A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
STEEL BEAM, COLUMN-BEAM JOINT STRUCTURE, AND STRUCTURE HAVING THE SAME
To provide a steel beam, a column-beam joint structure, and a structure having the same, capable of improving plastic deformation capability after the steel beam reaches the maximum yield strength by suppressing the occurrence of local buckling in an end part in a material axial direction of the steel beam and relaxing stress concentration of a flange stiffened by a stiffener.SOLUTION: In a steel beam having an upper flange, a lower flange and a web connecting the upper and lower flanges, a plurality of stiffeners for stiffening the upper flange, the lower flange, and the web is disposed at equal intervals at two or more positions in a material axial direction of the steel beam at an end portion of the steel beam in the material axial direction, and among the plurality of stiffeners, the product of a horizontal cross-sectional area and a yield strength of a first stiffener closest to the center in the material axial direction is set to 0.5 time or more and 0.8 time or less of the product of the horizontal cross-sectional area and the yield strength of a second stiffener adjacent to the first stiffener in the material axial direction.SELECTED DRAWING: Figure 1
【課題】鉄骨梁の材軸方向の端部における局部座屈の発生を抑えるとともに、スチフナにより補剛されるフランジの応力集中を緩和して、鉄骨梁が最大耐力に到達した後の塑性変形能力を向上できる、鉄骨梁、柱梁接合構造およびこれを有する構造物を提供する。【解決手段】上フランジと、下フランジと、前記上フランジと前記下フランジとを連結するウェブとを有する鉄骨梁において、前記鉄骨梁の材軸方向の端部に、前記上フランジ、前記下フランジおよび前記ウェブを補剛する複数のスチフナを、前記材軸方向に沿って二以上の位置に均等な間隔で配設し、前記複数のスチフナのうち、前記材軸方向の中央に最も近い第一のスチフナの水平断面積と降伏強度の積を、前記第一のスチフナと前記材軸方向に隣接する第二のスチフナの水平断面積と降伏強度の積の０．５倍以上０．８倍以下に設定する。【選択図】図１
STEEL BEAM, COLUMN-BEAM JOINT STRUCTURE, AND STRUCTURE HAVING THE SAME
To provide a steel beam, a column-beam joint structure, and a structure having the same, capable of improving plastic deformation capability after the steel beam reaches the maximum yield strength by suppressing the occurrence of local buckling in an end part in a material axial direction of the steel beam and relaxing stress concentration of a flange stiffened by a stiffener.SOLUTION: In a steel beam having an upper flange, a lower flange and a web connecting the upper and lower flanges, a plurality of stiffeners for stiffening the upper flange, the lower flange, and the web is disposed at equal intervals at two or more positions in a material axial direction of the steel beam at an end portion of the steel beam in the material axial direction, and among the plurality of stiffeners, the product of a horizontal cross-sectional area and a yield strength of a first stiffener closest to the center in the material axial direction is set to 0.5 time or more and 0.8 time or less of the product of the horizontal cross-sectional area and the yield strength of a second stiffener adjacent to the first stiffener in the material axial direction.SELECTED DRAWING: Figure 1
【課題】鉄骨梁の材軸方向の端部における局部座屈の発生を抑えるとともに、スチフナにより補剛されるフランジの応力集中を緩和して、鉄骨梁が最大耐力に到達した後の塑性変形能力を向上できる、鉄骨梁、柱梁接合構造およびこれを有する構造物を提供する。【解決手段】上フランジと、下フランジと、前記上フランジと前記下フランジとを連結するウェブとを有する鉄骨梁において、前記鉄骨梁の材軸方向の端部に、前記上フランジ、前記下フランジおよび前記ウェブを補剛する複数のスチフナを、前記材軸方向に沿って二以上の位置に均等な間隔で配設し、前記複数のスチフナのうち、前記材軸方向の中央に最も近い第一のスチフナの水平断面積と降伏強度の積を、前記第一のスチフナと前記材軸方向に隣接する第二のスチフナの水平断面積と降伏強度の積の０．５倍以上０．８倍以下に設定する。【選択図】図１
STEEL BEAM, COLUMN-BEAM JOINT STRUCTURE, AND STRUCTURE HAVING THE SAME
鉄骨梁、柱梁接合構造およびこれを有する構造物
YASUNAGA JUMPEI (author)
2022-10-14
Patent
Electronic Resource
Japanese
STEEL FRAME BEAM, COLUMN-BEAM JOINING STRUCTURE, AND STRUCTURE HAVING SAME
| European Patent Office | 2022
COLUMN-BEAM JOINT STRUCTURE AND CONSTRUCTION METHOD OF BUILDING HAVING COLUMN-BEAM JOINT STRUCTURE
| European Patent Office | 2020