A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
FLOOR SLAB REPLACEMENT STRUCTURE AND FLOOR SLAB REPLACEMENT METHOD
To provide a floor slab replacement structure and a floor slab replacement method that can control the deflection of steel floor slabs to ensure roadway rigidity as a bridge, and also minimize traffic restrictions by making it a simple floor slab replacement method.SOLUTION: A floor slab replacing method comprises the steps of: leaving a part of an upper surface 11A of a main girder upper flange 11A in a reinforced-concrete floor slab; installing a steel floor slab 3 having a first vertical rib 32B not joined to a horizontal rib 33 between the first vertical rib 32B and the main girder upper flange 11A at an interval in the vertical direction; removing a part of the remaining concrete part in the bridge axial direction X of a main girder 11 to expose a concrete removal surface 11b; pushing and interposing a spacer 41 between the concrete removal surface 11b of the main girder upper flange 11A and the first vertical rib 32B; and connecting the main girder upper flange 11A and the first vertical rib 32B by using a connecting bolt 42 in a state of sandwiching the spacer 41.SELECTED DRAWING: Figure 5
【課題】鋼床版のたわみを抑制して橋梁としての道路面剛性を確保でき、さらに、簡単に床版の取り替え方法とすることにより交通制限を最小限に抑えることができる床版取替え構造および床版取替え方法を提供する。【解決手段】鉄筋コンクリート床版のうち主桁上フランジ１１Ａの上面１１ａの一部を残置する工程と、横リブ３３に接合しない第１縦リブ３２Ｂを有する鋼床版３を、第１縦リブ３２Ｂと主桁上フランジ１１Ａとの間に上下方向に間隔をあけて設置する工程と、主桁１１の橋軸方向Ｘの一部の残置コンクリート部を除去してコンクリート除去面１１ｂを露出する工程と、主桁上フランジ１１Ａのコンクリート除去面１１ｂと第１縦リブ３２Ｂとの間にスペーサ４１を押し込み介在させる工程と、主桁上フランジ１１Ａと第１縦リブ３２Ｂとをスペーサ４１を挟んだ状態で結合ボルト４２を使用して結合する工程と、を有する。【選択図】図５
FLOOR SLAB REPLACEMENT STRUCTURE AND FLOOR SLAB REPLACEMENT METHOD
To provide a floor slab replacement structure and a floor slab replacement method that can control the deflection of steel floor slabs to ensure roadway rigidity as a bridge, and also minimize traffic restrictions by making it a simple floor slab replacement method.SOLUTION: A floor slab replacing method comprises the steps of: leaving a part of an upper surface 11A of a main girder upper flange 11A in a reinforced-concrete floor slab; installing a steel floor slab 3 having a first vertical rib 32B not joined to a horizontal rib 33 between the first vertical rib 32B and the main girder upper flange 11A at an interval in the vertical direction; removing a part of the remaining concrete part in the bridge axial direction X of a main girder 11 to expose a concrete removal surface 11b; pushing and interposing a spacer 41 between the concrete removal surface 11b of the main girder upper flange 11A and the first vertical rib 32B; and connecting the main girder upper flange 11A and the first vertical rib 32B by using a connecting bolt 42 in a state of sandwiching the spacer 41.SELECTED DRAWING: Figure 5
【課題】鋼床版のたわみを抑制して橋梁としての道路面剛性を確保でき、さらに、簡単に床版の取り替え方法とすることにより交通制限を最小限に抑えることができる床版取替え構造および床版取替え方法を提供する。【解決手段】鉄筋コンクリート床版のうち主桁上フランジ１１Ａの上面１１ａの一部を残置する工程と、横リブ３３に接合しない第１縦リブ３２Ｂを有する鋼床版３を、第１縦リブ３２Ｂと主桁上フランジ１１Ａとの間に上下方向に間隔をあけて設置する工程と、主桁１１の橋軸方向Ｘの一部の残置コンクリート部を除去してコンクリート除去面１１ｂを露出する工程と、主桁上フランジ１１Ａのコンクリート除去面１１ｂと第１縦リブ３２Ｂとの間にスペーサ４１を押し込み介在させる工程と、主桁上フランジ１１Ａと第１縦リブ３２Ｂとをスペーサ４１を挟んだ状態で結合ボルト４２を使用して結合する工程と、を有する。【選択図】図５
FLOOR SLAB REPLACEMENT STRUCTURE AND FLOOR SLAB REPLACEMENT METHOD
床版取替え構造および床版取替え方法
TOMINAGA NORIYOSHI (author) / YOKOZEKI KOICHI (author) / KITAICHI SAYURI (author) / TAKEUCHI DAISUKE (author) / TONEGAWA TARO (author) / OKABE TAKESHI (author)
2023-11-21
Patent
Electronic Resource
Japanese
IPC:
E01D
BRIDGES
,
Brücken
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