Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
BRIDGE REPLACEMENT METHOD AND BRIDGE UPPER STRUCTURE
To provide a bridge replacement method that can be applied even when the construction conditions under the bridge are severe.SOLUTION: The replacement of an existing bridge 10 with a new bridge 20 is performed as follows. Rail-shaped first connection means 31 extending in a direction of the bridge axis is provided on a lower surface side of a new bridge upper structure 21. The new bridge upper structure 21 is carried in using an upper surface of the existing bridge upper structure as a carrying path, and the new bridge superstructure 21 is temporarily installed on an upper part of the existing bridge upper structure to temporarily support both ends via a temporary vent. The first connection means 31 is connected to second connection means 32 being a hanging rod, an existing bridge upper structure removal equivalent part 11A is suspended and supported by the new bridge upper structure 21 via the second connection means 32, the existing bridge upper structure is cut to form a removal block 11A, and the removal block 11A is lifted and slid through the first connection means 31 to be removed. The removal block 11A is repeatedly formed to remove the existing bridge upper structure, and existing bridge piers are removed in the same manner. The new bridge upper structure 21 is then lowered and installed.SELECTED DRAWING: Figure 1
【課題】橋梁下の施工条件が厳しい場合にも適用可能な橋梁の架替工法を提供する。【解決手段】既設橋梁１０を以下の手順により新設橋梁２０に架け替える。新設橋梁上部構造２１の下面側に橋軸方向に延設されているレール状の第１接続手段３１が設けられる。既設橋梁上部構造上面を搬路として新設橋梁上部構造２１を搬入し既設橋梁上部構造の上部に新設橋梁上部構造２１を仮設し仮設ベントを介して両端を仮支持する。第１接続手段３１と吊ロッドである第２接続手段３２を接続し第２接続手段３２を介して既設橋梁上部構造撤去相当部１１Ａを新設橋梁上部構造２１に吊支持させ既設橋梁上部構造を切断し撤去ブロック１１Ａとし撤去ブロック１１Ａを吊り上げ第１接続手段３１を介して摺動させ撤去する。撤去ブロック１１Ａ撤去を繰り返し既設橋梁上部構造を撤去し同様に既設橋脚を撤去する。新設橋梁上部構造２１を降下させ本設する。【選択図】図１
BRIDGE REPLACEMENT METHOD AND BRIDGE UPPER STRUCTURE
To provide a bridge replacement method that can be applied even when the construction conditions under the bridge are severe.SOLUTION: The replacement of an existing bridge 10 with a new bridge 20 is performed as follows. Rail-shaped first connection means 31 extending in a direction of the bridge axis is provided on a lower surface side of a new bridge upper structure 21. The new bridge upper structure 21 is carried in using an upper surface of the existing bridge upper structure as a carrying path, and the new bridge superstructure 21 is temporarily installed on an upper part of the existing bridge upper structure to temporarily support both ends via a temporary vent. The first connection means 31 is connected to second connection means 32 being a hanging rod, an existing bridge upper structure removal equivalent part 11A is suspended and supported by the new bridge upper structure 21 via the second connection means 32, the existing bridge upper structure is cut to form a removal block 11A, and the removal block 11A is lifted and slid through the first connection means 31 to be removed. The removal block 11A is repeatedly formed to remove the existing bridge upper structure, and existing bridge piers are removed in the same manner. The new bridge upper structure 21 is then lowered and installed.SELECTED DRAWING: Figure 1
【課題】橋梁下の施工条件が厳しい場合にも適用可能な橋梁の架替工法を提供する。【解決手段】既設橋梁１０を以下の手順により新設橋梁２０に架け替える。新設橋梁上部構造２１の下面側に橋軸方向に延設されているレール状の第１接続手段３１が設けられる。既設橋梁上部構造上面を搬路として新設橋梁上部構造２１を搬入し既設橋梁上部構造の上部に新設橋梁上部構造２１を仮設し仮設ベントを介して両端を仮支持する。第１接続手段３１と吊ロッドである第２接続手段３２を接続し第２接続手段３２を介して既設橋梁上部構造撤去相当部１１Ａを新設橋梁上部構造２１に吊支持させ既設橋梁上部構造を切断し撤去ブロック１１Ａとし撤去ブロック１１Ａを吊り上げ第１接続手段３１を介して摺動させ撤去する。撤去ブロック１１Ａ撤去を繰り返し既設橋梁上部構造を撤去し同様に既設橋脚を撤去する。新設橋梁上部構造２１を降下させ本設する。【選択図】図１
BRIDGE REPLACEMENT METHOD AND BRIDGE UPPER STRUCTURE
橋梁の架替工法および橋梁上部構造
OBA KOSHO (Autor:in) / ISHIBASHI TADAYOSHI (Autor:in) / SHIMIZU MITSURU (Autor:in)
01.04.2021
Patent
Elektronische Ressource
Japanisch
IPC:
E01D
BRIDGES
,
Brücken
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