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A platform for research: civil engineering, architecture and urbanism
Prestressed Concrete Girder having Upper Flange Reinforcement using Loop-type Unbonded Tendon and Manufacturing Method thereof
The present invention relates to a prestressed concrete girder having a reinforcing structure by arranging a loop-type unbonded tendon in an upper flange and a manufacturing method therefor. At a longitudinal end part of a PSC girder having an upper flange, a web, and a lower flange, the unbonded tendon is embedded in the upper flange in a form of a U-shaped loop. An anchor is coupled to a curved unit in a center direction of the unbonded tendon. After the anchor is buried and fixed in the concrete of the PSC girder, the unbonded tendon is tensioned, and a tension force is easily introduced to the upper flange of the longitudinal end and reinforced. An objective of the present invention is to provide a technology capable of solving problems such as cracking due to tensile stress at the longitudinal end part.
본 발명은 상부플랜지, 복부(web) 및 하부플랜지를 가지는 PSC 거더의 종방향 단부에서 상부플랜지 내에 비부착식 긴장재(unbonded tendon)를 영문자 U자의 루프 형태로 매립 배치하며 비부착식 긴장재의 중심방향 곡선부에 앵커를 결합하고 앵커를 PSC 거더의 콘크리트 내에 매립 고정한 후 비부착식 긴장재를 긴장하여 종방향 단부의 상부플랜지에 용이하게 긴장력을 도입하여 보강한 것을 특징으로 하는 "상부플랜지 내의 루프형 비부착식 긴장재 배치에 의한 보강구조를 가지는 프리스트레스트 콘크리트 거더 및 그 제작방법"에 관한 것이다.
Prestressed Concrete Girder having Upper Flange Reinforcement using Loop-type Unbonded Tendon and Manufacturing Method thereof
The present invention relates to a prestressed concrete girder having a reinforcing structure by arranging a loop-type unbonded tendon in an upper flange and a manufacturing method therefor. At a longitudinal end part of a PSC girder having an upper flange, a web, and a lower flange, the unbonded tendon is embedded in the upper flange in a form of a U-shaped loop. An anchor is coupled to a curved unit in a center direction of the unbonded tendon. After the anchor is buried and fixed in the concrete of the PSC girder, the unbonded tendon is tensioned, and a tension force is easily introduced to the upper flange of the longitudinal end and reinforced. An objective of the present invention is to provide a technology capable of solving problems such as cracking due to tensile stress at the longitudinal end part.
본 발명은 상부플랜지, 복부(web) 및 하부플랜지를 가지는 PSC 거더의 종방향 단부에서 상부플랜지 내에 비부착식 긴장재(unbonded tendon)를 영문자 U자의 루프 형태로 매립 배치하며 비부착식 긴장재의 중심방향 곡선부에 앵커를 결합하고 앵커를 PSC 거더의 콘크리트 내에 매립 고정한 후 비부착식 긴장재를 긴장하여 종방향 단부의 상부플랜지에 용이하게 긴장력을 도입하여 보강한 것을 특징으로 하는 "상부플랜지 내의 루프형 비부착식 긴장재 배치에 의한 보강구조를 가지는 프리스트레스트 콘크리트 거더 및 그 제작방법"에 관한 것이다.
Prestressed Concrete Girder having Upper Flange Reinforcement using Loop-type Unbonded Tendon and Manufacturing Method thereof
상부플랜지 내의 루프형 비부착식 긴장재 배치에 의한 보강구조를 가지는 프리스트레스트 콘크리트 거더 및 그 제작방법
SHIM YOUNG PYO (author)
2021-09-17
Patent
Electronic Resource
Korean
IPC:
E04C
STRUCTURAL ELEMENTS
,
Bauelemente
| European Patent Office | 2021
Tendon Stress in Unbonded Partially Prestressed Concrete Beams
| Springer Verlag | 1991
| European Patent Office | 2018
Tendon Stress in Unbonded Partially Prestressed Continuous Concrete Members
| British Library Conference Proceedings | 1996