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PRECAST FLOOR SLAB JOINT STRUCTURE
To provide a precast floor slab joint structure with which unnecessarily increasing the thickness of a floor slab using a joint reinforcement loop-shaped part is not needed.SOLUTION: An upper side reinforcement 22a and a lower side reinforcement 22b of a joint reinforcement 22 are arranged to shift their positions from each other in the width direction of a floor slab end face S so that a loop part 22c is obliquely formed. Thus allowing a vertical interval H2 between the upper side reinforcement 22a and the lower side reinforcement 22b to be made smaller than a diameter D of the loop part 22c. As a result, compared to conventional cases where the loop part is orientated vertically, the floor slab thickness is not made unnecessarily large by the loop part and the thickness of the floor slab can be made the same as the dimensions in the design conditions. Thus, there is an advantage of not needing to unnecessarily increase the load on a main girder 10 due to the weight of a precast floor slab 20, or increase the amount of concrete used in a slab body 21.SELECTED DRAWING: Figure 4
【課題】継手鉄筋のループ状部分によって床版厚を無用に増大させることのないプレキャスト床版の接合構造を提供する。【解決手段】継手鉄筋２２の上側鉄筋部２２ａと下側鉄筋部２２ｂとを互いに床版端面Ｓの幅方向に位置がずれるように配置してループ部２２ｃを斜めに形成したので、上側鉄筋部２２ａと下側鉄筋部２２ｂの上下方向の間隔Ｈ2 をループ部２２ｃの直径Ｄよりも小さくすることができる。これにより、従来のようにループ部を縦向きにした場合に比べ、床版厚がループ部分によって必要以上に大きくなることがなく、床版厚を設計条件通りの寸法にすることができる。従って、プレキャスト床版２０の重量による主桁１０への負荷や床版本体２１のコンクリート使用量を無用に増大させることがないという利点がある。【選択図】図４
PRECAST FLOOR SLAB JOINT STRUCTURE
To provide a precast floor slab joint structure with which unnecessarily increasing the thickness of a floor slab using a joint reinforcement loop-shaped part is not needed.SOLUTION: An upper side reinforcement 22a and a lower side reinforcement 22b of a joint reinforcement 22 are arranged to shift their positions from each other in the width direction of a floor slab end face S so that a loop part 22c is obliquely formed. Thus allowing a vertical interval H2 between the upper side reinforcement 22a and the lower side reinforcement 22b to be made smaller than a diameter D of the loop part 22c. As a result, compared to conventional cases where the loop part is orientated vertically, the floor slab thickness is not made unnecessarily large by the loop part and the thickness of the floor slab can be made the same as the dimensions in the design conditions. Thus, there is an advantage of not needing to unnecessarily increase the load on a main girder 10 due to the weight of a precast floor slab 20, or increase the amount of concrete used in a slab body 21.SELECTED DRAWING: Figure 4
【課題】継手鉄筋のループ状部分によって床版厚を無用に増大させることのないプレキャスト床版の接合構造を提供する。【解決手段】継手鉄筋２２の上側鉄筋部２２ａと下側鉄筋部２２ｂとを互いに床版端面Ｓの幅方向に位置がずれるように配置してループ部２２ｃを斜めに形成したので、上側鉄筋部２２ａと下側鉄筋部２２ｂの上下方向の間隔Ｈ2 をループ部２２ｃの直径Ｄよりも小さくすることができる。これにより、従来のようにループ部を縦向きにした場合に比べ、床版厚がループ部分によって必要以上に大きくなることがなく、床版厚を設計条件通りの寸法にすることができる。従って、プレキャスト床版２０の重量による主桁１０への負荷や床版本体２１のコンクリート使用量を無用に増大させることがないという利点がある。【選択図】図４
PRECAST FLOOR SLAB JOINT STRUCTURE
プレキャスト床版の接合構造
KAWAMORI TAIICHIRO (author)
2019-01-10
Patent
Electronic Resource
Japanese
IPC:
E01D
BRIDGES
,
Brücken
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