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CONNECTION STRUCTURE OF PRECAST SLAB, AND HALF PRECAST CONCRETE SLAB HAVING THE CONNECTION STRUCTURE
To provide a connection structure configured by joining a plurality of precast slabs which achieves both improvement of a shear reinforcing effect in a joined part and shear displacement capacity on an interface, and improvement of workability.SOLUTION: A connection structure of a precast slab in which a first reinforcement group and a second reinforcement group extending in a direction crossing the first reinforcement group are embedded inside the precast slab, a notch part is formed on an end of the mutually adjacent precast slabs, a groove part is formed in a joined part of the adjacent precast slabs by the notch part, a groove filling concrete part is installed in the groove part as a part of an upper structure by cast-in-place concrete, the upper structure is composed of the groove filling concrete part and a body concrete part positioned above the groove filling concrete part, the end of the first reinforcement group has such a shape as to project toward the groove part and be folded into a hook shape toward a member internal direction of the precast slab, and in the groove part, a shear reinforcing bar group arranged astride the inside of the precast slab, the groove filling concrete part and the body concrete part is provided.SELECTED DRAWING: Figure 11
【課題】複数のプレキャスト版を接合させて構成される連結構造において、接合箇所でのせん断補強効果及び界面のせん断ずれ耐力の向上と、施工性の向上を両立する。【解決手段】プレキャスト版の内部には第１鉄筋群と第１鉄筋群に交差する方向に伸びる第２鉄筋群が埋設され、互いに隣接するプレキャスト版の端部に切欠部が形成され、切欠部によって隣接するプレキャスト版同士の接合部に溝部が構成され、溝部には上部構造の一部として溝埋めコンクリート部が現場打ちコンクリートにより打設され、上部構造は溝埋めコンクリート部とその上方に位置する本体コンクリート部と、から構成され、第１鉄筋群の端部は溝部に向けて突出しプレキャスト版の部材内部方向に向かってフック状に折り返された形状を有し、溝部において、プレキャスト版の内部と、溝埋めコンクリート部及び本体コンクリート部とに跨るように配置されるせん断補強筋群が設けられる。【選択図】図１１
CONNECTION STRUCTURE OF PRECAST SLAB, AND HALF PRECAST CONCRETE SLAB HAVING THE CONNECTION STRUCTURE
To provide a connection structure configured by joining a plurality of precast slabs which achieves both improvement of a shear reinforcing effect in a joined part and shear displacement capacity on an interface, and improvement of workability.SOLUTION: A connection structure of a precast slab in which a first reinforcement group and a second reinforcement group extending in a direction crossing the first reinforcement group are embedded inside the precast slab, a notch part is formed on an end of the mutually adjacent precast slabs, a groove part is formed in a joined part of the adjacent precast slabs by the notch part, a groove filling concrete part is installed in the groove part as a part of an upper structure by cast-in-place concrete, the upper structure is composed of the groove filling concrete part and a body concrete part positioned above the groove filling concrete part, the end of the first reinforcement group has such a shape as to project toward the groove part and be folded into a hook shape toward a member internal direction of the precast slab, and in the groove part, a shear reinforcing bar group arranged astride the inside of the precast slab, the groove filling concrete part and the body concrete part is provided.SELECTED DRAWING: Figure 11
【課題】複数のプレキャスト版を接合させて構成される連結構造において、接合箇所でのせん断補強効果及び界面のせん断ずれ耐力の向上と、施工性の向上を両立する。【解決手段】プレキャスト版の内部には第１鉄筋群と第１鉄筋群に交差する方向に伸びる第２鉄筋群が埋設され、互いに隣接するプレキャスト版の端部に切欠部が形成され、切欠部によって隣接するプレキャスト版同士の接合部に溝部が構成され、溝部には上部構造の一部として溝埋めコンクリート部が現場打ちコンクリートにより打設され、上部構造は溝埋めコンクリート部とその上方に位置する本体コンクリート部と、から構成され、第１鉄筋群の端部は溝部に向けて突出しプレキャスト版の部材内部方向に向かってフック状に折り返された形状を有し、溝部において、プレキャスト版の内部と、溝埋めコンクリート部及び本体コンクリート部とに跨るように配置されるせん断補強筋群が設けられる。【選択図】図１１
CONNECTION STRUCTURE OF PRECAST SLAB, AND HALF PRECAST CONCRETE SLAB HAVING THE CONNECTION STRUCTURE
プレキャスト版の連結構造及び当該連結構造を備えたハーフプレキャストコンクリート版
TANIGUCHI TETSUNORI (author) / NAKATANI IKUO (author) / KOYAMA NAOTO (author)
2022-04-20
Patent
Electronic Resource
Japanese
IPC:
E04B
Allgemeine Baukonstruktionen
,
GENERAL BUILDING CONSTRUCTIONS
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