KR960031717A - Prevention method of main girder collapse that occurs when the top of the composite girder is replaced with the precast top - Google Patents

Prevention method of main girder collapse that occurs when the top of the composite girder is replaced with the precast top Download PDF

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Publication number
KR960031717A
KR960031717A KR1019950024255A KR19950024255A KR960031717A KR 960031717 A KR960031717 A KR 960031717A KR 1019950024255 A KR1019950024255 A KR 1019950024255A KR 19950024255 A KR19950024255 A KR 19950024255A KR 960031717 A KR960031717 A KR 960031717A
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South Korea
Prior art keywords
precast
main girder
box
girder
top plate
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KR1019950024255A
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Korean (ko)
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KR0163632B1 (en
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미치야 다카타
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히가키 시게루
쇼본도 겐세쓰 가부시키가이샤
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Publication of KR960031717A publication Critical patent/KR960031717A/en
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Publication of KR0163632B1 publication Critical patent/KR0163632B1/en

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    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
    • E01D22/00—Methods or apparatus for repairing or strengthening existing bridges ; Methods or apparatus for dismantling bridges
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
    • E01D2/00—Bridges characterised by the cross-section of their bearing spanning structure

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Bridges Or Land Bridges (AREA)

Abstract

목적purpose

합성거더 상판을 프리캐스트 상판으로 바꿀 경우의 이미 설치된 합성거더 상판을 철거하고, 프리캐스트 상판을 가설할때의 거더와 프리캐스트 상판을 합성하기전에 생기는 메인거더의 붕괴를 방지함과 동시에 기존의 방지대책에 있어서의 결점을 제거하는 것을 목적으로 한다.When replacing the composite girder top plate with the precast top plate, remove the already installed composite girder top plate and prevent the collapse of the main girder before combining the girder and the precast top plate when constructing the precast top plate. It aims at eliminating the fault in countermeasures.

구성Configuration

프리캐스트 상판에 형성한 상자빼기부를 메인거더의 상플랜지위에 위치시켜서 놓고 메인거더 방향의 상자빼기부 사이를 고정점간 거리로하고 상자빼기부에서 프리캐스트 상판과 메인거더를 임시 고정하고, 프리캐스트 상판의 가설완료후에 고정을 해제하여 상자빼기부에 콘크리트를 타설하는 것을 특징으로 한다.Place the box removing part formed on the precast upper plate on the upper flange of the main girder, and set the distance between the box removing parts in the direction of the main girder to a fixed point distance, and temporarily fix the precast upper plate and the main girder at the box removing part, and precast upper plate After the completion of the hypothesis of releasing the fixing is characterized in that the concrete is poured into the minus the box.

Description

합성거더의 상판을 프리캐스트 상판으로 바꿀때 발생하는 메인거더 붕괴의 방지공법Prevention method of main girder collapse that occurs when the top of the composite girder is replaced with the precast top

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제1도는 본 발명의 실시예 주요부를 도시하는 제4도의 부분 확대도,FIG. 1 is a partially enlarged view of FIG. 4 showing the main part of an embodiment of the present invention;

제2도는 본 발명의 실시예를 도시하는 평면도,2 is a plan view showing an embodiment of the present invention,

제3도는 본 발명의 실시예를 도시하는 측면도,3 is a side view showing an embodiment of the present invention,

제4도는 제3도의 A-A 단면도.4 is a cross-sectional view taken along line A-A of FIG.

제5도는 다른 실시예를 도시하는 단면도로, (A)는 메인거더와 프리캐스트 상판과의 고정전의 설명도, (B)는 메인거더와 프리캐스트 상판의 고정후의 설명도,5 is a cross-sectional view showing another embodiment, (A) is an explanatory diagram before fixing the main girder and the precast top plate, (B) is an explanatory diagram after fixing the main girder and the precast top plate,

제6도는 종래의 가로지지재 증강공법에 있어서의 증설 가로거더와 메인거더의 고정점간 거리를 도시하는 설명도,6 is an explanatory diagram showing the distance between the fixed transverse girder and the fixed point of the main girder in the conventional horizontal support material reinforcement method;

제7도는 프리캐스트 상판에 형성된 상자빼기부(箱拔部)와 메신거더의 고정점간 거리를 도시하는 설명도,FIG. 7 is an explanatory diagram showing the distance between the box removing portion formed on the precast upper plate and the fixed point of the messenger girder;

제8도는 치수를 특정한 메인거더의 개략도,8 is a schematic diagram of a main girder having dimensions,

제9도는 본 발명에 관한 실시예의 시공순서를 나타내는 흐름도.9 is a flowchart showing a construction procedure of an embodiment according to the present invention.

Claims (3)

프리캐스트 상판에 형성한 상자빼기부를 메이거더의 상플랜지위에 위치시켜서 놓고 메인거더 방향의 상자빼기부 사이를 고정점간 거리로하고 상자빼기부에서 프리캐스트 상판과 메인거더를 임시 고정하고, 프리캐스트 상판의 가설완료후에 고정을 해제하여 상자빼기부에 콘크리트를 타설하여 메인거더와 프리캐스트 상판을 합성하는 것을 특징으로 하는 합성거더의 상판을 프리캐시트 상판으로 바꿀때 발생하는 메인거더 붕괴의 방지 공법.Place the box minus part formed on the precast upper plate on the upper flange of the girder, and set the distance between the box miners in the direction of the main girder to a fixed point distance, and temporarily fix the precast plate and the main girder at the box minus part, and precast top plate A method of preventing the collapse of the main girder that occurs when the top of the composite girder is replaced with a pre-catalytic top, characterized by synthesizing the main girder and the precast top by releasing the fixing after completing the construction of the construction. 프리캐스트 상판에 형성한 상자빼기부를 메인거더의 상플랜지위에 위치시켜 놓고 프리캐스트 상판 아래면과 메인거더의 상플랜지 아래면을 판스프링에 의해 체결함과 동시에 메인거더 방향의 상자빼기부 사이를 고정점간 거리로 하고, 상자빼기부 상당부위의 상플랜지위체 형성한 스터드에 임시고정한 고정블록과 상자빼기부 벽면 사이에 플랫잭을 삽입하고, 플랫잭에 압력을 도입함으로써 고정블록과 상자빼기부 벽면을 가압함으로써 프리캐스트 상판과 메인거더를 고정하고, 프리캐스트 상판의 가설완료후에 플랫잭과 고정블록을 제거하여 상자빼기부에 콘크리트를 타설하여 메인거더와 프리캐스트 상판을 합성하는 것을 특징으로 하는 합성거더의 상판을 프리캐스트 상판으로 바꿀때 발생하는 메인거더 붕괴의 방지공법.Place the box removing part formed on the precast upper plate on the upper flange of the main girder, and fasten the lower part of the precast upper plate and the upper flange of the main girder by the plate spring, and fix the gap between the box removing part in the direction of the main girder. Set the distance between the points, and insert the flat jack between the fixed block and the wall out of the box temporarily fixed to the stud formed on the upper flange of the part out of the box, and introduce pressure into the flat jack. Fixing the precast top plate and the main girder by pressing, and after the completion of the precast top plate, remove the flat jack and the fixed block to pour concrete into the box minus to synthesize the main girder and the precast top plate Preventing the collapse of the main girder that occurs when the top of the girder is replaced with the precast top. 프리캐스트 상판에 형성한 상자빼기부를 메인거더의 상플랜지위에 위치시켜서 놓고 메인거더 방향의 상자빼기부 사이를 고정점간 거리로하고, 상자빼기부 상당부위의 상플랜지위에 형성한 스터드를 끼우고 대향하여 V자모양 오목부를 형성하는 경사면을 갖는 한쌍의 블록을 상플랜지위에서 상자빼기부 벽면과 스터드사이를 접동 가능하게 위치시키고, 그 블록경사면에 대응하는 경사면을 갖는 끼워넣어진 블록을 스터드로 끼워넣고, 이 끼워넣어진 블록을 하향으로 이동함으로써 한쌍의 블록을 가압확대하여 상자빼기부 벽면을 가압함으로써 프리캐스트 상판과 메인거더를 고정하고, 프리캐스트 상판의 사설 완료후에 한쌍의 블록과 끼워넣어진 블록을 제거하여 상자빼기부에 콘크리트를 타설하여 메인거더와 프리캐스트 상판을 합성하는 것을 특징으로 하는 합성거더의 상판을 프리캐스트 상판으로 바꿀때 발생하는 메인거더 붕괴의 방지공법.Place the box minus part formed on the precast upper plate on the upper flange of the main girder, and set the distance between the box miners in the direction of the main girder as a fixed point distance, and insert the studs formed on the upper flange of the substantial part of the box minus part. A pair of blocks having an inclined surface forming a V-shaped recess is slidably positioned on the upper flange between the wall and stud wall, and an embedded block having an inclined surface corresponding to the block inclined surface is inserted into the stud, Move the embedded block downward to pressurize and expand the pair of blocks to press the box-outer wall to fix the precast top plate and the main girder, and after completion of editorial of the precast top plate, remove the pair of blocks and the embedded block. It is special to synthesize the main girder and the precast top plate by removing concrete by pouring concrete into the minus box. Prevention methods of the main girder collapse that occurs when you change the roof of a precast composite girders tops of. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019950024255A 1995-02-09 1995-08-05 Preventing girder method from its buckling in replacing composite girder deck with precast concrete deck KR0163632B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP95-43656 1995-02-09
JP7043656A JP2655120B2 (en) 1995-02-09 1995-02-09 Prevention method of side buckling of main girder falling when replacing precast slab with composite slab

Publications (2)

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KR960031717A true KR960031717A (en) 1996-09-17
KR0163632B1 KR0163632B1 (en) 1998-12-15

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JP5307682B2 (en) * 2009-10-09 2013-10-02 大成建設株式会社 Girder member and precast slab joint structure and slab erection method
CN105507155A (en) * 2015-12-04 2016-04-20 上海市基础工程集团有限公司 Construction process for installation of small-segment steel box girder
JP6771987B2 (en) * 2016-08-05 2020-10-21 オリエンタル白石株式会社 Floor slab replacement method for steel synthetic girders and PC floor slab
CN106320192B (en) * 2016-10-27 2018-10-09 武汉理工大学 A kind of beam section replacing and reinforcing method for large span concrete continuous beam bridge
JP6826872B2 (en) * 2016-12-05 2021-02-10 鹿島建設株式会社 How to remove concrete slab and how to install new concrete slab
JP6181332B1 (en) * 2017-02-21 2017-08-16 オリエンタル白石株式会社 Simultaneous replacement method of floor slabs for multiple bridges
JP7189807B2 (en) * 2019-03-01 2022-12-14 ショーボンド建設株式会社 Temporary fixing jig for PCa floor slab
CN110409314B (en) * 2019-08-15 2023-10-10 中国五冶集团有限公司 Automatic unidirectional limiting and locking device and method for closure section of continuous rigid frame bridge

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Publication number Priority date Publication date Assignee Title
JPH0387407A (en) * 1989-05-10 1991-04-12 Sato Tekko Kk Floor slab by precast slab of bridge and its installing device

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KR0163632B1 (en) 1998-12-15
JP2655120B2 (en) 1997-09-17
JPH08218327A (en) 1996-08-27

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