A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
EARTHQUAKE RESISTANT REINFORCEMENT METHOD FOR BRIDGE PIER FOUNDATION AND EARTHQUAKE RESISTANT REINFORCEMENT METHOD FOR BRIDGE PIER
To provide a method capable of supplying an earthquake resistant reinforcement for a bridge pier foundation and a bridge pier of a bridge having a bridge pier installed in a narrow width area such as a median strip.SOLUTION: A method comprises: a process for installing a plurality of steel pipe sheet piles 18, 19 in the same direction from near both end parts in the bridge axis crossover direction of a foundation 12; a process for forming a hole 17 which penetrates the steel pipe sheet piles 18, 19 and the foundation 12 in the bridge axis crossover direction; a process for inserting a PC steel member 21 into the hole 17 and disposing a concrete form 20 so as to surround the steel pipe sheet piles 18, 19 and the foundation 12 on the outer periphery thereof; and a process for placing concrete in the concrete form 20 and then introducing prestress into the concrete by applying tension to the PC steel member 21 after hardening.SELECTED DRAWING: Figure 3
【課題】中央分離帯のように幅が狭い区域に橋脚が設置されている橋梁において、その橋脚基礎及び橋脚の耐震補強を施すことができる方法を提供する。【解決手段】基礎１２の橋軸交差方向両端部近くから、複数の鋼管矢板１８、１９を同方向に沿って設置する工程と、鋼管矢板１８、１９及び基礎１２に橋軸交差方向に貫通する孔１７を形成する工程と、孔１７にＰＣ鋼材２１を挿入するとともに、鋼管矢板１８、１９及び基礎１２の外周にこれらを包囲するように型枠２０を設置する工程と、型枠２０の内方にコンクリートを打設してその硬化後、ＰＣ鋼材２１を緊張させることによりコンクリートにプレストレスを導入する工程とを備えてなる。【選択図】図３
EARTHQUAKE RESISTANT REINFORCEMENT METHOD FOR BRIDGE PIER FOUNDATION AND EARTHQUAKE RESISTANT REINFORCEMENT METHOD FOR BRIDGE PIER
To provide a method capable of supplying an earthquake resistant reinforcement for a bridge pier foundation and a bridge pier of a bridge having a bridge pier installed in a narrow width area such as a median strip.SOLUTION: A method comprises: a process for installing a plurality of steel pipe sheet piles 18, 19 in the same direction from near both end parts in the bridge axis crossover direction of a foundation 12; a process for forming a hole 17 which penetrates the steel pipe sheet piles 18, 19 and the foundation 12 in the bridge axis crossover direction; a process for inserting a PC steel member 21 into the hole 17 and disposing a concrete form 20 so as to surround the steel pipe sheet piles 18, 19 and the foundation 12 on the outer periphery thereof; and a process for placing concrete in the concrete form 20 and then introducing prestress into the concrete by applying tension to the PC steel member 21 after hardening.SELECTED DRAWING: Figure 3
【課題】中央分離帯のように幅が狭い区域に橋脚が設置されている橋梁において、その橋脚基礎及び橋脚の耐震補強を施すことができる方法を提供する。【解決手段】基礎１２の橋軸交差方向両端部近くから、複数の鋼管矢板１８、１９を同方向に沿って設置する工程と、鋼管矢板１８、１９及び基礎１２に橋軸交差方向に貫通する孔１７を形成する工程と、孔１７にＰＣ鋼材２１を挿入するとともに、鋼管矢板１８、１９及び基礎１２の外周にこれらを包囲するように型枠２０を設置する工程と、型枠２０の内方にコンクリートを打設してその硬化後、ＰＣ鋼材２１を緊張させることによりコンクリートにプレストレスを導入する工程とを備えてなる。【選択図】図３
EARTHQUAKE RESISTANT REINFORCEMENT METHOD FOR BRIDGE PIER FOUNDATION AND EARTHQUAKE RESISTANT REINFORCEMENT METHOD FOR BRIDGE PIER
橋脚基礎の耐震補強方法及び橋脚の耐震補強方法
SUMIYA TSUTOMU (author)
2019-01-24
Patent
Electronic Resource
Japanese
| European Patent Office | 2016
EARTHQUAKE-RESISTANT STRUCTURE AND EARTHQUAKE REINFORCEMENT METHOD FOR PILE TYPE PIER
| European Patent Office | 2020