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A platform for research: civil engineering, architecture and urbanism
METHOD AND STRUCTURE FOR REDUCING STRESS ACTING ON MAIN BEAM
To provide a technology that can further easily and reliably reduce stress acting on a main girder 20 during the period when a temporary slab 12 is placed in the replacement work of the deck slab for the existing composite girder.SOLUTION: In a slab replacement method in which existing slabs 11 of a composite girder are removed and temporary slabs 12 with a strength that can be considered a rigid body against forces acting in the bridge axis direction are placed in a temporary state at the location where the existing slabs 11 have been removed, and then the temporary slabs 12 are removed and new slabs 13 are placed where the temporary slabs 12 have been removed, connecting members 30, being members with a strength that can be regarded as a rigid body against the force acting in the bridge axis direction AX, are detachably fixed to at least the upper surfaces of the adjacent slabs and the temporary slabs 12 so as to straddle the gap G, which is the space between adjacent slabs, being other slabs adjacent to the temporary slabs 12 in the bridge axis direction AX, and the temporary slabs 12.SELECTED DRAWING: Figure 8
【課題】既設合成桁の床版取替工事において仮設床版１２が配設されている期間中に主桁２０に作用する応力をより容易且つ確実に低減することが可能な技術を提供する。【解決手段】合成桁の既設床版１１を撤去し、橋軸方向に作用する力に対して剛体とみなすことが可能な強度を有する仮設床版１２を既設床版１１の撤去箇所に配設した状態である仮設状態とした後、仮設床版１２を撤去し、仮設床版１２の撤去箇所に新設床版１３を配設する床版取替工法において、橋軸方向ＡＸに作用する力に対して剛体とみなすことが可能な強度を備える部材である接続部材３０を、橋軸方向ＡＸにおいて仮設床版１２に隣接する他の床版である隣接床版と仮設床版１２との間の空間である隙間Ｇを跨ぐように、隣接床版及び仮設床版１２の少なくとも上面に脱着可能に固定する。【選択図】図８
METHOD AND STRUCTURE FOR REDUCING STRESS ACTING ON MAIN BEAM
To provide a technology that can further easily and reliably reduce stress acting on a main girder 20 during the period when a temporary slab 12 is placed in the replacement work of the deck slab for the existing composite girder.SOLUTION: In a slab replacement method in which existing slabs 11 of a composite girder are removed and temporary slabs 12 with a strength that can be considered a rigid body against forces acting in the bridge axis direction are placed in a temporary state at the location where the existing slabs 11 have been removed, and then the temporary slabs 12 are removed and new slabs 13 are placed where the temporary slabs 12 have been removed, connecting members 30, being members with a strength that can be regarded as a rigid body against the force acting in the bridge axis direction AX, are detachably fixed to at least the upper surfaces of the adjacent slabs and the temporary slabs 12 so as to straddle the gap G, which is the space between adjacent slabs, being other slabs adjacent to the temporary slabs 12 in the bridge axis direction AX, and the temporary slabs 12.SELECTED DRAWING: Figure 8
【課題】既設合成桁の床版取替工事において仮設床版１２が配設されている期間中に主桁２０に作用する応力をより容易且つ確実に低減することが可能な技術を提供する。【解決手段】合成桁の既設床版１１を撤去し、橋軸方向に作用する力に対して剛体とみなすことが可能な強度を有する仮設床版１２を既設床版１１の撤去箇所に配設した状態である仮設状態とした後、仮設床版１２を撤去し、仮設床版１２の撤去箇所に新設床版１３を配設する床版取替工法において、橋軸方向ＡＸに作用する力に対して剛体とみなすことが可能な強度を備える部材である接続部材３０を、橋軸方向ＡＸにおいて仮設床版１２に隣接する他の床版である隣接床版と仮設床版１２との間の空間である隙間Ｇを跨ぐように、隣接床版及び仮設床版１２の少なくとも上面に脱着可能に固定する。【選択図】図８
METHOD AND STRUCTURE FOR REDUCING STRESS ACTING ON MAIN BEAM
主桁に作用する応力を低減する方法及び構造
TAMADA KAZUNORI (author) / NAKADA TAKAFUMI (author) / UMEDA YUSUKE (author)
2024-10-09
Patent
Electronic Resource
Japanese
IPC:
E01D
BRIDGES
,
Brücken
METHOD AND STRUCTURE FOR REDUCING STRESS ACTING ON MAIN GIRDER
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