A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
BRIDGE REPLACEMENT METHOD
To reduce the area and period for providing temporary scaffolding when performing bridge replacement work and to shorten the construction period required for the bridge replacement work compared to the past.SOLUTION: A bridge replacement method for replacing an existing superstructure 80 of a bridge with a new superstructure 10 includes: a first jack up step of jacking up a new superstructure body 10A, having a new girder body 12A and a new floor slab body 14A, to a first position below the existing superstructure 80; an existing superstructure dismantling and removal step of dismantling and removing the existing superstructure 80 to be replaced using the new superstructure body 10A as a scaffold; a second jack up step, performed after the existing superstructure dismantling and removal step, of further jacking up the new superstructure body 10A to a height position during operation being higher than the first position; and an end girder connection step of connecting end girders 12B that respectively connect substructures 86 and 88 to both ends of the new girder body 12A in the bridge axis direction of the new superstructure body 10A.SELECTED DRAWING: Figure 4
【課題】橋梁を架け替える際の仮設足場を設ける領域および期間を削減して、橋梁架け替えに要する施工期間を従来よりも短縮させる。【解決手段】橋梁の既設上部工８０を新設上部工１０に架け替える橋梁架け替え工法であって、新設桁本体部１２Ａおよび新設床版本体部１４Ａを有してなる新設上部工本体部１０Ａを、既設上部工８０の下方の第１位置にジャッキアップする第１ジャッキアップ工程と、新設上部工本体部１０Ａを足場として利用して、架け替え対象の既設上部工８０を解体撤去する既設上部工解体撤去工程と、前記既設上部工解体撤去工程の後、新設上部工本体部１０Ａを、前記第１位置よりも高い供用時の高さ位置までさらにジャッキアップする第２ジャッキアップ工程と、新設上部工本体部１０Ａの新設桁本体部１２Ａの橋軸方向両端部に、下部工８６、８８と連結する端部桁１２Ｂをそれぞれ連結する端部桁連結工程と、を有する。【選択図】図４
BRIDGE REPLACEMENT METHOD
To reduce the area and period for providing temporary scaffolding when performing bridge replacement work and to shorten the construction period required for the bridge replacement work compared to the past.SOLUTION: A bridge replacement method for replacing an existing superstructure 80 of a bridge with a new superstructure 10 includes: a first jack up step of jacking up a new superstructure body 10A, having a new girder body 12A and a new floor slab body 14A, to a first position below the existing superstructure 80; an existing superstructure dismantling and removal step of dismantling and removing the existing superstructure 80 to be replaced using the new superstructure body 10A as a scaffold; a second jack up step, performed after the existing superstructure dismantling and removal step, of further jacking up the new superstructure body 10A to a height position during operation being higher than the first position; and an end girder connection step of connecting end girders 12B that respectively connect substructures 86 and 88 to both ends of the new girder body 12A in the bridge axis direction of the new superstructure body 10A.SELECTED DRAWING: Figure 4
【課題】橋梁を架け替える際の仮設足場を設ける領域および期間を削減して、橋梁架け替えに要する施工期間を従来よりも短縮させる。【解決手段】橋梁の既設上部工８０を新設上部工１０に架け替える橋梁架け替え工法であって、新設桁本体部１２Ａおよび新設床版本体部１４Ａを有してなる新設上部工本体部１０Ａを、既設上部工８０の下方の第１位置にジャッキアップする第１ジャッキアップ工程と、新設上部工本体部１０Ａを足場として利用して、架け替え対象の既設上部工８０を解体撤去する既設上部工解体撤去工程と、前記既設上部工解体撤去工程の後、新設上部工本体部１０Ａを、前記第１位置よりも高い供用時の高さ位置までさらにジャッキアップする第２ジャッキアップ工程と、新設上部工本体部１０Ａの新設桁本体部１２Ａの橋軸方向両端部に、下部工８６、８８と連結する端部桁１２Ｂをそれぞれ連結する端部桁連結工程と、を有する。【選択図】図４
BRIDGE REPLACEMENT METHOD
橋梁架け替え工法
KASAI SATOSHI (author) / NAKAMURA SHINYA (author) / ISA KAZUTO (author)
2020-12-24
Patent
Electronic Resource
Japanese
IPC:
E01D
BRIDGES
,
Brücken
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