A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
RAILROAD BRIDGE GIRDER END STRUCTURE
To provide the girder end structure of a railroad bridge capable of securing traveling safety of railroad vehicles on tracks, while imparting a flexible structure with an enlarged joint gap of the girder ends to protect the railroad bridge against earthquake motion of giant earthquakes.SOLUTION: The girder end structure of a railroad bridge having tracks includes a pair of connection part rails for connecting rails respectively fixed onto a track slab positioned across a joint gap of girders, rigid block members coupled with each other along lower parts of the connection part rails to heighten rigidity of the connection part rails, and vibration damping support devices provided on both sides across the joint gap and lifting up the rigid block members from a lower side and supporting. A first vibration damping support device across the joint gap out of the vibration damping support devices regulates movement of the rigid block members to the side direction and the longitudinal direction, and the other second vibration damping support device regulates the movement of the rigid block members to the side direction only.SELECTED DRAWING: Figure 1
【課題】 巨大地震の地震動等に対して鉄道橋りょうを保護すべく桁端の遊間を拡大した柔構造を与えつつも鉄道車両の軌道上の走行安定性を確保できるような鉄道橋りょうの桁端構造の提供。【解決手段】 軌道を与えられた鉄道橋りょうの桁端構造である。桁同士の遊間を挟んで位置する軌道スラブ上にそれぞれ固定されたレールを接続する一対の接続部レールと、接続部レールの剛性を高めるように、接続部レールの下部に沿って互いに締結された剛性ブロック部材と、遊間を挟んだ両側に与えられ、剛性ブロック部材をその下部から持ち上げ支持する制振支持装置と、を含み、制振支持装置のうち、遊間を挟んだ一方の第１の制振支持装置は剛性ブロック部材の側方及び長手方向への移動を規制し、他方の第２の制振支持装置は剛性ブロック部材の側方への移動のみ規制することを特徴とする。【選択図】図１
RAILROAD BRIDGE GIRDER END STRUCTURE
To provide the girder end structure of a railroad bridge capable of securing traveling safety of railroad vehicles on tracks, while imparting a flexible structure with an enlarged joint gap of the girder ends to protect the railroad bridge against earthquake motion of giant earthquakes.SOLUTION: The girder end structure of a railroad bridge having tracks includes a pair of connection part rails for connecting rails respectively fixed onto a track slab positioned across a joint gap of girders, rigid block members coupled with each other along lower parts of the connection part rails to heighten rigidity of the connection part rails, and vibration damping support devices provided on both sides across the joint gap and lifting up the rigid block members from a lower side and supporting. A first vibration damping support device across the joint gap out of the vibration damping support devices regulates movement of the rigid block members to the side direction and the longitudinal direction, and the other second vibration damping support device regulates the movement of the rigid block members to the side direction only.SELECTED DRAWING: Figure 1
【課題】 巨大地震の地震動等に対して鉄道橋りょうを保護すべく桁端の遊間を拡大した柔構造を与えつつも鉄道車両の軌道上の走行安定性を確保できるような鉄道橋りょうの桁端構造の提供。【解決手段】 軌道を与えられた鉄道橋りょうの桁端構造である。桁同士の遊間を挟んで位置する軌道スラブ上にそれぞれ固定されたレールを接続する一対の接続部レールと、接続部レールの剛性を高めるように、接続部レールの下部に沿って互いに締結された剛性ブロック部材と、遊間を挟んだ両側に与えられ、剛性ブロック部材をその下部から持ち上げ支持する制振支持装置と、を含み、制振支持装置のうち、遊間を挟んだ一方の第１の制振支持装置は剛性ブロック部材の側方及び長手方向への移動を規制し、他方の第２の制振支持装置は剛性ブロック部材の側方への移動のみ規制することを特徴とする。【選択図】図１
RAILROAD BRIDGE GIRDER END STRUCTURE
鉄道橋りょう桁端構造
NARITA KENJI (author) / TOKUNAGA MUNEMASA (author) / WATANABE TSUTOMU (author) / IKEDA MANABU (author)
2021-06-10
Patent
Electronic Resource
Japanese
Erection of a long plate-girder railroad bridge
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Plate girder railroad bridge over Lech River at Rain
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