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EMBEDDED JOINT STRUCTURE FOR ROAD BRIDGE AND CONSTRUCTION METHOD FOR THE EMBEDDED JOINT STRUCTURE
PROBLEM TO BE SOLVED: To provide an embedded joint structure suited for replacement of a load bearing-type expansion joint that is stopped performing intended functions due to rusting of a mobile bearing, etc.SOLUTION: An embedded joint structure for a road bridge includes: a pair of load bearing steel plates 10a, 10b installed parallel to each other as cantilevered beams on a surface of a bridge abutment and a bridge girder 1 or bridge girders with a joint S in between, the steel plates extending toward the joint; hole-in anchors 12a, 12b or stud bolts planted on both load bearing steel plates and integrated, for fitting and fixing the load bearing steel plates to the bridge abutment and the bridge girder 1 or the bridge girders; fixing nuts 13a, 13b fastened to screw head parts 14a, 14b, respectively, on the hole-in anchors or the stud bolts, for keeping the load bearing steel plates in a fall-off prevention state; and an asphalt pavement A covering over the embedded joint structure. The screw head parts and the fixing nuts are embedded entirely in a range of thickness of a base layer 16 of the asphalt pavement, and only a surface layer 17 of the asphalt pavement is connected to a surface layer of a ground cover part B.SELECTED DRAWING: Figure 14
【課題】可動支承の錆付きなどにより本来の機能が発揮されなくなった荷重支持型伸縮継手の取り替えにふさわしい埋設継手構造を提供する。【解決手段】継ぎ目Ｓを挟む橋台と橋桁１又は橋桁同士の表面へ、その継ぎ目に向かい張り出す片持ち梁として並列設置される一対の荷重支持鋼板１０ａ、１０ｂと、その両荷重支持鋼板を上記橋台と橋桁１又は橋桁同士へ取り付け固定すべく、その双方に各々植え付け一体化されたホールインアンカー１２ａ、１２ｂ又はスタッドボルトと、そのホールインアンカー又はスタッドボルトのネジ頭部１４ａ、１４ｂへ各々締結されて、上記荷重支持鋼板を各々抜け止め状態に保つ固定ナット１３ａ、１３ｂと、その上方から覆工されたアスファルト舗装Ａとを備え、上記ネジ頭部と固定ナットをそのアスファルト舗装における基層１６の厚み内へ悉く埋没させて、そのアスファルト舗装の表層１７だけを地覆部Ｂの表層と連続する。【選択図】図１４
EMBEDDED JOINT STRUCTURE FOR ROAD BRIDGE AND CONSTRUCTION METHOD FOR THE EMBEDDED JOINT STRUCTURE
PROBLEM TO BE SOLVED: To provide an embedded joint structure suited for replacement of a load bearing-type expansion joint that is stopped performing intended functions due to rusting of a mobile bearing, etc.SOLUTION: An embedded joint structure for a road bridge includes: a pair of load bearing steel plates 10a, 10b installed parallel to each other as cantilevered beams on a surface of a bridge abutment and a bridge girder 1 or bridge girders with a joint S in between, the steel plates extending toward the joint; hole-in anchors 12a, 12b or stud bolts planted on both load bearing steel plates and integrated, for fitting and fixing the load bearing steel plates to the bridge abutment and the bridge girder 1 or the bridge girders; fixing nuts 13a, 13b fastened to screw head parts 14a, 14b, respectively, on the hole-in anchors or the stud bolts, for keeping the load bearing steel plates in a fall-off prevention state; and an asphalt pavement A covering over the embedded joint structure. The screw head parts and the fixing nuts are embedded entirely in a range of thickness of a base layer 16 of the asphalt pavement, and only a surface layer 17 of the asphalt pavement is connected to a surface layer of a ground cover part B.SELECTED DRAWING: Figure 14
【課題】可動支承の錆付きなどにより本来の機能が発揮されなくなった荷重支持型伸縮継手の取り替えにふさわしい埋設継手構造を提供する。【解決手段】継ぎ目Ｓを挟む橋台と橋桁１又は橋桁同士の表面へ、その継ぎ目に向かい張り出す片持ち梁として並列設置される一対の荷重支持鋼板１０ａ、１０ｂと、その両荷重支持鋼板を上記橋台と橋桁１又は橋桁同士へ取り付け固定すべく、その双方に各々植え付け一体化されたホールインアンカー１２ａ、１２ｂ又はスタッドボルトと、そのホールインアンカー又はスタッドボルトのネジ頭部１４ａ、１４ｂへ各々締結されて、上記荷重支持鋼板を各々抜け止め状態に保つ固定ナット１３ａ、１３ｂと、その上方から覆工されたアスファルト舗装Ａとを備え、上記ネジ頭部と固定ナットをそのアスファルト舗装における基層１６の厚み内へ悉く埋没させて、そのアスファルト舗装の表層１７だけを地覆部Ｂの表層と連続する。【選択図】図１４
EMBEDDED JOINT STRUCTURE FOR ROAD BRIDGE AND CONSTRUCTION METHOD FOR THE EMBEDDED JOINT STRUCTURE
道路橋の埋設継手構造とその施工法
YAMAUCHI JUICHI (author) / YAMAUCHI JUNJI (author) / YAMAUCHI YOSHIO (author)
2016-03-22
Patent
Electronic Resource
Japanese
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