A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
STEEL BEAM AND DESIGN METHOD OF STEEL BEAM
To provide a steel beam allowing installation of a first reinforcement member and a second reinforcement member while avoiding interference with each other, even providing a through-hole of desired size to a web, capable of preventing buckling of the web and preventing lowering of bearing force of the web due to the through-hole, and a design method of the steel beam.SOLUTION: A steel beam has stiffeners 5 (first reinforcement members) provided near an end part 41 in a longitudinal direction of a web 4 and preventing buckling of the web 4, and a through-hole reinforcement member 6 (a second reinforcement member) provided around a through-hole 43 and preventing lowering of bearing force of the web 4 due to the through-hole 43. The stiffener 5 is not provided in a through-hole reinforcement member setting range 44 in the longitudinal direction of the web 4, the buckling bearing force of a stiffener-omitted range 42 near the end part 41 in the longitudinal direction of the web 4 is set to be larger than the buckling bearing force in a case when assuming that the through-hole 43 is not formed in the stiffener-omitted range 42 and that the stiffener 5 is provided.SELECTED DRAWING: Figure 1
【課題】ウェブに所望のサイズの貫通孔を設けても、第１補強部材と第２補強部材とを干渉しないように設けることができて、ウェブの座屈を防止できるとともに、貫通孔によるウェブの耐力低下を防止することができる鉄骨梁および鉄骨梁の設計方法を提供する。【解決手段】ウェブ４の長さ方向の端部近傍４１に設けられ、ウェブ４の座屈を防止するスチフナ５（第１補強部材）と、貫通孔４３の周囲に設けられ、貫通孔４３によるウェブ４の耐力低下を防止する貫通孔補強部材６（第２補強部材）と、を有し、スチフナ５は、ウェブ４の前記長さ方向における貫通孔補強部材設置範囲４４には設けられておらず、ウェブ４の長さ方向の端部近傍４１におけるスチフナ省略範囲４２の座屈耐力は、スチフナ省略範囲４２において貫通孔４３が形成されておらず、スチフナ５が設けられていると仮定した場合の座屈耐力よりも大きく設定されている。【選択図】図１
STEEL BEAM AND DESIGN METHOD OF STEEL BEAM
To provide a steel beam allowing installation of a first reinforcement member and a second reinforcement member while avoiding interference with each other, even providing a through-hole of desired size to a web, capable of preventing buckling of the web and preventing lowering of bearing force of the web due to the through-hole, and a design method of the steel beam.SOLUTION: A steel beam has stiffeners 5 (first reinforcement members) provided near an end part 41 in a longitudinal direction of a web 4 and preventing buckling of the web 4, and a through-hole reinforcement member 6 (a second reinforcement member) provided around a through-hole 43 and preventing lowering of bearing force of the web 4 due to the through-hole 43. The stiffener 5 is not provided in a through-hole reinforcement member setting range 44 in the longitudinal direction of the web 4, the buckling bearing force of a stiffener-omitted range 42 near the end part 41 in the longitudinal direction of the web 4 is set to be larger than the buckling bearing force in a case when assuming that the through-hole 43 is not formed in the stiffener-omitted range 42 and that the stiffener 5 is provided.SELECTED DRAWING: Figure 1
【課題】ウェブに所望のサイズの貫通孔を設けても、第１補強部材と第２補強部材とを干渉しないように設けることができて、ウェブの座屈を防止できるとともに、貫通孔によるウェブの耐力低下を防止することができる鉄骨梁および鉄骨梁の設計方法を提供する。【解決手段】ウェブ４の長さ方向の端部近傍４１に設けられ、ウェブ４の座屈を防止するスチフナ５（第１補強部材）と、貫通孔４３の周囲に設けられ、貫通孔４３によるウェブ４の耐力低下を防止する貫通孔補強部材６（第２補強部材）と、を有し、スチフナ５は、ウェブ４の前記長さ方向における貫通孔補強部材設置範囲４４には設けられておらず、ウェブ４の長さ方向の端部近傍４１におけるスチフナ省略範囲４２の座屈耐力は、スチフナ省略範囲４２において貫通孔４３が形成されておらず、スチフナ５が設けられていると仮定した場合の座屈耐力よりも大きく設定されている。【選択図】図１
STEEL BEAM AND DESIGN METHOD OF STEEL BEAM
鉄骨梁および鉄骨梁の設計方法
ISHII DAIGO (author) / KUBOYAMA HIROYUKI (author) / OZAWA HIROCHIKA (author) / USHIZAKA SHINYA (author)
2020-06-18
Patent
Electronic Resource
Japanese
IPC:
E04C
STRUCTURAL ELEMENTS
,
Bauelemente
British Library Online Contents | 2005