WO2021261653A1 - Pont rahmen et procédé de construction de pont rahmen - Google Patents

Pont rahmen et procédé de construction de pont rahmen Download PDF

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Publication number
WO2021261653A1
WO2021261653A1 PCT/KR2020/009627 KR2020009627W WO2021261653A1 WO 2021261653 A1 WO2021261653 A1 WO 2021261653A1 KR 2020009627 W KR2020009627 W KR 2020009627W WO 2021261653 A1 WO2021261653 A1 WO 2021261653A1
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WO
WIPO (PCT)
Prior art keywords
girder
fixing
girders
torsion
deformation
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Application number
PCT/KR2020/009627
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English (en)
Korean (ko)
Inventor
박정환
Original Assignee
대영스틸산업주식회사
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Publication of WO2021261653A1 publication Critical patent/WO2021261653A1/fr

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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
    • E01D2/00—Bridges characterised by the cross-section of their bearing spanning structure
    • E01D2/02—Bridges characterised by the cross-section of their bearing spanning structure of the I-girder type
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
    • E01D19/00—Structural or constructional details of bridges
    • E01D19/12—Grating or flooring for bridges; Fastening railway sleepers or tracks to bridges
    • E01D19/125—Grating or flooring for bridges
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
    • E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
    • E01D2101/00—Material constitution of bridges
    • E01D2101/20—Concrete, stone or stone-like material
    • E01D2101/24—Concrete
    • E01D2101/26—Concrete reinforced
    • E01D2101/28—Concrete reinforced prestressed

Definitions

  • the present invention relates to a Ramen bridge and a method for manufacturing a Ramen bridge in which a plurality of steel girders are mounted and pre-stress is applied to the girders.
  • Patent Documents 001 to 003 are inventions on the prestressed girder, but do not include technical matters for reinforcing the torsional rigidity presented in the present invention.
  • Patent Document 1 KR 10-2012-0065218 A (2012.06.20)
  • Patent Document 2 KR 10-1182084 B1 (2012.09.11.)
  • Patent Document 3 KR 10-1469150 B1 (2014.12.04.)
  • the present invention relates to a Ramen bridge and a method for manufacturing a Ramen bridge in which a plurality of steel girders are mounted and pre-stress is applied to the girders.
  • the present invention is an invention for a Ramen Bridge, and one side is fixed to the ground, and the fixing part 100 protrudes upward and is spaced apart from each other and formed as a couple; a plurality of girders installed in parallel on the fixing part; a connection part 300 positioned between the fixing part and the girder and connecting the girder and the fixing part; a deformation generating unit 400 coupled to the fixing unit and the girder and generating deformation of the girder; a torsion reinforcing part 500 coupled to the side surfaces of the plurality of girder;
  • the fixing part and the girder are integrally formed, and the finishing part 600 is formed of concrete.
  • the present invention is an invention for a Ramen bridge, and the girder 200 is formed of metal, and the cross-sectional shape is formed by any one selected from among H-shaped, box-shaped, and circular; is added.
  • connection part 300 includes a first connection part 310 fixed to the fixing part; a second connection part 320 fixed to the girder; A hinge 330 formed in a pin shape; is added to the first connecting portion and the second connecting portion.
  • the present invention is an invention for a ramen bridge, and in the invention presented above, the deformation generating part 400 is fixed to the fixing part, and a tension rod 410 protruding above the fixing part; a pressing plate 420 that is in contact with the upper part of the girder and forms an insertion hole 421 for inserting the tension rod; One surface is in contact with the pressing plate, and the strain induction nut 430 is screw-coupled to the tension rod; is added.
  • the present invention is an invention for a Ramen bridge, and in the invention presented above, the torsion reinforcing part 500 is a plurality of girders arranged in parallel and a torsion prevention plate ( 510); The number of the anti-twist plate is the same or different depending on the space between the girders; add.
  • the present invention relates to a method for constructing a ramen bridge, and a hinged connection part and a plurality of tension rods protrude upward, are fixed to the ground, reinforcing bars are reinforced inside, and a foundation step of installing a fixing part made of concrete (S100) ; After the foundation step, a girder seating step (S200) of mounting the girder to the connection part; After the girder seating step, a girder fixing step (S300) of fixing the girder and the connection part; After the girder fixing step, the strain inducing step of fastening the tension rod and the girder and deforming the girder (S400); After the deformation inducing step, a torsion reinforcement step of coupling a torsion reinforcement portion between the girder and the girder (S500); After the torsion reinforcing step, a finishing step (S600) of pouring a part and/or all of the girder and the fixing part with concrete is made in a
  • the present invention has the effect of easily changing the degree of prestress after mounting the girder.
  • the present invention forms a torsion reinforcement part between the girder and the girder, and the vibration stability of the bridge can be secured by the torsion reinforcement part.
  • the fixing part and the girder are mounted by the hinge coupling of the first connection part and the second connection part, the mounting efficiency is high, and the girder rotation during the prestress introduction process is facilitated.
  • FIG. 1 is a diagram of the shape and internal structure of a Ramen bridge of the present invention
  • FIGS. 2 and 3 are detailed cross-sectional views of the connecting part and the deformation generating part of the Ramen bridge of the present invention.
  • Figure 4 is a conceptual diagram of the prestress formation step of the present invention.
  • FIG. 5 is a conceptual diagram of a girder installation in which a deformation generating unit of the present invention is formed.
  • the present invention is an invention for a ramen bridge, and one side is fixed to the ground, and the fixing part 100 protrudes upward, and is spaced apart from each other by a fixed part 100 formed as a couple; a plurality of girders installed in parallel on the fixing part; a connection part 300 positioned between the fixing part and the girder and connecting the girder and the fixing part; a deformation generating unit 400 coupled to the fixing unit and the girder and generating deformation of the girder; a torsion reinforcing part 500 coupled to the side surfaces of the plurality of girder;
  • the fixing part and the girder are integrally formed, and the finishing part 600 is formed of concrete; It consists of a composition comprising
  • Example 1-2 The present invention is an invention for a Ramen bridge, and in Example 1-1, the fixing part is reinforced with a reinforcing bar 101 inside, and is formed of concrete 102. composed of
  • the present invention is an invention for the lam bridge, and a plurality of girders are seated in parallel on the two previously completed fixing parts (abutment/pier).
  • the plurality of girders are coupled to the fixing part by respective connecting parts. Since the inside of the connection part forms a hinge, each girder implements a rotatable condition. In order to generate a prestress in the girder, both ends of the girder apply a load to the lower part of the girder, and the load deforms the central part of the girder to the upper part.
  • the completed Ramen Bridge has a plate-like structure at the top.
  • the plate-like structure is deformed by external influences (vibration, wind), and a deformed shape is generated according to the plate-like structure. That is, the mode shape according to the vibration of the plate material structure is formed.
  • the vibration mode shape of the plate-like structure vertical deformation and left-right deformation exist repeatedly.
  • the left-right deformation causes torsional damage of the bridge.
  • since the boundary between the fixed part and the girder part is subject to extreme deformation conditions, it is a cause of breakage of concrete and damage to the connection part and the deformation generating part.
  • the present invention is an invention for a ramen bridge, and in Example 1-1, the girder 200 is formed of metal and has a cross-sectional shape selected from among H-shaped, box-shaped, and circular. It consists of a configuration that includes;
  • the present invention is an invention for a Ramen bridge, and in Example 2-1, a reinforcing plate 210 having a plate shape and welded to the surface and/or inside of the girder. composed of
  • the present invention is an invention for a Ramen bridge, and in Example 2-1, a shear connector 220 formed to protrude from the outer surface of the girder; it has a configuration including.
  • the girder of the present invention may have an H-shaped, box-shaped, or circular cross-sectional shape.
  • the proposed cross-sectional shape can be formed by joining a plurality of metal plates by welding.
  • the plurality of plate materials presented above may be formed to have different thicknesses or the same thickness.
  • the cross-sectional shape of the girder may be changed. In the case of the branch part, the box shape is maintained, but in the case of the span part, it may be formed in an H shape. That is, it can be implemented with a combination of two types of shapes.
  • the girders may form a uniform cross-section or different cross-sectional sizes. That is, the shape size of the fulcrum portion and the span portion may be formed to be different, which is to secure deformation stability.
  • the size of the branch portion is formed to be large, and the size of the span portion is preferably formed to be small.
  • the girder may form a reinforcing plate therein.
  • the reinforcing plate may be formed in the same size or different sizes, or may be formed in different thicknesses.
  • the coupling positions of the reinforcing plate and the girder may be arranged at the same or different intervals. This is to minimize the deformation of the girder and to improve the specific rigidity by the reinforcing plate.
  • the girder of the present invention forms a shear heat-insulating material on the outer surface.
  • the shear insulation is to improve the bonding strength between the concrete and the girder.
  • the shear connector is preferably joined to the girder by welding, and may be a target of reinforcing bar connection.
  • connection part 300 includes a first connection part 310 fixed to the fixing part; a second connection part 320 fixed to the girder; a hinge 330 that combines the first and second connectors and has a pin shape; It consists of a composition comprising
  • the present invention is an invention for a ramen bridge, and in Embodiment 3-1, the first connecting portion has a plate shape, and includes a first support 311 in contact with the upper surface of the fixing portion; It has a plate shape, protrudes vertically from the first support, and penetrates a first hinge fastener (312); a first anchor 313 formed in plurality and coupled to the fixing part through a through hole of the first support; It consists of a composition comprising
  • the present invention is an invention for a Ramen bridge, and in Embodiment 3-1, the second connection part includes a second support 321 in contact with the lower part of the girder; a third support 322 partially in contact with the end of the girder; a plate shape, integrally reinforcing the second support and the third support, and a penetrating second hinge fastener 323; a girder fixing bolt 324 for fixing the girder and the first support; It consists of a composition comprising
  • connection part of the present invention is a structure that combines the girder and the fixing part.
  • a hinge is used between the girder and the fixed part. And, it is composed of a first connection portion coupled to the girder, and a second connection portion connected to the fixed portion.
  • the first connecting portion forms a plate-shaped first support, and the first support is coupled to the upper surface of the fixing part by a first anchor.
  • a first anchor In order to fix the handle, two protruding plates are formed above the first support, and the protruding plates form a hinge fastener for a hinge defect.
  • the second connection part is formed in the form of a bent plate. That is, it consists of a lower plate of the second support and a side plate of the third support.
  • the second support supports the lower part of the girder, and the third support supports the end of the girder.
  • the second support and the third support may be integrally formed by bending one plate, or two plates may be welded.
  • the second support and the third support of the second connection part are formed of a single plate in contact with two surfaces, and the single plate is coupled to a plurality of them. In addition, it is coupled to the hinge by a hinge fastener.
  • the second connecting portion does not have a third support, and can fix the girder only with the second support.
  • the present invention is an invention for a ramen bridge, and in Example 1-1, the strain generating part 400 is fixed to the fixing part, and a tension rod protruding above the fixing part ( 410); a pressing plate 420 that is in contact with the upper part of the girder and forms an insertion hole 421 for inserting the tension rod; One surface is in contact with the pressing plate, the strain induction nut 430 is screw-coupled to the tension rod; It consists of a composition comprising
  • Example 4-2 The present invention is an invention for a ramen bridge, and in Example 4-1, a shear fixing plate 411 coupled to one end of the tension rod;
  • the deformation generating unit of the present invention is to induce deformation of the girder.
  • the device for releasing the load on the girder is a pressing plate, and the pressing plate forms a state in contact with the upper part of the girder.
  • the pressure plate forms two through holes (insertion ports), and a tension rod is coupled to the insertion holes.
  • a male screw is formed at one end of the tension rod, and the male screw is fastened with a deformation induction nut.
  • the deformation inducing nut when the deformation inducing nut is fastened, it proceeds along the thread, and the progress of the nut presses the press plate, the press plate applies a load to the end of the girder, and the load applied to the end of the girder causes deformation of the entire girder.
  • an insertion hole is formed inside the girder, and the deformation inducing nut can directly deform the girder without a pressing plate.
  • the configuration corresponding to the insertion hole should form a slot shape.
  • the tension rod may be separated from the fixed part.
  • one end of the tension rod (the part inserted into the fixing part) must be completely fixed with the wild concrete by placing a plate-shaped shear fixing plate.
  • Example 5-1 The present invention is an invention for a Ramen bridge, and in Example 1-1, the torsion reinforcing part 500 is provided in a plurality of girders arranged in parallel and in the space S between the girders of the girders. Torsion prevention plate 510 disposed in one or a plurality; The number of anti-twist plates is formed to be the same or different depending on the space between the girders; consists of a configuration including.
  • the present invention relates to a torsion reinforcing part.
  • the torsion reinforcement part is located in the space between the girders.
  • One or a plurality of torsion reinforcing units may be located.
  • a plurality of spaces between girders are formed between the plurality of girders, and the torsion reinforcement part is arranged under different conditions in the space between the girders located at the center of the bridge and the space between the girders located at the edge of the bridge under the condition that several girders are installed. This is done for the purpose of increasing the overall torsional rigidity according to the vibration mode of the bridge.
  • the number of torsion reinforcing parts formed in the space between the girders at the center of the bridge is smaller than the number of torsion reinforcing parts formed in the space between the girders at the edge of the bridge. That is, it is possible to obtain the effect that the bridge edge is reinforced more than the center, which can secure high torsional rigidity.
  • the torsion reinforcing part is made of a torsion prevention plate positioned between the girder and the girder, and the torsion prevention plate has a plate shape and may be made of a section steel.
  • the anti-twist plate may form a second reinforcing plate that is cross-formed at a portion coupled to the girder.
  • the present invention relates to a construction method for a Ramen bridge, in which a hinged connection part and a plurality of tension rods protrude upward, and are fixed to the ground, reinforcing bars are reinforced therein, and a fixing part made of concrete Basic step of installing (S100); After the foundation step, a girder seating step (S200) of mounting the girder of Example 1 to the connection part; After the girder seating step, a girder fixing step (S300) of fixing the girder and the connection part; After the girder fixing step, the strain inducing step of fastening the tension rod and the girder and deforming the girder (S400); After the deformation inducing step, a torsion reinforcement step of coupling a torsion reinforcement portion between the girder and the girder (S500); After the torsion reinforcement step, a finishing step (S600) of pouring a part and/or all of the girder and the fixing part with concrete is made
  • the present invention relates to a method for constructing a ramen bridge.
  • the Ramen Bridge construction method consists of a time-series procedure of the foundation stage, the girder seating stage, the girder fixing stage, the deformation induction stage, the torsion reinforcement stage, and the finishing stage.
  • the foundation step is formed to be fixed to the ground, and is preferably formed of a reinforced concrete structure.
  • the tension rods are manufactured in advance and combined, and then concrete is poured to form the fixed part.
  • connection part is coupled to the fixing part.
  • the connection portion is preferably coupled to a plurality of anchors, and the plurality of anchors may be integrally formed with the reinforcing bars of the base.
  • connection part After the connection part is installed in the fixing part, the girder is fixed to the connection part.
  • the girder is seated at the connecting part, and the girder and the connecting part are connected with bolts.
  • prestress is applied to the girder. This is done by the deformation induction step, and a load is applied to the girder in contact with the tension rod.
  • the deformation inducing nut is rotated to pressurize the end of the girder.
  • the deformation induction nut is rotated using hydraulic equipment.
  • the girder and the girder are fixed by torsion reinforcement.
  • the fixing part and the girder are poured concrete.
  • reinforcing plate 220 shear connector
  • connection part 310 first connection part
  • first support 312 first hinge fastener
  • first anchor 320 second connection part
  • hinge 400 deformation generating part
  • tension rod 411 shear fixing plate

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

Abstract

La présente invention concerne un pont Rahmen et, comprend en particulier : des parties fixes (100), chacune ayant un côté fixé au sol, faisant saillie vers le haut, et étant espacée à des intervalles prédéfinis et formée en tant que couples ; une pluralité de poutres (200) chargées en parallèle sur les parties fixes ; des parties de liaison (300) qui sont positionnées entre les parties fixes et les poutres et qui relient les poutres et les parties fixes ; une partie (400) provoquant une déformation qui est couplée aux parties fixes et aux poutres, et qui amène les poutres à être déformées ; une partie (500) de renforcement de torsion couplée aux surfaces latérales de la pluralité de poutres ; et une partie de finition (600) qui intègre les parties fixes et les poutres et qui est réalisée en béton.
PCT/KR2020/009627 2020-06-22 2020-07-22 Pont rahmen et procédé de construction de pont rahmen WO2021261653A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR10-2020-0075571 2020-06-22
KR1020200075571A KR102258993B1 (ko) 2020-06-22 2020-06-22 라멘교, 라멘교 시공방법

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WO2021261653A1 true WO2021261653A1 (fr) 2021-12-30

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Publication number Priority date Publication date Assignee Title
KR102564139B1 (ko) * 2022-12-19 2023-08-08 주식회사 한가람 효율 개선형 강재 거더를 이용한 라멘교량 시공방법 및 그에 의해 시공된 라멘교량

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060162102A1 (en) * 2005-01-21 2006-07-27 Guy Nelson Prefabricated, prestressed bridge system and method of making same
JP2008297720A (ja) * 2007-05-29 2008-12-11 Nagoya Institute Of Technology 鋼橋梁を対象とした無損傷自己復元型免震・制震機構
KR101431640B1 (ko) * 2014-03-28 2014-08-20 박정환 거더의 형식에 관계없이 적용할 수 있는 거더 고정장치 및 이를 이용한 라멘교의 시공방법
KR101476150B1 (ko) * 2013-08-16 2014-12-24 이경표 프리토션 거더를 이용한 라멘교의 시공방법
KR101691451B1 (ko) * 2016-07-14 2016-12-30 대영스틸산업주식회사 강재거더 고정장치, 강재거더 시공방법 및 강재거더

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KR101170922B1 (ko) 2010-12-10 2012-08-03 이하란 텐던과 연결지지대를 이용한 라멘교 시공방법
KR101182084B1 (ko) 2012-03-30 2012-09-11 박숭호 가받침에 의해 도입된 압축응력 증대 구조계를 갖는 라멘구조의 프리스트레스트 프리캐스트 거더의 제작방법과 압축응력 증대 구조계의 가받침이 우각부의 힌지구조 및 강결구조가 되게 시공하는 라멘교 시공방법
KR101469150B1 (ko) 2014-07-14 2014-12-04 브릿지테크놀러지(주) 거더를 이용한 라멘교 시공방법

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060162102A1 (en) * 2005-01-21 2006-07-27 Guy Nelson Prefabricated, prestressed bridge system and method of making same
JP2008297720A (ja) * 2007-05-29 2008-12-11 Nagoya Institute Of Technology 鋼橋梁を対象とした無損傷自己復元型免震・制震機構
KR101476150B1 (ko) * 2013-08-16 2014-12-24 이경표 프리토션 거더를 이용한 라멘교의 시공방법
KR101431640B1 (ko) * 2014-03-28 2014-08-20 박정환 거더의 형식에 관계없이 적용할 수 있는 거더 고정장치 및 이를 이용한 라멘교의 시공방법
KR101691451B1 (ko) * 2016-07-14 2016-12-30 대영스틸산업주식회사 강재거더 고정장치, 강재거더 시공방법 및 강재거더

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