A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
BRIDGE GIRDER SNOW PREVENTION STRUCTURE
PROBLEM TO BE SOLVED: To protect a supporting part of a bridge pier and prevent a bridge girder from being lifted out of the bridge pier, even if there is a large quantity of snow cover on the bridge sidewalk of the bridge girder.SOLUTION: A bridge sidewalk 15 of a bridge girder 12 installed through supporting parts 11 (11A, 11B) on a bridge pier 10 includes: a floor board material 16 horizontally provided in the upper side of the bridge girder 12 and enabling walking on the upper surface; and an arm material 17 diagonally provided between the tip side of the floor board material 16 and the lower side of the bridge girder 12 positioned below the floor board material 16, and supporting the floor board material 16 from the lower part. The floor board material 16 is rotatably provided centering on a first horizontal axis 20 between a proximal end portion and the bridge girder 12. The arm material 17 has each connection part of the tip side of the floor board material 16 and the lower side of the bridge girder 12 provided centering on second and third horizontal axes 21, 22, respectively, and has a damper 23 (length adjustment means) in which a distance L between the connection parts can be changed according to a load applied on the floor board material 16.SELECTED DRAWING: Figure 1
【課題】橋桁の橋側歩道上に大量の積雪があった場合でも、該橋脚の支承部を保護して該橋桁が橋脚から浮き上がることを防止する。【解決手段】橋脚１０上に支承部１１（１１Ａ・１１Ｂ）を介して設置された橋桁１２の橋側歩道１５は、橋桁１２の上側部にて水平に設けられてその上面にて歩行が可能な床板材１６と、該床板材１６の先端側と該床板材１６の下方に位置する橋桁１２の下側部との間にて斜めに設けられて該床板材１６を下方から支持する腕材１７とを有する。床板材１６は基端部と橋桁１２との間の第１水平軸２０を中心に回転可能に設けられ、腕材１７は、床板材１６の先端側及び橋桁１２の下側部の各連結部が、第２及び第３水平軸２１・２２を中心としてそれぞれ回転自在に設けられ、連結部間の距離Ｌが、床板材１６にかかる荷重に応じて変更可能なダンパー２３（長さ調整手段）を有する。【選択図】図１
BRIDGE GIRDER SNOW PREVENTION STRUCTURE
PROBLEM TO BE SOLVED: To protect a supporting part of a bridge pier and prevent a bridge girder from being lifted out of the bridge pier, even if there is a large quantity of snow cover on the bridge sidewalk of the bridge girder.SOLUTION: A bridge sidewalk 15 of a bridge girder 12 installed through supporting parts 11 (11A, 11B) on a bridge pier 10 includes: a floor board material 16 horizontally provided in the upper side of the bridge girder 12 and enabling walking on the upper surface; and an arm material 17 diagonally provided between the tip side of the floor board material 16 and the lower side of the bridge girder 12 positioned below the floor board material 16, and supporting the floor board material 16 from the lower part. The floor board material 16 is rotatably provided centering on a first horizontal axis 20 between a proximal end portion and the bridge girder 12. The arm material 17 has each connection part of the tip side of the floor board material 16 and the lower side of the bridge girder 12 provided centering on second and third horizontal axes 21, 22, respectively, and has a damper 23 (length adjustment means) in which a distance L between the connection parts can be changed according to a load applied on the floor board material 16.SELECTED DRAWING: Figure 1
【課題】橋桁の橋側歩道上に大量の積雪があった場合でも、該橋脚の支承部を保護して該橋桁が橋脚から浮き上がることを防止する。【解決手段】橋脚１０上に支承部１１（１１Ａ・１１Ｂ）を介して設置された橋桁１２の橋側歩道１５は、橋桁１２の上側部にて水平に設けられてその上面にて歩行が可能な床板材１６と、該床板材１６の先端側と該床板材１６の下方に位置する橋桁１２の下側部との間にて斜めに設けられて該床板材１６を下方から支持する腕材１７とを有する。床板材１６は基端部と橋桁１２との間の第１水平軸２０を中心に回転可能に設けられ、腕材１７は、床板材１６の先端側及び橋桁１２の下側部の各連結部が、第２及び第３水平軸２１・２２を中心としてそれぞれ回転自在に設けられ、連結部間の距離Ｌが、床板材１６にかかる荷重に応じて変更可能なダンパー２３（長さ調整手段）を有する。【選択図】図１
BRIDGE GIRDER SNOW PREVENTION STRUCTURE
橋桁積雪防止構造
KOBAYASHI YUSUKE (author)
2017-08-17
Patent
Electronic Resource
Japanese
IPC:
E01D
BRIDGES
,
Brücken
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