A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
TRUSS BEAM
To provide a truss beam that has high deformability at an earthquake and is restrained from concentrating stress on chord members and diagonal members at the earthquake.SOLUTION: A truss beam 1 comprises upper chord members 2, lower chord members 3 and diagonal members 4. The lower chord member 3 has a body part 6 and a buckling restriction member 7 (deformation allowable member) that is plasticized prior to the body part 6 but includes a member with buckling restricted. Upper end sides of a first diagonal member 17 and a second diagonal member 18 positioned above the buckling restriction member 7 are connected at a mutual junction between a first upper chord member 15 and a second upper chord member 16 each constituting the upper chord member 2. The connection between the first upper chord member 15 and the second upper chord member 16 includes a first pin connection structure 19 considered to be a pin connection at an earthquake equal to or larger than at least prescribed magnitude.SELECTED DRAWING: Figure 1
【課題】地震時の変形能力が高く、地震時に弦材や斜材に応力が集中することが抑制されたトラス梁を提供する。【解決手段】トラス梁１は、上弦材２、下弦材３及び斜材４を有する。下弦材３は、本体部６と、本体部６よりも先に塑性化するが座屈が拘束された部材を含む座屈拘束部材７（変形許容部材）とを有する。上弦材２を構成する第１上弦材１５と第２上弦材１６との互いの接合部に、座屈拘束部材７の上方位置する第１斜材１７及び第２斜材１８の上端側が接合している。第１上弦材１５と第２上弦材１６との接合は、少なくとも所定の規模以上の地震時にピン結合とみなせる第１ピン接合構造１９を含む。【選択図】図１
TRUSS BEAM
To provide a truss beam that has high deformability at an earthquake and is restrained from concentrating stress on chord members and diagonal members at the earthquake.SOLUTION: A truss beam 1 comprises upper chord members 2, lower chord members 3 and diagonal members 4. The lower chord member 3 has a body part 6 and a buckling restriction member 7 (deformation allowable member) that is plasticized prior to the body part 6 but includes a member with buckling restricted. Upper end sides of a first diagonal member 17 and a second diagonal member 18 positioned above the buckling restriction member 7 are connected at a mutual junction between a first upper chord member 15 and a second upper chord member 16 each constituting the upper chord member 2. The connection between the first upper chord member 15 and the second upper chord member 16 includes a first pin connection structure 19 considered to be a pin connection at an earthquake equal to or larger than at least prescribed magnitude.SELECTED DRAWING: Figure 1
【課題】地震時の変形能力が高く、地震時に弦材や斜材に応力が集中することが抑制されたトラス梁を提供する。【解決手段】トラス梁１は、上弦材２、下弦材３及び斜材４を有する。下弦材３は、本体部６と、本体部６よりも先に塑性化するが座屈が拘束された部材を含む座屈拘束部材７（変形許容部材）とを有する。上弦材２を構成する第１上弦材１５と第２上弦材１６との互いの接合部に、座屈拘束部材７の上方位置する第１斜材１７及び第２斜材１８の上端側が接合している。第１上弦材１５と第２上弦材１６との接合は、少なくとも所定の規模以上の地震時にピン結合とみなせる第１ピン接合構造１９を含む。【選択図】図１
TRUSS BEAM
トラス梁
EGASHIRA HIROSHI (author) / HARADA HIROYUKI (author) / KAWASHIMA MANABU (author) / KISHIKI SHOICHI (author)
2020-08-06
Patent
Electronic Resource
Japanese