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PRECAST FLOOR SLAB JOINT STRUCTURE AND METHOD FOR JOINING PRECAST FLOOR SLAB JOINT
To provide a precast floor slab joint structure and a joining method of the precast floor slab joint capable of reducing the thickness of the floor slab, enhancing on-site processability, and enhancing the workability of reinforcing bars in the transverse direction.SOLUTION: A precast floor slab joint structure includes a plurality of pairs of upper reinforcement joints 11 and lower reinforcement joints 12 extending from a precast floor slab 1 in a bridge axis direction and arranged at intervals in a height direction, a plurality of U-shaped reinforcement bars 14 bound to tip sides of the opposed upper reinforcement joints 11 and lower reinforcement joints 12 and having convex tip sides, and a plurality of bridge-axis-orthogonal reinforcement bars 15 extending in a bridge-axis-orthogonal direction and bound to the upper reinforcement joints 11 and the lower reinforcement joints 12; each end of the upper reinforcement joint 11 and the lower reinforcement joint 12 is bent toward the lower reinforcement joint 12 and the upper reinforcement joint 11, respectively, and a width W of a gap 13 of each endmost part of the bent upper reinforcement joint 11 and the lower reinforcement joint 12 is set to be equal to or larger than the diameter of the bridge-axis-orthogonal reinforcement bars 15.SELECTED DRAWING: Figure 2
【課題】床版厚さの薄型化および現場加工性を高めることができるとともに、横方向の補強鉄筋の施工性を高くすることができるプレキャスト床版継手構造およびプレキャスト床版継手の接合工法を提供する。【解決手段】プレキャスト床版１から橋軸方向に延び、高さ方向に間隔をおいて配置される複数対の上部鉄筋継手１１及び下部鉄筋継手１２と、対向する上部鉄筋継手１１及び下部鉄筋継手１２の先端側に結束され、先端側を凸形状にした複数のＵ字型補強鉄筋１４と、橋軸直交方向に延びて上部鉄筋継手１１及び下部鉄筋継手１２に結束される複数の橋軸直交補強鉄筋１５と、を備え、上部鉄筋継手１１及び下部鉄筋継手１２の各端部は、それぞれ下部鉄筋継手１２及び上部鉄筋継手１１に向けて曲げられ、かつ、曲げられた上部鉄筋継手１１及び下部鉄筋継手１２の各最端部の間隙１３の幅Ｗを橋軸直交補強鉄筋１５の径以上とする。【選択図】図２
PRECAST FLOOR SLAB JOINT STRUCTURE AND METHOD FOR JOINING PRECAST FLOOR SLAB JOINT
To provide a precast floor slab joint structure and a joining method of the precast floor slab joint capable of reducing the thickness of the floor slab, enhancing on-site processability, and enhancing the workability of reinforcing bars in the transverse direction.SOLUTION: A precast floor slab joint structure includes a plurality of pairs of upper reinforcement joints 11 and lower reinforcement joints 12 extending from a precast floor slab 1 in a bridge axis direction and arranged at intervals in a height direction, a plurality of U-shaped reinforcement bars 14 bound to tip sides of the opposed upper reinforcement joints 11 and lower reinforcement joints 12 and having convex tip sides, and a plurality of bridge-axis-orthogonal reinforcement bars 15 extending in a bridge-axis-orthogonal direction and bound to the upper reinforcement joints 11 and the lower reinforcement joints 12; each end of the upper reinforcement joint 11 and the lower reinforcement joint 12 is bent toward the lower reinforcement joint 12 and the upper reinforcement joint 11, respectively, and a width W of a gap 13 of each endmost part of the bent upper reinforcement joint 11 and the lower reinforcement joint 12 is set to be equal to or larger than the diameter of the bridge-axis-orthogonal reinforcement bars 15.SELECTED DRAWING: Figure 2
【課題】床版厚さの薄型化および現場加工性を高めることができるとともに、横方向の補強鉄筋の施工性を高くすることができるプレキャスト床版継手構造およびプレキャスト床版継手の接合工法を提供する。【解決手段】プレキャスト床版１から橋軸方向に延び、高さ方向に間隔をおいて配置される複数対の上部鉄筋継手１１及び下部鉄筋継手１２と、対向する上部鉄筋継手１１及び下部鉄筋継手１２の先端側に結束され、先端側を凸形状にした複数のＵ字型補強鉄筋１４と、橋軸直交方向に延びて上部鉄筋継手１１及び下部鉄筋継手１２に結束される複数の橋軸直交補強鉄筋１５と、を備え、上部鉄筋継手１１及び下部鉄筋継手１２の各端部は、それぞれ下部鉄筋継手１２及び上部鉄筋継手１１に向けて曲げられ、かつ、曲げられた上部鉄筋継手１１及び下部鉄筋継手１２の各最端部の間隙１３の幅Ｗを橋軸直交補強鉄筋１５の径以上とする。【選択図】図２
PRECAST FLOOR SLAB JOINT STRUCTURE AND METHOD FOR JOINING PRECAST FLOOR SLAB JOINT
プレキャスト床版継手構造およびプレキャスト床版継手の接合工法
YOSHITAKE KENJI (author)
2024-05-27
Patent
Electronic Resource
Japanese
IPC:
E01D
BRIDGES
,
Brücken
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