAZU / HANZAWA KAZUO

To provide a cooperation mechanism of an anchor bolt and a friction-vibration damping device which dispenses with insertion of an anchor bolt into a friction-vibration damping device, has no restriction in an installation place, and has no limit of a behavior of the anchor bolt.SOLUTION: A cooperation mechanism has a nut with a round seat screwed in an anchor bolt and a through hole where the anchor bolt penetrates through a sill. The through hole has a first through hole and a second through hole in order from the surface of the sill. A diameter of the second through hole is larger than a diameter of the first through hole, and a length of the first through hole is longer than a long nut part of the nut with a round seat. A friction-vibration damping device has a first slipping flat plate which is positioned in the upper stage and comes in contact with the sill, and a second slipping flat plate which is positioned in the lower stage and comes in contact with the foundation. A surface where the first slipping flat plate and the second slipping flat plate overlap each other is smooth, and the anchor bolt fixed with the nut with a round seat and the friction-vibration damping device are cooperated with each other and resist earthquake.SELECTED DRAWING: Figure 1

【課題】摩擦減震装置にアンカーボルトを挿入する必要がなく、設置箇所の制約がなく、アンカーボルトの挙動に制限が加えられることのないアンカーボルト及び摩擦減震装置の協働機構を提供する。【解決手段】協働機構は、アンカーボルトに螺入する丸座付きナットと、アンカーボルトが土台を貫通する貫通孔と、を有し、貫通孔は、土台の表面から順に第１の貫通孔及び第２の貫通孔を有し、第２の貫通孔の直径は、第１の貫通孔の直径より大きく、第１の貫通孔の長さは、丸座付きナットの長ナット部より長く、摩擦減震装置は、上段に位置し土台に接触する第１の滑り平板と、下段に位置し基礎に接触する第２の滑り平板と、を有し、第１の滑り平板及び第２の滑り平板が重ね合わされる面は平滑であり、丸座付きナットで固定されたアンカーボルト及び摩擦減震装置が協働して地震に対抗する。【選択図】図１

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