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A platform for research: civil engineering, architecture and urbanism
JOINT STRUCTURE OF CONCRETE PRECAST FLOOR SLABS
To provide a mechanical joint structure of concrete precast floor slabs that can significantly shorten a construction period, improve the workability of connecting a female joint with a grooved cross section and a reinforcement bar connected to the rear surface, and reduce fatigue damage.SOLUTION: The joint structure is such that a female joint 3 of a precast floor slab 1A on one side is engaged with a male joint 4 of a precast floor slab 1B on the other side, and an internal space IS of the female joint 3, an upper space US of the female joint 3, and a clearance part M between the precast floor slab 1A on the one side and the precast floor slab 1B on the other side are filled with a grout material 17 in a state in which the precast floor slabs are connected to each other. The female joint 3 is provided with a hooking part 7 that can be engaged with a loop-shaped reinforcement bar 12 having a loop part 13 formed at a tip thereof. The hooking part 7 is provided so as to project outward on a side surface opposite to a vertical groove 3a of a groove-shaped cross-sectional part 6 in a plan view.SELECTED DRAWING: Figure 3
【課題】大幅な工期短縮が図れるようにするとともに、溝型断面の雌継手とその背面に接続する鉄筋との連結の施工性を向上するとともに疲労損傷の低減を図ったコンクリート製プレキャスト床版の機械式継手構造を提供する。【解決手段】一方側のプレキャスト床版１Ａの雌継手３に、他方側のプレキャスト床版１Ｂの雄継手４が係合し、プレキャスト床版同士を結合した状態とし、雌継手３の内部空間ＩＳ、雌継手３の上部側空間ＵＳ及び一方側のプレキャスト床版１Ａと他方側のプレキャスト床版１Ｂとの間隙部分Ｍにグラウト材１７が充填された構造とする。前記雌継手３は、先端にループ部１３が形成されたループ状鉄筋１２に掛合可能な掛合部７が備えられ、この掛合部７が平面視で溝型断面部６の縦溝３ａと反対側面に外方に突出するように設けられるようにする。【選択図】図３
JOINT STRUCTURE OF CONCRETE PRECAST FLOOR SLABS
To provide a mechanical joint structure of concrete precast floor slabs that can significantly shorten a construction period, improve the workability of connecting a female joint with a grooved cross section and a reinforcement bar connected to the rear surface, and reduce fatigue damage.SOLUTION: The joint structure is such that a female joint 3 of a precast floor slab 1A on one side is engaged with a male joint 4 of a precast floor slab 1B on the other side, and an internal space IS of the female joint 3, an upper space US of the female joint 3, and a clearance part M between the precast floor slab 1A on the one side and the precast floor slab 1B on the other side are filled with a grout material 17 in a state in which the precast floor slabs are connected to each other. The female joint 3 is provided with a hooking part 7 that can be engaged with a loop-shaped reinforcement bar 12 having a loop part 13 formed at a tip thereof. The hooking part 7 is provided so as to project outward on a side surface opposite to a vertical groove 3a of a groove-shaped cross-sectional part 6 in a plan view.SELECTED DRAWING: Figure 3
【課題】大幅な工期短縮が図れるようにするとともに、溝型断面の雌継手とその背面に接続する鉄筋との連結の施工性を向上するとともに疲労損傷の低減を図ったコンクリート製プレキャスト床版の機械式継手構造を提供する。【解決手段】一方側のプレキャスト床版１Ａの雌継手３に、他方側のプレキャスト床版１Ｂの雄継手４が係合し、プレキャスト床版同士を結合した状態とし、雌継手３の内部空間ＩＳ、雌継手３の上部側空間ＵＳ及び一方側のプレキャスト床版１Ａと他方側のプレキャスト床版１Ｂとの間隙部分Ｍにグラウト材１７が充填された構造とする。前記雌継手３は、先端にループ部１３が形成されたループ状鉄筋１２に掛合可能な掛合部７が備えられ、この掛合部７が平面視で溝型断面部６の縦溝３ａと反対側面に外方に突出するように設けられるようにする。【選択図】図３
JOINT STRUCTURE OF CONCRETE PRECAST FLOOR SLABS
コンクリート製プレキャスト床版の継手構造
ASANO HITOSHI (author) / NAGIRA TAKESHI (author) / SEKIGUCHI TAKASHI (author) / KATO MIYUKI (author) / KITAHARA SHINYA (author) / KANI YUKITSUGU (author) / TANAKA TORU (author) / MATSUI SHIGEYUKI (author)
2020-10-29
Patent
Electronic Resource
Japanese
IPC:
E01D
BRIDGES
,
Brücken
JOINT STRUCTURE AND JOINT METHOD FOR PRECAST FLOOR SLABS
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