A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
STEEL BEAM AND COLUMN-BEAM JOINT STRUCTURE
PROBLEM TO BE SOLVED: To provide a steel beam and a column-beam joint structure that prevent buckling of a web when exposed to horizontal external force caused by an earthquake, etc.SOLUTION: A steel beam is provided with a stiffening member 5 on a flange 2 at an end portion of the beam and the other stiffening member 5 on the flange 2 on the other side. The stiffening members 5 enhance flexural rigidity of the flange 2, and suppress U-shaped, curved buckling of the flange 2 at the end portion of the beam. The configuration suppresses collapsing of a web 3 due to buckling of the flange 2, thereby suppressing buckling accompanied by rapid decline in load resistant capacity of the member.SELECTED DRAWING: Figure 1
【課題】地震等により作用する水平外力に対して、ウェブのクリッピング破壊を抑制できる鉄骨梁および柱梁接合構造を提供する。【解決手段】梁端部の一方のフランジ２に一方の補剛部材５が設けられ、他方のフランジ２に他方の補剛部材５が設けられているので、これら補剛部材５によって、フランジ２の曲げ剛性を高めて、梁端部のフランジ２にＵ字形の湾曲した座屈が生じるのを抑制できる。このため、フランジ２の座屈に起因するウェブ３の圧潰を抑制できるので、急激な部材の耐荷能力の低下を伴うクリッピング破壊を抑制できる。【選択図】図１
STEEL BEAM AND COLUMN-BEAM JOINT STRUCTURE
PROBLEM TO BE SOLVED: To provide a steel beam and a column-beam joint structure that prevent buckling of a web when exposed to horizontal external force caused by an earthquake, etc.SOLUTION: A steel beam is provided with a stiffening member 5 on a flange 2 at an end portion of the beam and the other stiffening member 5 on the flange 2 on the other side. The stiffening members 5 enhance flexural rigidity of the flange 2, and suppress U-shaped, curved buckling of the flange 2 at the end portion of the beam. The configuration suppresses collapsing of a web 3 due to buckling of the flange 2, thereby suppressing buckling accompanied by rapid decline in load resistant capacity of the member.SELECTED DRAWING: Figure 1
【課題】地震等により作用する水平外力に対して、ウェブのクリッピング破壊を抑制できる鉄骨梁および柱梁接合構造を提供する。【解決手段】梁端部の一方のフランジ２に一方の補剛部材５が設けられ、他方のフランジ２に他方の補剛部材５が設けられているので、これら補剛部材５によって、フランジ２の曲げ剛性を高めて、梁端部のフランジ２にＵ字形の湾曲した座屈が生じるのを抑制できる。このため、フランジ２の座屈に起因するウェブ３の圧潰を抑制できるので、急激な部材の耐荷能力の低下を伴うクリッピング破壊を抑制できる。【選択図】図１
STEEL BEAM AND COLUMN-BEAM JOINT STRUCTURE
鉄骨梁および柱梁接合構造
ITO HIROSHI (author) / KITAOKA SATOSHI (author) / KIMURA KEI (author) / SUZUKI TAKAHIKO (author)
2017-09-21
Patent
Electronic Resource
Japanese
STEEL BEAM AND COLUMN-BEAM JOINT STRUCTURE USING STEEL BEAM
| European Patent Office | 2019