A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
EARTHQUAKE STRENGTHENING STRUCTURE OF BRIDGE PIER
PROBLEM TO BE SOLVED: To provide an earthquake strengthening structure of a bridge pier, which can increase toughness by exerting a restraining effect on a bridge pier column, even without providing a clearance between a steel plate and a footing.SOLUTION: In an earthquake strengthening structure, a steel plate is installed on the outer periphery of a rectangular cross-section bridge pier column 3 constructed on a footing 2. A corrugated steel plate 4 is installed in at least a plastic hinge area Lp of the bridge pier column 3 in such a manner that a peak 4a and a valley 4b of a corrugation are directed in a horizontal direction. The corrugated steel plate 4 is installed as a unit 10 in which a flange is vertically fixed to both horizontal ends thereof.
【課題】鋼板とフーチングとの間に隙間を設けなくとも橋脚柱に対する拘束効果を発揮させ、じん性の向上を図ることことができる、橋脚の耐震補強構造を提供する。【解決手段】フーチング２上に築造された矩形断面を有する橋脚柱３の外周に、鋼板を設置する耐震補強構造であって、橋脚柱３の少なくとも塑性ヒンジ領域Ｌpには、波の山４ａ及び谷４ｂが水平方向となるように、波形鋼板４を設置する。波形鋼板４は、その水平方向両端部にフランジが鉛直方向に固定されたユニット１０として設置される。【選択図】図１
EARTHQUAKE STRENGTHENING STRUCTURE OF BRIDGE PIER
PROBLEM TO BE SOLVED: To provide an earthquake strengthening structure of a bridge pier, which can increase toughness by exerting a restraining effect on a bridge pier column, even without providing a clearance between a steel plate and a footing.SOLUTION: In an earthquake strengthening structure, a steel plate is installed on the outer periphery of a rectangular cross-section bridge pier column 3 constructed on a footing 2. A corrugated steel plate 4 is installed in at least a plastic hinge area Lp of the bridge pier column 3 in such a manner that a peak 4a and a valley 4b of a corrugation are directed in a horizontal direction. The corrugated steel plate 4 is installed as a unit 10 in which a flange is vertically fixed to both horizontal ends thereof.
【課題】鋼板とフーチングとの間に隙間を設けなくとも橋脚柱に対する拘束効果を発揮させ、じん性の向上を図ることことができる、橋脚の耐震補強構造を提供する。【解決手段】フーチング２上に築造された矩形断面を有する橋脚柱３の外周に、鋼板を設置する耐震補強構造であって、橋脚柱３の少なくとも塑性ヒンジ領域Ｌpには、波の山４ａ及び谷４ｂが水平方向となるように、波形鋼板４を設置する。波形鋼板４は、その水平方向両端部にフランジが鉛直方向に固定されたユニット１０として設置される。【選択図】図１
EARTHQUAKE STRENGTHENING STRUCTURE OF BRIDGE PIER
橋脚の耐震補強構造
SUMIYA TSUTOMU (author)
2015-11-16
Patent
Electronic Resource
Japanese
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