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RAHMEN BRIDGE AND CONSTRUCTION METHOD THEREOF
The prestressed Ramen bridge of the present invention comprises: a steel girder (100); a support member (200) protruding downward from the lower surface of both side edges of the steel girder (100); a temporary inclination support member (300) installed at each of both sides edges of the steel girder (100) in order to temporarily reinforce a corner part (B), and having both ends respectively coupled to the lower surface of the steel girder (100) and the inner surface of the support member (200) to be installed in a slope structure; a bent tendon (400) installed at both side edges of the steel girder (100) to reduce a moment generated in the corner part (B) and coupled along the outer surface of the support member (200) and the upper surface of the steel girder (100); a concrete wall (500) formed at the lower side of the support member (200) to support the support member (200); and concrete (C) deposited to form a bottom plate (1). The concrete (C) is deposited so that the steel girder (100), the support member (200), the tendon (400), and the both edges of the temporary inclination support member (300) are buried. As shown in FIG. 5, since the inclination support member (300) is coupled to the steel girder (100) and the support member (200), the prestressed Ramen bridge of the present invention improves rigidity of the corner part. In addition, since the bent tendon (400) is installed on the upper surface of the steel girder (100) and the outer surface of the support member (200) and is tensioned, a bending moment of the corner part generated due to the dead load of the steel girder (100) and the weight of concrete deposited to form the bottom plate (1) can be reduced.
본 발명의 프리스트레스트 라멘교는 강재거더(100); 강재거더(100)의 양측방 가장자리 하면에서 하측으로 돌출 형성된 받침부재(200); 우각부(B)를 임시 보강하기 위해, 강재거더(100)의 양측방 가장자리에 각각 설치되되, 강재거더(100)의 하면과 받침부재(200)의 내측면에 양단부가 각각 결합되어 경사구조로 설치되는 임시경사지지부재(300); 우각부(B)에 발생하는 모멘트를 감소시키기 위해, 강재거더(100)의 양측방 가장자리에 각각 설치되되, 강재거더(100)의 상면과 받침부재(200)의 외측면을 따라 결합되는 절곡형 긴장재(400); 받침부재(200)를 지지하도록 받침부재(200)의 하측에 형성된 콘크리트 벽체(500); 바닥판(1) 형성을 위해 타설되는 콘크리트(C);를 포함하되, 콘크리트(C)는 강재거더(100), 받침부재(200), 긴장재(400) 및 임시경사지지부재(300)의 양가장자리가 매립되도록 타설된다. 도 5와 같이 본 발명의 프리스트레스트 라멘교는 경사지지부재(300)가 강재거더(100)와 받침부재(200)에 결합되기 때문에 우각부의 강성을 증대시킨다. 또한, 절곡형 긴장재(400)가 강재거더(100)의 상면과 받침부재(200)의 외측면에 설치되어 긴장되기 때문에 강재거더(100)의 자중 및 바닥판(1) 형성을 위해 타설되는 콘크리트(C) 중량으로 인해 발생하는 우각부의 휨모멘트를 감소시킬 수 있다.
RAHMEN BRIDGE AND CONSTRUCTION METHOD THEREOF
The prestressed Ramen bridge of the present invention comprises: a steel girder (100); a support member (200) protruding downward from the lower surface of both side edges of the steel girder (100); a temporary inclination support member (300) installed at each of both sides edges of the steel girder (100) in order to temporarily reinforce a corner part (B), and having both ends respectively coupled to the lower surface of the steel girder (100) and the inner surface of the support member (200) to be installed in a slope structure; a bent tendon (400) installed at both side edges of the steel girder (100) to reduce a moment generated in the corner part (B) and coupled along the outer surface of the support member (200) and the upper surface of the steel girder (100); a concrete wall (500) formed at the lower side of the support member (200) to support the support member (200); and concrete (C) deposited to form a bottom plate (1). The concrete (C) is deposited so that the steel girder (100), the support member (200), the tendon (400), and the both edges of the temporary inclination support member (300) are buried. As shown in FIG. 5, since the inclination support member (300) is coupled to the steel girder (100) and the support member (200), the prestressed Ramen bridge of the present invention improves rigidity of the corner part. In addition, since the bent tendon (400) is installed on the upper surface of the steel girder (100) and the outer surface of the support member (200) and is tensioned, a bending moment of the corner part generated due to the dead load of the steel girder (100) and the weight of concrete deposited to form the bottom plate (1) can be reduced.
본 발명의 프리스트레스트 라멘교는 강재거더(100); 강재거더(100)의 양측방 가장자리 하면에서 하측으로 돌출 형성된 받침부재(200); 우각부(B)를 임시 보강하기 위해, 강재거더(100)의 양측방 가장자리에 각각 설치되되, 강재거더(100)의 하면과 받침부재(200)의 내측면에 양단부가 각각 결합되어 경사구조로 설치되는 임시경사지지부재(300); 우각부(B)에 발생하는 모멘트를 감소시키기 위해, 강재거더(100)의 양측방 가장자리에 각각 설치되되, 강재거더(100)의 상면과 받침부재(200)의 외측면을 따라 결합되는 절곡형 긴장재(400); 받침부재(200)를 지지하도록 받침부재(200)의 하측에 형성된 콘크리트 벽체(500); 바닥판(1) 형성을 위해 타설되는 콘크리트(C);를 포함하되, 콘크리트(C)는 강재거더(100), 받침부재(200), 긴장재(400) 및 임시경사지지부재(300)의 양가장자리가 매립되도록 타설된다. 도 5와 같이 본 발명의 프리스트레스트 라멘교는 경사지지부재(300)가 강재거더(100)와 받침부재(200)에 결합되기 때문에 우각부의 강성을 증대시킨다. 또한, 절곡형 긴장재(400)가 강재거더(100)의 상면과 받침부재(200)의 외측면에 설치되어 긴장되기 때문에 강재거더(100)의 자중 및 바닥판(1) 형성을 위해 타설되는 콘크리트(C) 중량으로 인해 발생하는 우각부의 휨모멘트를 감소시킬 수 있다.
RAHMEN BRIDGE AND CONSTRUCTION METHOD THEREOF
프리스트레스트 라멘교 및 그 제작방법
CHA YONG SIK (author)
2019-02-20
Patent
Electronic Resource
Korean
IPC:
E01D
BRIDGES
,
Brücken
Composite rahmen bridge construction method thereof and steel girder for composite rahmen bridge
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