Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
BRIDGE FOOTING REPLACEMENT METHOD
PROBLEM TO BE SOLVED: To provide a bridge footing replacement method capable of improving safety of a replacement work and reducing construction cost.SOLUTION: A bridge footing replacement method according to this invention comprises following processes to: form a foundation 12 of an overhanging bridge footing 10 between a pair of single pole bridge footing 11, which support an upper structure, and form a beam part 16 shorter than a distance between the pair of single pole bridge footing 11 above the foundation 12; hang a pair of extension beams 20 with an open hole 18 into which the single pole bridge footing 11 is inserted along a longer direction of the single pole bridge footing 11 and connect the extension beams to both ends of the beam part 16; receive the upper structure 22 by a jack at top faces of the beam part 16 and the extension beams 20 and around an existing bearing of the single pole bridge footing 11; cut the single pole bridge footing 11, remove a lower part of the single pole bridge footing 11 and pull out and remove the tip from the open hole 18; and block the open hole 18 and form a new bearing of the overhanging bridge footing 10 on the top faces of the extension beams 20.SELECTED DRAWING: Figure 1
【課題】交換作業の安全性を高め、かつ施工コストを抑えることができる橋脚の交換方法を提供する。【解決手段】本発明の橋脚の交換方法は、上部構造を支持する一対の単柱式橋脚１１の間に、張出し式橋脚１０の基礎１２と、基礎１２の上方に前記一対の単柱式橋脚１１の橋脚間よりも短い梁部１６を形成する工程と、単柱式橋脚１１が挿通する貫通孔１８を備えた一対の延長梁２０を前記単柱式橋脚１１の長手方向に沿って吊上げて前記梁部１６の両端にそれぞれ接続する工程と、前記梁部１６及び前記延長梁２０の上面、かつ前記単柱式橋脚１１の既存支承の周囲で前記上部構造２２をジャッキ受けする工程と、前記単柱式橋脚１１を切断し、前記単柱式橋脚１１の下部から取り除いて先端を前記貫通孔１８から引き抜いて撤去する工程と、前記貫通孔１８を閉塞して前記延長梁２０の上面に前記張出し式橋脚１０の新規支承を形成する工程と、を有することを特徴としている。【選択図】図１
BRIDGE FOOTING REPLACEMENT METHOD
PROBLEM TO BE SOLVED: To provide a bridge footing replacement method capable of improving safety of a replacement work and reducing construction cost.SOLUTION: A bridge footing replacement method according to this invention comprises following processes to: form a foundation 12 of an overhanging bridge footing 10 between a pair of single pole bridge footing 11, which support an upper structure, and form a beam part 16 shorter than a distance between the pair of single pole bridge footing 11 above the foundation 12; hang a pair of extension beams 20 with an open hole 18 into which the single pole bridge footing 11 is inserted along a longer direction of the single pole bridge footing 11 and connect the extension beams to both ends of the beam part 16; receive the upper structure 22 by a jack at top faces of the beam part 16 and the extension beams 20 and around an existing bearing of the single pole bridge footing 11; cut the single pole bridge footing 11, remove a lower part of the single pole bridge footing 11 and pull out and remove the tip from the open hole 18; and block the open hole 18 and form a new bearing of the overhanging bridge footing 10 on the top faces of the extension beams 20.SELECTED DRAWING: Figure 1
【課題】交換作業の安全性を高め、かつ施工コストを抑えることができる橋脚の交換方法を提供する。【解決手段】本発明の橋脚の交換方法は、上部構造を支持する一対の単柱式橋脚１１の間に、張出し式橋脚１０の基礎１２と、基礎１２の上方に前記一対の単柱式橋脚１１の橋脚間よりも短い梁部１６を形成する工程と、単柱式橋脚１１が挿通する貫通孔１８を備えた一対の延長梁２０を前記単柱式橋脚１１の長手方向に沿って吊上げて前記梁部１６の両端にそれぞれ接続する工程と、前記梁部１６及び前記延長梁２０の上面、かつ前記単柱式橋脚１１の既存支承の周囲で前記上部構造２２をジャッキ受けする工程と、前記単柱式橋脚１１を切断し、前記単柱式橋脚１１の下部から取り除いて先端を前記貫通孔１８から引き抜いて撤去する工程と、前記貫通孔１８を閉塞して前記延長梁２０の上面に前記張出し式橋脚１０の新規支承を形成する工程と、を有することを特徴としている。【選択図】図１
BRIDGE FOOTING REPLACEMENT METHOD
橋脚の交換方法
SOGA AKIRA (Autor:in) / SHIGUMA TAKASHI (Autor:in) / KASAMA SHIGEHIRO (Autor:in) / TAKADA KOSHIRO (Autor:in) / AOYAMA TOMOAKI (Autor:in) / OGATA TATSUO (Autor:in) / KAKIUCHI NORIO (Autor:in) / NISHIURA KOSUKE (Autor:in)
05.09.2016
Patent
Elektronische Ressource
Japanisch
IPC:
E01D
BRIDGES
,
Brücken
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