A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
BRIDGE REBUILDING AND CONSTRUCTION METHOD
To provide a bridge rebuilding method and a construction method that can simply and accurately adjust the weight balance on piers when rebuilding or newly constructing a superstructure by half-section construction.SOLUTION: In a bridge rebuilding method where a superstructure (girders 12, slabs 11) which is supported by a T-shaped pier 13 that consists of a single vertical column part 14 and a column head part 15 extending perpendicularly to the bridge axis is rebuilt in a half-section by half-section sequence, a beam 17 is placed near the column head part 15, with an extension part 17a of the beam 17 protruding in the extension direction of the column head part 15 on the removal side, and a counterweight 19 is placed on the extension part 17a, and the weight balance on the pier is adjusted by changing the distance from the bridge axis to the center of gravity of the counterweight 19 according to the progress of the superstructure removal work, etc.SELECTED DRAWING: Figure 1
【課題】半断面施工によって上部工を架け替え又は新設する際に、橋脚上の重量バランスを簡単かつ的確に調整することができる橋梁の架替方法及び架設方法を提供する。【解決手段】一本の垂直な柱部１４と、橋軸直角方向へ延在する柱頭部１５とによって構成されるＴ型の橋脚１３によって支持される上部工（桁１２、床版１１）を、半断面ずつ順番に架け替える方法において、柱頭部１５の近傍位置に梁材１７を配置し、梁材１７の延長部１７ａが、撤去側において柱頭部１５の延長方向へ突出した状態とし、延長部１７ａの上にカウンターウェイト１９を載置し、上部工の撤去作業等の進行に応じて、橋軸からカウンターウェイト１９の重心位置までの距離を変化させることにより、橋脚上の重量バランスを調整する。【選択図】図１
BRIDGE REBUILDING AND CONSTRUCTION METHOD
To provide a bridge rebuilding method and a construction method that can simply and accurately adjust the weight balance on piers when rebuilding or newly constructing a superstructure by half-section construction.SOLUTION: In a bridge rebuilding method where a superstructure (girders 12, slabs 11) which is supported by a T-shaped pier 13 that consists of a single vertical column part 14 and a column head part 15 extending perpendicularly to the bridge axis is rebuilt in a half-section by half-section sequence, a beam 17 is placed near the column head part 15, with an extension part 17a of the beam 17 protruding in the extension direction of the column head part 15 on the removal side, and a counterweight 19 is placed on the extension part 17a, and the weight balance on the pier is adjusted by changing the distance from the bridge axis to the center of gravity of the counterweight 19 according to the progress of the superstructure removal work, etc.SELECTED DRAWING: Figure 1
【課題】半断面施工によって上部工を架け替え又は新設する際に、橋脚上の重量バランスを簡単かつ的確に調整することができる橋梁の架替方法及び架設方法を提供する。【解決手段】一本の垂直な柱部１４と、橋軸直角方向へ延在する柱頭部１５とによって構成されるＴ型の橋脚１３によって支持される上部工（桁１２、床版１１）を、半断面ずつ順番に架け替える方法において、柱頭部１５の近傍位置に梁材１７を配置し、梁材１７の延長部１７ａが、撤去側において柱頭部１５の延長方向へ突出した状態とし、延長部１７ａの上にカウンターウェイト１９を載置し、上部工の撤去作業等の進行に応じて、橋軸からカウンターウェイト１９の重心位置までの距離を変化させることにより、橋脚上の重量バランスを調整する。【選択図】図１
BRIDGE REBUILDING AND CONSTRUCTION METHOD
橋梁の架替方法、及び、架設方法
TERASHIMA TARO (author) / ISHIKAWA MAKOTO (author) / NAKAO YUICHIRO (author)
2024-08-15
Patent
Electronic Resource
Japanese
IPC:
E01D
BRIDGES
,
Brücken
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