A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
FIXTURE REINFORCEMENT STRUCTURE AND FIXTURE REINFORCEMENT METHOD
PROBLEM TO BE SOLVED: To provide a fixture reinforcement structure, which is free from improper placement, capable of withstanding split tensile stress acting on a concrete part around a fixture of a PC (press concrete) structure with excellent toughness by setting a proper reinforcement ratio, and a fixture reinforcement method.SOLUTION: A fixture reinforcement structure 1 is used for preventing split tensile stress which acts around an anchorage device 4 of a PC structure A. A spiral reinforcement 5 which has a spiral shape is set from one reinforcement around the anchorage device 4 in a double winding manner so that the outer periphery surfaces of the spiral neighboring reinforcements are in contact with each other two times or more near ends at the outer surface; and the rest of which is formed so that the outer periphery surfaces of the spiral neighboring reinforcements are separated from each other.SELECTED DRAWING: Figure 1
【課題】ＰＣ構造物の定着具周りのコンクリート部分に作用する割裂引張応力に対抗できるとともに、鉄筋比を適切として打設不良のおそれが少なく、優れた靭性を発揮することができる定着具補強構造及び定着具補強方法を提供する。【解決手段】ＰＣ構造物Ａの定着具４周りに作用する割裂引張応力に対抗するための定着具補強構造１において、定着具４を取り囲むように螺旋状のスパイラル筋５を配置し、このスパイラル筋５を、１本の鉄筋から、外表面側の端部付近が、螺旋状の隣接する鉄筋同士の外周面が２周以上に亘り接触するように二重巻きとしたうえ、残りの部分が、螺旋状の隣接する鉄筋同士の外周面が離間するように形成する。【選択図】図１
FIXTURE REINFORCEMENT STRUCTURE AND FIXTURE REINFORCEMENT METHOD
PROBLEM TO BE SOLVED: To provide a fixture reinforcement structure, which is free from improper placement, capable of withstanding split tensile stress acting on a concrete part around a fixture of a PC (press concrete) structure with excellent toughness by setting a proper reinforcement ratio, and a fixture reinforcement method.SOLUTION: A fixture reinforcement structure 1 is used for preventing split tensile stress which acts around an anchorage device 4 of a PC structure A. A spiral reinforcement 5 which has a spiral shape is set from one reinforcement around the anchorage device 4 in a double winding manner so that the outer periphery surfaces of the spiral neighboring reinforcements are in contact with each other two times or more near ends at the outer surface; and the rest of which is formed so that the outer periphery surfaces of the spiral neighboring reinforcements are separated from each other.SELECTED DRAWING: Figure 1
【課題】ＰＣ構造物の定着具周りのコンクリート部分に作用する割裂引張応力に対抗できるとともに、鉄筋比を適切として打設不良のおそれが少なく、優れた靭性を発揮することができる定着具補強構造及び定着具補強方法を提供する。【解決手段】ＰＣ構造物Ａの定着具４周りに作用する割裂引張応力に対抗するための定着具補強構造１において、定着具４を取り囲むように螺旋状のスパイラル筋５を配置し、このスパイラル筋５を、１本の鉄筋から、外表面側の端部付近が、螺旋状の隣接する鉄筋同士の外周面が２周以上に亘り接触するように二重巻きとしたうえ、残りの部分が、螺旋状の隣接する鉄筋同士の外周面が離間するように形成する。【選択図】図１
FIXTURE REINFORCEMENT STRUCTURE AND FIXTURE REINFORCEMENT METHOD
定着具補強構造及び定着具補強方法
TACHIBANA HIROSHI (author) / HATTORI AKIYUKI (author) / OKA KEISUKE (author) / YOSHIKAWA NAOKI (author) / FUKUDA AKIYOSHI (author) / YAMAYA YOSHIHIRO (author)
2017-04-13
Patent
Electronic Resource
Japanese
MAIN REINFORCEMENT FIXTURE AND MAIN REINFORCEMENT STRUCTURE
| European Patent Office | 2023