A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
STEEL-CONCRETE COMPOSITE RAHMEN BRIDGE AND CONSTRUCTION METHOD THEREOF
The present invention relates to a steel composite rigid-frame bridge, and a manufacturing and construction method for the same. According to the present invention, the steel composite rigid-frame bridge comprises: a pair of walls (100); a steel girder (200) connected to an upper part of the wall (100) to have a protrusion unit (210) protruding outside of the pair of walls (100); a concrete slab (300) composed with the steel girder (200) as concrete is placed thereon; and a connection slab (400) integrally connected to both ends of the steel girder (200) when the concrete slab (300) is formed. An existing rigid-frame bridge has a thick wall as a maximum moment is generated in a corner unit (connection unit of the wall and an upper structure) and a height of a corner unit girder becomes higher. Moreover, the rigid-frame bridge and the connection slab are not in an integrated structure; thus damage such as partial subsidence of the connection slab and a reflection crack of asphalt pavement may be generated in the connection unit of the connection slab and the rigid-frame bridge. However, in accordance with the present invention, the steel composite rigid-frame bridge has the protrusion unit (210) protruding to the outside of the wall (100); thereby being able to reduce the moment generated in the corner unit. Also, the connection slab (400) is connected to both ends of the steel girder (200) when the concrete is placed to form the concrete slab (300) such that damage to the connection unit is prevented.
본 발명에 의한 강합성라멘교는 한 쌍의 벽체(100); 한 쌍의 벽체(100) 외측으로 돌출된 돌출부(210)가 형성되도록 벽체(100) 상부에 결합되는 강재거더(200); 콘크리트를 타설하여 강재거더(200)와 합성되도록 형성되는 콘크리트바닥판(300); 콘크리트바닥판(300) 형성시 강재거더(200)의 양단부에 일체로 결합되도록 형성되는 접속슬래브(400);를 포함한다.기존 라멘교는 우각부(벽체와 상부구조물의 결합부)에 최대 모멘트가 발생하기 때문에 벽체의 두께가 두꺼워지고, 우각부 거더의 형고가 높아지게 된다. 뿐만아니라 라멘교와 접속슬래브가 일체화 구조가 아니기 때문에 접속슬래브와 라멘교의 결합부에서 접속슬래브의 부분침하 및 아스팔트 포장의 반사균열 등의 손상이 발생한다.그러나 본 발명의 강합성라멘교는 벽체(100) 외측으로 돌출된 돌출부(210)가 형성되어 있기 때문에 우각부에 발생하는 모멘트를 줄일 수 있다.또한, 접속슬래브(400)가 콘크리트바닥판(300)형성을 위한 콘크리트 타설 시, 강재거더(200)의 양 단부에 결합되기 때문에 접속부의 손상을 방지한다.
STEEL-CONCRETE COMPOSITE RAHMEN BRIDGE AND CONSTRUCTION METHOD THEREOF
The present invention relates to a steel composite rigid-frame bridge, and a manufacturing and construction method for the same. According to the present invention, the steel composite rigid-frame bridge comprises: a pair of walls (100); a steel girder (200) connected to an upper part of the wall (100) to have a protrusion unit (210) protruding outside of the pair of walls (100); a concrete slab (300) composed with the steel girder (200) as concrete is placed thereon; and a connection slab (400) integrally connected to both ends of the steel girder (200) when the concrete slab (300) is formed. An existing rigid-frame bridge has a thick wall as a maximum moment is generated in a corner unit (connection unit of the wall and an upper structure) and a height of a corner unit girder becomes higher. Moreover, the rigid-frame bridge and the connection slab are not in an integrated structure; thus damage such as partial subsidence of the connection slab and a reflection crack of asphalt pavement may be generated in the connection unit of the connection slab and the rigid-frame bridge. However, in accordance with the present invention, the steel composite rigid-frame bridge has the protrusion unit (210) protruding to the outside of the wall (100); thereby being able to reduce the moment generated in the corner unit. Also, the connection slab (400) is connected to both ends of the steel girder (200) when the concrete is placed to form the concrete slab (300) such that damage to the connection unit is prevented.
본 발명에 의한 강합성라멘교는 한 쌍의 벽체(100); 한 쌍의 벽체(100) 외측으로 돌출된 돌출부(210)가 형성되도록 벽체(100) 상부에 결합되는 강재거더(200); 콘크리트를 타설하여 강재거더(200)와 합성되도록 형성되는 콘크리트바닥판(300); 콘크리트바닥판(300) 형성시 강재거더(200)의 양단부에 일체로 결합되도록 형성되는 접속슬래브(400);를 포함한다.기존 라멘교는 우각부(벽체와 상부구조물의 결합부)에 최대 모멘트가 발생하기 때문에 벽체의 두께가 두꺼워지고, 우각부 거더의 형고가 높아지게 된다. 뿐만아니라 라멘교와 접속슬래브가 일체화 구조가 아니기 때문에 접속슬래브와 라멘교의 결합부에서 접속슬래브의 부분침하 및 아스팔트 포장의 반사균열 등의 손상이 발생한다.그러나 본 발명의 강합성라멘교는 벽체(100) 외측으로 돌출된 돌출부(210)가 형성되어 있기 때문에 우각부에 발생하는 모멘트를 줄일 수 있다.또한, 접속슬래브(400)가 콘크리트바닥판(300)형성을 위한 콘크리트 타설 시, 강재거더(200)의 양 단부에 결합되기 때문에 접속부의 손상을 방지한다.
STEEL-CONCRETE COMPOSITE RAHMEN BRIDGE AND CONSTRUCTION METHOD THEREOF
강합성라멘교, 그 제작 및 시공방법
JEONG HAE YOUNG (author)
2017-08-10
Patent
Electronic Resource
Korean
IPC:
E01D
BRIDGES
,
Brücken
STEEL-CONCRETE COMPOSITE RAHMEN BRIDGE AND CONSTRUCTION METHOD THEREOF
| European Patent Office | 2019
STEEL-CONCRETE COMPOSITE RAHMEN BRIDGE AND CONSTRUCTION METHOD THEREOF
| European Patent Office | 2018
Composite rahmen bridge construction method thereof and steel girder for composite rahmen bridge
| European Patent Office | 2021
Jack-Up STEEL CONCRETE COMPOSITE RAHMEN BRIDGE AND CONSTRUCTION METHOD THEREOF
| European Patent Office | 2019
Composite rahmen bridge construction method thereof and steel girder for composite rahmen bridge
European Patent Office | 2021