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A platform for research: civil engineering, architecture and urbanism
TRUSS BEAM
To provide a truss beam having high deformability in an earthquake, suppressed in stress concentration to chord members and diagonal members in the earthquake, and having enough strength.SOLUTION: A truss beam 1 has an upper chord 2, a lower chord 3, diagonal members 4 and an end part bundling material 5. An end part first diagonal material 9a arranged at an endmost part is longer than other diagonal members, and a lower end thereof is jointed to the lower chord 3 and the end part bundling material 5. The lower chord 3 includes a buckling restriction member 8 arranged between a column 6 and the end part bundling material 5. Joint of the column 6, the upper chord 2 and the end part first diagonal material 9a is regarded as a pin joint in an earthquake. Since the end part first diagonal material 9a is long, the relatively long buckling restriction member 8 can be set at an end part of the truss beam 1. Lowering of strength due to the long end part first diagonal material 9a can be compensated by the end part bundling material 5.SELECTED DRAWING: Figure 2
【課題】地震時の変形能力が高いトラス梁であって、地震時に弦材や斜材に応力が集中することが抑制され、十分な強度を有する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、斜材４及び端部束材５を備える。最も端部に配置された端部第１斜材９ａは、他の斜材よりも長く、その下端部は、下弦材３及び端部束材５に接合している。下弦材３は、柱６と端部束材５との間に配置された座屈拘束部材８を含む。柱６と上弦材２及び端部第１斜材９ａとの接合は地震時にピン接合とみなせる接合である。端部第１斜材が９ａ長いため、比較的長い座屈拘束部材８をトラス梁１の端部に設置できる。端部第１斜材９ａを長くしたことによる強度の低下は端部束材５によって補われる。【選択図】図２
TRUSS BEAM
To provide a truss beam having high deformability in an earthquake, suppressed in stress concentration to chord members and diagonal members in the earthquake, and having enough strength.SOLUTION: A truss beam 1 has an upper chord 2, a lower chord 3, diagonal members 4 and an end part bundling material 5. An end part first diagonal material 9a arranged at an endmost part is longer than other diagonal members, and a lower end thereof is jointed to the lower chord 3 and the end part bundling material 5. The lower chord 3 includes a buckling restriction member 8 arranged between a column 6 and the end part bundling material 5. Joint of the column 6, the upper chord 2 and the end part first diagonal material 9a is regarded as a pin joint in an earthquake. Since the end part first diagonal material 9a is long, the relatively long buckling restriction member 8 can be set at an end part of the truss beam 1. Lowering of strength due to the long end part first diagonal material 9a can be compensated by the end part bundling material 5.SELECTED DRAWING: Figure 2
【課題】地震時の変形能力が高いトラス梁であって、地震時に弦材や斜材に応力が集中することが抑制され、十分な強度を有する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、斜材４及び端部束材５を備える。最も端部に配置された端部第１斜材９ａは、他の斜材よりも長く、その下端部は、下弦材３及び端部束材５に接合している。下弦材３は、柱６と端部束材５との間に配置された座屈拘束部材８を含む。柱６と上弦材２及び端部第１斜材９ａとの接合は地震時にピン接合とみなせる接合である。端部第１斜材が９ａ長いため、比較的長い座屈拘束部材８をトラス梁１の端部に設置できる。端部第１斜材９ａを長くしたことによる強度の低下は端部束材５によって補われる。【選択図】図２
TRUSS BEAM
トラス梁
EGASHIRA HIROSHI (author) / KAWASHIMA MANABU (author) / OZU YURIKO (author)
2021-09-09
Patent
Electronic Resource
Japanese
IPC:
E04C
STRUCTURAL ELEMENTS
,
Bauelemente