A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
SHEAR REINFORCEMENT CONSTRUCTION METHOD FOR PC BOX GIRDER BRIDGE
To provide a shear reinforcement construction method for a PC box girder bridge which can reliably prevent a pop out accident due to rupturing of a PC steel rod and which can be constructed in a short time and at a low cost.SOLUTION: A shear reinforcement construction method for a PC box girder bridge 1, in which a PC steel rod 14 is arranged in a web part 12 of a box girder and prestressed, includes: a shear reinforcement step of performing a new shear reinforcement on one side or both sides of the web part 12 capable of bearing the shear stress of the web part 12 which the PC steel rod 14 bears; and a prestress releasing step of relaxing or releasing the prestress applied to the PC steel rod 14.SELECTED DRAWING: Figure 3
【課題】ＰＣ鋼棒の断裂による飛び出し事故を確実に防止することができるとともに、施工が短時間で安価に行えるＰＣ箱桁橋のせん断補強工法を提供する。【解決手段】箱桁のウェブ部１２にＰＣ鋼棒１４が配置されてプレストレスが付与されたＰＣ箱桁橋１のせん断補強工法において、ＰＣ鋼棒１４が負担するウェブ部１２のせん断応力を負担可能な新たなせん断補強をウェブ部１２の片側又は両側に行うせん断補強工程と、ＰＣ鋼棒１４に付与されたプレストレスを弛緩もしくは解除するプレストレス解除工程と、を実行する。【選択図】図３
SHEAR REINFORCEMENT CONSTRUCTION METHOD FOR PC BOX GIRDER BRIDGE
To provide a shear reinforcement construction method for a PC box girder bridge which can reliably prevent a pop out accident due to rupturing of a PC steel rod and which can be constructed in a short time and at a low cost.SOLUTION: A shear reinforcement construction method for a PC box girder bridge 1, in which a PC steel rod 14 is arranged in a web part 12 of a box girder and prestressed, includes: a shear reinforcement step of performing a new shear reinforcement on one side or both sides of the web part 12 capable of bearing the shear stress of the web part 12 which the PC steel rod 14 bears; and a prestress releasing step of relaxing or releasing the prestress applied to the PC steel rod 14.SELECTED DRAWING: Figure 3
【課題】ＰＣ鋼棒の断裂による飛び出し事故を確実に防止することができるとともに、施工が短時間で安価に行えるＰＣ箱桁橋のせん断補強工法を提供する。【解決手段】箱桁のウェブ部１２にＰＣ鋼棒１４が配置されてプレストレスが付与されたＰＣ箱桁橋１のせん断補強工法において、ＰＣ鋼棒１４が負担するウェブ部１２のせん断応力を負担可能な新たなせん断補強をウェブ部１２の片側又は両側に行うせん断補強工程と、ＰＣ鋼棒１４に付与されたプレストレスを弛緩もしくは解除するプレストレス解除工程と、を実行する。【選択図】図３
SHEAR REINFORCEMENT CONSTRUCTION METHOD FOR PC BOX GIRDER BRIDGE
ＰＣ箱桁橋のせん断補強工法
TOYODA YUSUKE (author) / OGATA TATSUO (author) / SHOJI AKIO (author) / TAKAHASHI KENICHI (author)
2020-07-02
Patent
Electronic Resource
Japanese
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