BENDING REINFORCEMENT METHOD AND BENDING REINFORCEMENT STRUCTURE OF CONCRETE STRUCTURE

• Main Authors: DOKEN KATSUYUKI, INOUE KAZUO
• Format: Patent
• Language: English; Japanese
• Published: 10.06.2021
• Subjects: BUILDING; BUILDING IMPLEMENTS OR OTHER BUILDING AIDS, OR THEIRUSE; EARTH DRILLING; FIXED CONSTRUCTIONS; FORMS; GALLERIES; HANDLING BUILDING MATERIALS ON THE SITE; LARGE UNDERGROUND CHAMBERS; MINING; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTINGBUILDINGS; SCAFFOLDING; SHAFTS; SHUTTERING; TUNNELS

To provide a bending reinforcement method and a bending reinforcement structure of a concrete structure which can increase the bending rigidity and bending resistance of a concrete member base part in a joint part of a concrete member where the maximum bending moment is generated and can perform the bending reinforcement of the base part extremely effectively and with a simple method.SOLUTION: In a concrete structure 100 having a first concrete member 120A and a second concrete member 130A joined to the first concrete member 120A, a continuous fiber-reinforced member 1 is impregnated with resin, an attachment part 1a on one side of the continuous fiber-reinforced member 1 is embedded to an attachment hole part 10 formed adjacently to a base part 102A of the first concrete member 120A, a fixation part 1b on the other side is fixed to the first concrete member 120A, the bending reinforcement of the first concrete member base part 102A is performed by curing the resin, and the Young's modulus of the continuous fiber-reinforced member 1 where the resin is cured is 70 to 720 GPa.SELECTED DRAWING: Figure 1 【課題】最大曲げモーメントが生じるコンクリート部材の接合部におけるコンクリート部材基部の曲げ剛性、曲げ耐力を増大させ、基部の曲げ補強を極めて有効にしかも簡易な方法でなし得るコンクリート構造物の曲げ補強方法及び曲げ補強構造を提供する。【解決手段】第１のコンクリート部材１２０Ａと、第１のコンクリート部材１２０Ａと接合された第２のコンクリート部材１３０Ａとを有するコンクリート構造物１００において、連続繊維補強部材１に樹脂を含浸させ、連続繊維補強部材１の一側の取付部１ａを、第１のコンクリート部材１２０Ａの基部１０２Ａに隣接して形成した取付孔部１０に埋め込み、他側の定着部１ｂを第１のコンクリート部材１２０Ａに定着し、樹脂を硬化して第１のコンクリート部材基部１０２Ａの曲げ補強を行い、樹脂が硬化された連続繊維補強部材１は、ヤング率が７０〜７２０ＧＰａである。【選択図】図１