A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Joint Structure of Circular Hollow Tube Truss and it's Fabrication Method
The present invention relates to a joint structure of a truss using a cast steel partial integration type joint unit comprising an upper and lower chord attaching plate, a diagonal member connector, and an upper and lower chord attaching reinforcing plate in a truss comprising a circular steel pipe; and a manufacturing method for a joint structure of a circular steel pipe truss applied with a cast steel partial integration type joint unit. According to the present invention, the joint structure of the truss can solve difficulty of a complicated manufacture process such as three-dimensional cutting of an end of a diagonal member and can solve structural weakness of degradation of fatigue performance and stress concentration in which large stress of nominal stress or greater is generated in an upper chord connection welding unit or a lower chord connection welding unit, which is connected to the diagonal member, and an end of the diagonal member in a circular steel pipe truss joint unit. Also, an existing cast steel complete integration type joint unit is difficult to obtain economical feasibility by having large steel of the cast steel joint unit, whereas the cast steel partial integration type joint unit reduces the steel of the cast steel consumed to manufacture the joint unit at 30% of the steel of the cast steel complete integration type joint unit. So, the cast steel partial integration type joint unit enables the economical truss structure to be manufactured.
본 발명은, 원형강관으로 구성된 트러스에서 상하현재 부착판, 사재 연결구, 그리고 상하현재 부착 보강판으로 구성된 주강 부분일체형 절점유닛을 사용한 트러스의 절점구조 및 주강 부분일체형 절점유닛을 적용한 원형강관 트러스 제작방법에 관한 것이다. 본 발명을 통해 원형강관 트러스 절점부의 사재 단부 그리고 사재와 연결되는 상현재 또는 하현재 연결 용접부에 공칭응력 이상의 큰 응력이 발생하는 응력집중현상 및 피로성능이 저하되는 구조적 취약점을 극복할 수 있으며 사재 단부의 3차원 절단 등 복잡한 제작공정상의 어려움을 해소할 수 있다. 또한 종래의 주강 완전일체형 절점유닛은 주강 절점유닛의 강중이 커 경제성 확보가 어려웠던 반면 주강 부분일체형 절점유닛을 적용할 시에는 절점유닛 제작에 소요되는 주강 강중이 주강 완전일체형 절점유닛 강중의 30% 수준으로 감소하여 경제적인 트러스 구조물 제작이 가능해지는 장점을 갖는다.
Joint Structure of Circular Hollow Tube Truss and it's Fabrication Method
The present invention relates to a joint structure of a truss using a cast steel partial integration type joint unit comprising an upper and lower chord attaching plate, a diagonal member connector, and an upper and lower chord attaching reinforcing plate in a truss comprising a circular steel pipe; and a manufacturing method for a joint structure of a circular steel pipe truss applied with a cast steel partial integration type joint unit. According to the present invention, the joint structure of the truss can solve difficulty of a complicated manufacture process such as three-dimensional cutting of an end of a diagonal member and can solve structural weakness of degradation of fatigue performance and stress concentration in which large stress of nominal stress or greater is generated in an upper chord connection welding unit or a lower chord connection welding unit, which is connected to the diagonal member, and an end of the diagonal member in a circular steel pipe truss joint unit. Also, an existing cast steel complete integration type joint unit is difficult to obtain economical feasibility by having large steel of the cast steel joint unit, whereas the cast steel partial integration type joint unit reduces the steel of the cast steel consumed to manufacture the joint unit at 30% of the steel of the cast steel complete integration type joint unit. So, the cast steel partial integration type joint unit enables the economical truss structure to be manufactured.
본 발명은, 원형강관으로 구성된 트러스에서 상하현재 부착판, 사재 연결구, 그리고 상하현재 부착 보강판으로 구성된 주강 부분일체형 절점유닛을 사용한 트러스의 절점구조 및 주강 부분일체형 절점유닛을 적용한 원형강관 트러스 제작방법에 관한 것이다. 본 발명을 통해 원형강관 트러스 절점부의 사재 단부 그리고 사재와 연결되는 상현재 또는 하현재 연결 용접부에 공칭응력 이상의 큰 응력이 발생하는 응력집중현상 및 피로성능이 저하되는 구조적 취약점을 극복할 수 있으며 사재 단부의 3차원 절단 등 복잡한 제작공정상의 어려움을 해소할 수 있다. 또한 종래의 주강 완전일체형 절점유닛은 주강 절점유닛의 강중이 커 경제성 확보가 어려웠던 반면 주강 부분일체형 절점유닛을 적용할 시에는 절점유닛 제작에 소요되는 주강 강중이 주강 완전일체형 절점유닛 강중의 30% 수준으로 감소하여 경제적인 트러스 구조물 제작이 가능해지는 장점을 갖는다.
Joint Structure of Circular Hollow Tube Truss and it's Fabrication Method
원형강관 트러스 절점구조 및 제작방법
WOO YOUNG TAEK (author)
2017-12-29
Patent
Electronic Resource
Korean
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