A platform for research: civil engineering, architecture and urbanism
FIREPROOF REINFORCING STRUCTURE
To provide a fireproof reinforcing structure sufficiently reinforcing fire resistance of a steel frame to which an existing fireproof coating layer is applied.SOLUTION: A fireproof reinforcing structure 1 for reinforcing fire resistance of a steel frame 3 having an existing fireproof coating layer 5 applied on a surface thereof is installed outside the existing fireproof coating layer 5 so as to cover at least a lower surface of a lower flange 15 of an H-steel constituting the steel frame 3, and comprises: a first sheet S1 comprising a foamable fireproof material 23 having a foamed layer 19 containing a foamed material and foamed by heating and a backing layer 21 backing the foamed layer 19; and a second sheet S2 disposed outside the first sheet S1 so as to cover at least the lower surface of the lower flange 15 of the H-steel. The second sheet S2 has a support layer for supporting the first sheet S1 in a state in which the foamed layer is foamed at heating without containing the foamed material.SELECTED DRAWING: Figure 1
【課題】本発明は、既存の耐火被覆層が施された鉄骨の耐火性を十分に補強する耐火補強構造を提供することを目的とする。【解決手段】耐火補強構造1は、既存の耐火被覆層5が表面に施された鉄骨3の耐火性を補強する耐火補強構造であって、鉄骨3を構成するH鋼の少なくとも下フランジ15の下面を覆うように既存の耐火被覆層5の外側に設置され、発泡材を含み加熱によって発泡する発泡層19と発泡層19を裏打ちする裏打層21とを有する発泡性耐火材23からなる第1シートS1と、H鋼の少なくとも下フランジ15の下面を覆うように第1シートS1の外側に設置された第2シートS2と、を備え、第2シートS2は、発泡材を含まず加熱時において発泡層が発泡した状態の第1シートS1を支持する支持層を有する。【選択図】図1
FIREPROOF REINFORCING STRUCTURE
To provide a fireproof reinforcing structure sufficiently reinforcing fire resistance of a steel frame to which an existing fireproof coating layer is applied.SOLUTION: A fireproof reinforcing structure 1 for reinforcing fire resistance of a steel frame 3 having an existing fireproof coating layer 5 applied on a surface thereof is installed outside the existing fireproof coating layer 5 so as to cover at least a lower surface of a lower flange 15 of an H-steel constituting the steel frame 3, and comprises: a first sheet S1 comprising a foamable fireproof material 23 having a foamed layer 19 containing a foamed material and foamed by heating and a backing layer 21 backing the foamed layer 19; and a second sheet S2 disposed outside the first sheet S1 so as to cover at least the lower surface of the lower flange 15 of the H-steel. The second sheet S2 has a support layer for supporting the first sheet S1 in a state in which the foamed layer is foamed at heating without containing the foamed material.SELECTED DRAWING: Figure 1
【課題】本発明は、既存の耐火被覆層が施された鉄骨の耐火性を十分に補強する耐火補強構造を提供することを目的とする。【解決手段】耐火補強構造1は、既存の耐火被覆層5が表面に施された鉄骨3の耐火性を補強する耐火補強構造であって、鉄骨3を構成するH鋼の少なくとも下フランジ15の下面を覆うように既存の耐火被覆層5の外側に設置され、発泡材を含み加熱によって発泡する発泡層19と発泡層19を裏打ちする裏打層21とを有する発泡性耐火材23からなる第1シートS1と、H鋼の少なくとも下フランジ15の下面を覆うように第1シートS1の外側に設置された第2シートS2と、を備え、第2シートS2は、発泡材を含まず加熱時において発泡層が発泡した状態の第1シートS1を支持する支持層を有する。【選択図】図1
FIREPROOF REINFORCING STRUCTURE
耐火補強構造
KAKAE NORICHIKA (author) / MIYAMOTO KEIICHI (author)
2020-09-17
Patent
Electronic Resource
Japanese
Building flame-retardant fireproof layer reinforcing structure installation construction method
European Patent Office | 2021
|METHOD OF REINFORCING FIREPROOF FUNCTION IN CONSTRUCTION PANEL
European Patent Office | 2015
|FIREPROOF SHEET, FIREPROOF MEMBER AND FIREPROOF STRUCTURE
European Patent Office | 2022
|Roof assembly with seismic strengthening and reinforcing fireproof function
European Patent Office | 2022
|