A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
To provide a steel girder reinforcement method that generates neither residual stress due to thermal shrinkage caused by welding of a shear connector during replacement of a floor slab of a bridge, or unintended bending of a steel girder; while at the same time being capable of reinforcing the steel girder.SOLUTION: A method of reinforcing a steel girder 2 when replacing an existing floor slab of a bridge 1 with a new floor slab involves: placing a reinforcing steel plate 6, for reinforcing an upper surface of the steel girder 2, on a flat surface and welding with a shear connector, such as a stud dowel JB or a horseshoe-shaped dowel, in a state where no stress acts; then joining the reinforcing steel plate 6 welded with a shear connector in a state where no stress acts, to the upper surface of the steel girder 2 from which the existing floor slab has been removed.SELECTED DRAWING: Figure 4
【課題】橋梁の床版取替時においてずれ止めの溶接に伴う熱収縮による残留応力が発生せず、鋼桁に想定していない撓みが生じないとともに、同時に鋼桁の補強が可能な鋼桁の補強方法を提供する。【解決手段】橋梁１の既設床版を新設床版に取り替える際の鋼桁２の補強方法であって、鋼桁２の上面を補強する補強鋼板６を平面上に載置して応力が作用しない状態でスタッドジベルＪＢや馬蹄形ジベルなどのずれ止めを溶接し、その後、応力が作用しない状態でずれ止めが溶接された補強鋼板６を、既設床版が撤去された鋼桁２の上面に接合する。【選択図】図４
To provide a steel girder reinforcement method that generates neither residual stress due to thermal shrinkage caused by welding of a shear connector during replacement of a floor slab of a bridge, or unintended bending of a steel girder; while at the same time being capable of reinforcing the steel girder.SOLUTION: A method of reinforcing a steel girder 2 when replacing an existing floor slab of a bridge 1 with a new floor slab involves: placing a reinforcing steel plate 6, for reinforcing an upper surface of the steel girder 2, on a flat surface and welding with a shear connector, such as a stud dowel JB or a horseshoe-shaped dowel, in a state where no stress acts; then joining the reinforcing steel plate 6 welded with a shear connector in a state where no stress acts, to the upper surface of the steel girder 2 from which the existing floor slab has been removed.SELECTED DRAWING: Figure 4
【課題】橋梁の床版取替時においてずれ止めの溶接に伴う熱収縮による残留応力が発生せず、鋼桁に想定していない撓みが生じないとともに、同時に鋼桁の補強が可能な鋼桁の補強方法を提供する。【解決手段】橋梁１の既設床版を新設床版に取り替える際の鋼桁２の補強方法であって、鋼桁２の上面を補強する補強鋼板６を平面上に載置して応力が作用しない状態でスタッドジベルＪＢや馬蹄形ジベルなどのずれ止めを溶接し、その後、応力が作用しない状態でずれ止めが溶接された補強鋼板６を、既設床版が撤去された鋼桁２の上面に接合する。【選択図】図４
STEEL GIRDER REINFORCEMENT METHOD
鋼桁の補強方法
MATSUBARA SHIGEO (author)
2018-12-27
Patent
Electronic Resource
Japanese
IPC:
E01D
BRIDGES
,
Brücken
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