A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
METHOD FOR REPLACING BRIDGE BEARING
To provide a method for replacing bridge bearing capable of safely performing work even when a superstructure is lifted to replace a plurality of consecutively arranged bearings at once.SOLUTION: A method of replacing bearings 10 that constitute a bridge by lifting a bridge superstructure 102 having girders spanning a plurality of bridge piers 100 with a hydraulic jack 14 in which: a displacement restricting bracket 18 is extended vertically downward from the lower surface of a main structure located at the bottom of the bridge with the installation position of the bearings 10 as a base point; the superstructure 102 is lifted and lowered by the hydraulic jack 14 while restricting the change in the distance between the displacement restricting bracket 18 and the bridge pier 100 on which the bearings 10 are arranged via a hydraulic jack 22; and the replacement work for multiple bearings 10 is performed in a single lifting operation.SELECTED DRAWING: Figure 1
【課題】上部工を持ち上げて連続配置された複数の支承を一度に取り替える場合であっても、安全に作業を行うことのできる橋梁の支承取替工法を提供する。【解決手段】複数の橋脚１００に掛け渡された桁を持つ橋梁の上部工１０２を油圧ジャッキ１４に持ち上げて橋梁を構成する支承１０の取替を行う工法であって、支承１０の設置位置を基点として橋梁の下部に位置する主構造の下面から鉛直下方向に向けて変位制限ブラケット１８を延設し、油圧ジャッキ２２を介して、変位制限ブラケット１８と、支承１０が配置されている橋脚１００との間隔の変化を抑制した状態で、油圧ジャッキ１４による上部工１０２の昇降を行い、複数の支承１０の取替作業を一度の昇降作業の中で行うことを特徴とする。【選択図】図１
METHOD FOR REPLACING BRIDGE BEARING
To provide a method for replacing bridge bearing capable of safely performing work even when a superstructure is lifted to replace a plurality of consecutively arranged bearings at once.SOLUTION: A method of replacing bearings 10 that constitute a bridge by lifting a bridge superstructure 102 having girders spanning a plurality of bridge piers 100 with a hydraulic jack 14 in which: a displacement restricting bracket 18 is extended vertically downward from the lower surface of a main structure located at the bottom of the bridge with the installation position of the bearings 10 as a base point; the superstructure 102 is lifted and lowered by the hydraulic jack 14 while restricting the change in the distance between the displacement restricting bracket 18 and the bridge pier 100 on which the bearings 10 are arranged via a hydraulic jack 22; and the replacement work for multiple bearings 10 is performed in a single lifting operation.SELECTED DRAWING: Figure 1
【課題】上部工を持ち上げて連続配置された複数の支承を一度に取り替える場合であっても、安全に作業を行うことのできる橋梁の支承取替工法を提供する。【解決手段】複数の橋脚１００に掛け渡された桁を持つ橋梁の上部工１０２を油圧ジャッキ１４に持ち上げて橋梁を構成する支承１０の取替を行う工法であって、支承１０の設置位置を基点として橋梁の下部に位置する主構造の下面から鉛直下方向に向けて変位制限ブラケット１８を延設し、油圧ジャッキ２２を介して、変位制限ブラケット１８と、支承１０が配置されている橋脚１００との間隔の変化を抑制した状態で、油圧ジャッキ１４による上部工１０２の昇降を行い、複数の支承１０の取替作業を一度の昇降作業の中で行うことを特徴とする。【選択図】図１
METHOD FOR REPLACING BRIDGE BEARING
橋梁の支承取替工法
TAKADA KOSHIRO (author) / WATANABE YOJI (author) / ASANO KOICHI (author) / KANEMITSU KOJI (author) / INOUE DAICHI (author) / ETO SHIGEMI (author) / MOROTO KEIICHI (author) / KAWANO YASUKUNI (author)
2020-08-13
Patent
Electronic Resource
Japanese
IPC:
E01D
BRIDGES
,
Brücken
Method of Replacing Bearing for Bridge and Bearing Structure
European Patent Office | 2020
Method of Replacing Bearing for Bridge and Bearing Structure
| European Patent Office | 2019
NON-SLIP ANCHOR SOCKET FOR BRIDGE BEARING AND METHOD FOR REPLACING BRIDGE BEARING USING THE SAME
| European Patent Office | 2021