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A platform for research: civil engineering, architecture and urbanism
STEEL BRIDGE WIDENING INSTALLATION DEVICE AND STEEL BRIDGE WIDENING INSTALLATION METHOD
To enable the widening work of an existing steel bridge without using a bent and with one lane regulation.SOLUTION: A hanging frame 12 to be arranged in a prescribed position by lifting and hanging a widening member 82, and a receiving cross beam 14 attached to an existing girder 102 of an existing steel bridge 100 so as to project to the side where the widening work is performed are provided; the hanging frame 12 has a frame part 16 forming a skeleton thereof, and lifting and hanging means 70 which performs lifting and hanging of the widening member 82 and which is movable in a direction perpendicular to the bridge axis; the frame part 16 has leg parts 20 and 22 extending substantially in a vertical direction, and a beam part 24 extending in a substantially perpendicular direction to the bridge axis; the beam part 24 is a ceiling part of the frame part 16; the first leg part 20 is supported by the receiving cross beam 14; and the second leg part 22 is supported by a portion of the existing steel bridge 100 on the side where the widening work is performed outside the existing steel bridge 100 in the direction perpendicular to the bridge axis from the roadway of the existing steel bridge 100.SELECTED DRAWING: Figure 5
【課題】ベントを用いずに、かつ、１車線規制で、既設鋼橋の拡幅工事を可能とする。【解決手段】拡幅部材８２の吊り上げおよび吊り下げを行って所定の位置に配置する吊りフレーム１２と、拡幅工事を行う側に突出するように既設鋼橋１００の既設桁１０２に取り付けられた受け横梁１４と、を備え、吊りフレーム１２は、その骨格を形作るフレーム部１６と、拡幅部材８２の吊り上げおよび吊り下げを行うとともに橋軸直角方向に移動可能な吊り昇降手段７０と、を有し、フレーム部１６は略鉛直方向に延びる脚部２０、２２と略橋軸直角方向に延びる梁部２４を有してなり、梁部２４はフレーム部１６の天井部となっており、第１の脚部２０は、受け横梁１４に支持されており、第２の脚部２２は、既設鋼橋１００の車道よりも既設鋼橋１００の橋軸直角方向に外側で拡幅工事を行う側の既設鋼橋１００の部位に支持されている。【選択図】図５
STEEL BRIDGE WIDENING INSTALLATION DEVICE AND STEEL BRIDGE WIDENING INSTALLATION METHOD
To enable the widening work of an existing steel bridge without using a bent and with one lane regulation.SOLUTION: A hanging frame 12 to be arranged in a prescribed position by lifting and hanging a widening member 82, and a receiving cross beam 14 attached to an existing girder 102 of an existing steel bridge 100 so as to project to the side where the widening work is performed are provided; the hanging frame 12 has a frame part 16 forming a skeleton thereof, and lifting and hanging means 70 which performs lifting and hanging of the widening member 82 and which is movable in a direction perpendicular to the bridge axis; the frame part 16 has leg parts 20 and 22 extending substantially in a vertical direction, and a beam part 24 extending in a substantially perpendicular direction to the bridge axis; the beam part 24 is a ceiling part of the frame part 16; the first leg part 20 is supported by the receiving cross beam 14; and the second leg part 22 is supported by a portion of the existing steel bridge 100 on the side where the widening work is performed outside the existing steel bridge 100 in the direction perpendicular to the bridge axis from the roadway of the existing steel bridge 100.SELECTED DRAWING: Figure 5
【課題】ベントを用いずに、かつ、１車線規制で、既設鋼橋の拡幅工事を可能とする。【解決手段】拡幅部材８２の吊り上げおよび吊り下げを行って所定の位置に配置する吊りフレーム１２と、拡幅工事を行う側に突出するように既設鋼橋１００の既設桁１０２に取り付けられた受け横梁１４と、を備え、吊りフレーム１２は、その骨格を形作るフレーム部１６と、拡幅部材８２の吊り上げおよび吊り下げを行うとともに橋軸直角方向に移動可能な吊り昇降手段７０と、を有し、フレーム部１６は略鉛直方向に延びる脚部２０、２２と略橋軸直角方向に延びる梁部２４を有してなり、梁部２４はフレーム部１６の天井部となっており、第１の脚部２０は、受け横梁１４に支持されており、第２の脚部２２は、既設鋼橋１００の車道よりも既設鋼橋１００の橋軸直角方向に外側で拡幅工事を行う側の既設鋼橋１００の部位に支持されている。【選択図】図５
STEEL BRIDGE WIDENING INSTALLATION DEVICE AND STEEL BRIDGE WIDENING INSTALLATION METHOD
鋼橋拡幅架設装置および鋼橋拡幅架設工法
IWAKAWA TAKASHI (author) / ABE KENJI (author) / TOYOZUMI JIRO (author) / FUKAYA MICHIO (author) / ONISHI TATSUYA (author) / TAKAHASHI KUNIHIRO (author)
2019-07-18
Patent
Electronic Resource
Japanese
IPC:
E01D
BRIDGES
,
Brücken
Widening steel and concrete bridge
Engineering Index Backfile | 1942
Online Contents | 1998