KR100567915B1 - Continuous prestressed concrete composite with steel plates and connection method - Google Patents

Continuous prestressed concrete composite with steel plates and connection method Download PDF

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KR100567915B1
KR100567915B1 KR1020030008106A KR20030008106A KR100567915B1 KR 100567915 B1 KR100567915 B1 KR 100567915B1 KR 1020030008106 A KR1020030008106 A KR 1020030008106A KR 20030008106 A KR20030008106 A KR 20030008106A KR 100567915 B1 KR100567915 B1 KR 100567915B1
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steel plate
psc
plate
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composite type
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KR20040072147A (en
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영 제 박
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박영희
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Priority to KR1020030008106A priority Critical patent/KR100567915B1/en
Priority to EP03782967A priority patent/EP1579077A4/en
Priority to PCT/KR2003/002826 priority patent/WO2004059089A1/en
Priority to US10/540,414 priority patent/US20060137115A1/en
Priority to CNB2003101147062A priority patent/CN1300421C/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
    • 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
    • E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
    • E04C5/01—Reinforcing elements of metal, e.g. with non-structural coatings
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
    • E04C5/08—Members specially adapted to be used in prestressed constructions

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  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Bridges Or Land Bridges (AREA)

Abstract

본 발명은 강재 플레이트를 포함하는 연속 PSC 합성형 및 그의 연결 방법에 대한 것으로, 구조물의 전체에 걸쳐 전단철근 및 주철근을 배근하는 단계;와 구조물의 전체에 걸쳐 강선이 내장된 쉬스관을 배근하는 단계;와 구조물의 단부에 소울플레이트를 설치하는 단계;와 구조물의 상·하부플랜지에 전단연결재가 설치된 강재 플레이트를 설치하는 단계;와 구조물의 전체에 걸쳐 콘크리트를 타설하는 단계;와 콘크리트가 양생된 후 쉬스관 안에 내장된 강선을 인장하여 구조물에 압축력을 도입시키는 단계로 이루어진 것을 특징으로 한다.The present invention relates to a continuous PSC composite type including a steel plate and a method for connecting the same, including: shearing reinforcing bars and cast iron bars throughout the structure; and reinforcing the sheath pipe having the steel wires embedded throughout the structure. And installing a soul plate at the end of the structure; and installing steel plates provided with shear connectors on the upper and lower flanges of the structure; and pouring concrete throughout the structure; and after the concrete is cured. It is characterized by consisting of a step of introducing a compressive force to the structure by tensioning the steel wire embedded in the sheath tube.

본 발명에서 제시한 강재 플레이트를 포함하는 연속 PSC 합성형 구조물은 그의 형고를 대폭 줄이더라도 기존의 일반 PSC 합성형만큼의 강성을 발휘할 수 있어 낮은 형고의 날렵한 합성형을 제작할 수 있다.The continuous PSC composite structure including the steel plate proposed in the present invention can exhibit a rigidity as much as the existing general PSC composite type even if the mold height is greatly reduced, so that a slender composite type having a low mold height can be manufactured.

10:PSC 합성형 구조물 20:전단철근 및 주철근 30:수평전단철근 40:쉬스관 50:소울플레이트 60:강재 플레이트 70:전단연결재 80:연결 플레이트 90:교좌장치 100:합성형 구조물의 틈 110:맞댐용접DESCRIPTION OF SYMBOLS 10: PSC composite structure 20: Shear reinforcement and cast iron 30: Horizontal shear rebar 40: Sheath pipe 50: Soul plate 60: Steel plate 70: Shear connector 80: Connection plate 90: Bridge device 100: Gap of composite structure 110: Butt Weld

Description

강재 플레이트를 포함하는 연속 프리스트레스트 콘크리트 합성형 및 그의 연결 방법{.}Continuous prestressed concrete composite type including steel plate and connection method thereof.

[도 1]은 종래기술의 구조물을 나타낸 사시도이다.1 is a perspective view showing a structure of the prior art.

[도 2]는 본 발명의 강재 플레이트를 포함하는 연속 PSC 합성형을 나타낸 단면도이다.2 is a cross-sectional view showing a continuous PSC composite type including a steel plate of the present invention.

[도 3]는 연속교에서 외측경간용 합성형의 경우 본 발명의 강재 플레이트를 포함하는 연속 PSC 합성형의 강재 플레이트가 배치된 측면도이다.FIG. 3 is a side view of a continuous PSC composite type steel plate including the steel plate of the present invention in the case of a composite type for an outer span in a continuous bridge.

[도 4]는 연속교에서 내측경간용 합성형의 경우 본 발명의 강재 플레이트를 포함하는 연속 PSC 합성형의 강재 플레이트가 배치된 측면도이다.FIG. 4 is a side view of a continuous PSC composite steel plate including the steel plate of the present invention in the case of a composite bridge for the inner span in a continuous bridge.

[도 5]는 연속교에서 본 발명의 강재 플레이트를 포함하는 PSC 합성형을 연속교로의 시공시 연결 방법을 나타낸 상세도이다.FIG. 5 is a detailed view illustrating a method of connecting a PSC composite type including a steel plate of the present invention in a continuous bridge in a continuous bridge.

본 발명은 강재 플레이트를 포함하는 연속 PSC 합성형 및 연속교로의 적용시 연결방법에 관한 것으로써 종래기술로는 특별한 강재 플레이트가 없는 전 단면이 콘크리트만으로 이루어진 PSC 합성형이 있다.The present invention relates to a continuous PSC composite type including a steel plate and a connection method when applying a continuous bridge, and the prior art has a PSC composite type made of concrete only in the whole cross section without a special steel plate.

도 1은 일반적으로 가장 많이 사용되고 있는 종래기술의 PSC 합성형을 나타낸 것이다.       Figure 1 shows the PSC synthesis type of the prior art which is most commonly used.

도 1a는 그의 단면을 나타낸 것으로 전 단면이 콘크리트로 이루어진 PSC 합성형 구조물(10) 속에 전단철근 및 주철근(20), 상부 바닥판 콘크리트와의 합성 역할을 전담하는 수평전단철근(30) 그리고 상기 콘크리트 구조물의 인장측 하단에 압축력을 도입시키기 위한 강선이 내장된 쉬스관(40)으로 구성되어 있다. Figure 1a is a cross-sectional view of the horizontal shear reinforcing bar (30) dedicated to the composite role of shear reinforcing bar and cast iron 20, the upper floor concrete in the PSC composite structure (10) made of a concrete cross section and the concrete It consists of a sheath tube 40 with a steel wire for introducing a compressive force to the lower end of the tension side of the structure.

도 1b는 상기 종래기술의 PSC 합성형 구조물의 측면도를 나타낸 사시도로서 PSC 합성형 구조물(10) 전체에 걸쳐 강선을 포함하는 쉬스관(40)이 포물선 형상으로 배치되어 있으며 구조물(10)의 각 단부는 하부 교좌장치와의 연결을 위한 소울플레이트(50)가 매설되어 있다. FIG. 1B is a perspective view showing a side view of the PSC composite structure of the prior art in which a sheath tube 40 including a steel wire is disposed in a parabolic shape throughout the PSC composite structure 10 and each end of the structure 10. The soul plate 50 is embedded for connection with the lower pedestal device.

상기와 같이 이루어져 있는 종래기술의 PSC 합성형은 상기의 철근들이 배근된 콘크리트 구조물에 쉬스관 속에 내장된 강선을 이용해 압축력을 상기 콘크리트 구조물 전체에 도입하므로써 추후 작용하는 사하중 및 활하중에 대응할 수 있도록 만들어진 합성형이다. 그러나 종래기술의 PSC 합성형은 전체 단면이 콘크리트만으로 이루어져 있어 그의 강성이 강(Steel)만으로 이루어져 있는 강구조물에 비해 낮기 때문에 구조물의 형고가 커져야 한다. 이는 구조물 전체가 투박해 보이며 형하공간을 확보하여야 하는 하천을 횡단하는 교량에는 사용하기가 어려운 단점을 가지고 있다. 또한 도 1a와 같이 상부 바닥판 콘크리트와의 합성역할을 하는 수평전단철근의 경우 PSC 합성형 내에서 빼내어야 하기 때문에 PSC 합성형 자체에서 필요로 하는 철근보다 더 많은 철근을 PSC 합성형에 배치하여야 하는 비경제성 또한 내포하고 있다.The conventional PSC composite type made of the above is a composite made to cope with future dead and live loads by introducing a compressive force to the entire concrete structure by using a steel wire embedded in the sheath pipe in the concrete structure in which the reinforcing bars are reinforced. Brother. However, the PSC composite type of the prior art is made of concrete only, so the rigidity of the structure must be increased because its rigidity is lower than that of steel structures composed only of steel. This has the disadvantage that it is difficult to use for bridges that cross rivers where the whole structure seems to be rough and the space to be secured. In addition, as shown in FIG. 1a, since the horizontal shear reinforcing bars acting as the upper deck concrete have to be pulled out of the PSC composite type, more reinforcing bars need to be disposed in the PSC composite type than are required in the PSC composite type itself. Non-economics are also implicated.

본 발명은 위와 같은 종래 기술의 단점을 해결하고자 하는 목적으로 안출되었으며, 이러한 목적달성을 위하여 기존의 PSC 합성형의 상하플랜지에 강재 플레이트를 매설하여 제작함으로서 구조물 자체의 강성을 증가시켜 형고의 감소를 꾀해 날렵하고 경제적인 구조물을 제시하고자 한다.The present invention has been made to solve the above-mentioned disadvantages of the prior art, to achieve this purpose by increasing the rigidity of the structure itself by embedding the steel plate in the upper and lower flanges of the conventional PSC composite type to reduce the reduction of the mold height I would like to suggest a sleek and economical structure.

도 2에서 도 5는 본 발명의 강재 플레이트를 포함하는 연속 PSC 합성형 및 그의 연결 방법에 대한 것으로 도 2는 본 발명의 구조물의 단면도를, 도 3과 도 4는 각각 본 발명의 PSC 합성형을 연속교의 외측경간용, 내측경간용으로 제작시 측면도를, 도 5는 본 합성형을 연속교로 시공시 각 합성형끼리의 연결 방법을 나타낸 것이다.2 to 5 is a continuous PSC composite type comprising a steel plate of the present invention and a connection method thereof, Figure 2 is a cross-sectional view of the structure of the present invention, Figure 3 and Figure 4 is a PSC composite type of the present invention, respectively Side view during fabrication for the outer span and the inner span of the continuous bridge, Figure 5 shows the connection method of each composite type when the present composite type is constructed as a continuous bridge.

이를 도면을 이용하여 설명하면 다음과 같다. This will be described with reference to the drawings.

도 2는 본 발명의 구조물의 강재 플레이트가 매설된 단면도를 나타낸 것으로 콘크리트 구조물(10) 및 전단철근 및 주철근(20), 강선이 내장된 쉬스관(40)은 종래기술과 마찬가지로 이루어져 있으며 추가로 본 발명의 특징인 구조물의 상하플랜지에 전단연결재(70)가 달린 강재 플레이트(60)를 포함시켜 제작한다. 여기서 강재 플레이트(60)는 구조물 자체의 강성을 높여주며, 전단연결재(70)는 강재 플레이트 와 PSC 합성형 및 바닥판 콘크리트와의 합성 역할을 이루도록 해 준다. 이로써 본 발명의 PSC 합성형은 강재 플레이트가 매설되어 제작됨으로써 자체의 강성이 증가되어 형고를 줄이더라도 원래의 PSC 합성형의 강성만큼을 확보할 수 있는 장점이 있다. 또한 바닥판 콘크리트와의 합성 역할을 하는 전단연결재(70)는 본 발명에 의해 제작된 PSC 합성형의 강재 플레이트에 별도로 용접에 의해 설치됨으로 기존 PSC 합성형과 같이 구조물 자체에 철근을 추가로 배치할 필요가 없어 과다 철근의 비경제성을 해소할 수 있다. 2 is a cross-sectional view of the steel plate embedded in the structure of the present invention concrete structure 10 and the shear reinforcement and cast steel 20, sheath pipe 40 is built with a steel wire is made as in the prior art and further seen The steel plate 60 with the shear connection member 70 is produced by the upper and lower flanges of the structure which is a feature of the invention. Wherein the steel plate 60 increases the rigidity of the structure itself, the shear connector 70 serves to achieve the composite role between the steel plate and the PSC composite type and the bottom plate concrete. As a result, the PSC composite type of the present invention has an advantage that the rigidity of the original PSC composite type can be secured even when the steel plate is embedded and manufactured to increase its rigidity, thereby reducing the mold height. In addition, the shear connector 70, which plays a role of synthesizing with the bottom plate concrete, is installed by welding separately to the steel plate of the PSC composite type manufactured by the present invention, so that additional reinforcing bars may be additionally disposed in the structure itself as in the conventional PSC composite type. There is no need to eliminate the economics of excess rebar.

도 3a는 본 발명의 연속 PSC 합성형을 연속교의 외측경간에 적용시 자중 및 외력에 의한 모멘트도를, 도 3b는 그의 제작시 강재 플레이트를 합성형에 배치한 형상을 나타내는 측면도이다. 도 3b는 도 3a의 모멘트도와 같이 정모멘트에 비해 약 2배 정도 큰 부모멘트 구간 내에 강재 플레이트를 PSC 합성형의 상하플랜지에 매설하여 제작한다.FIG. 3A is a side view showing a shape of moments due to self weight and external force when the continuous PSC composite die of the present invention is applied to the outer span of a continuous bridge, and FIG. FIG. 3B is a steel plate embedded in the upper and lower flanges of the PSC composite type in the parent moment section about twice as large as the static moment as shown in FIG. 3A.

도 4a는 본 발명의 연속 PSC 합성형을 연속교의 내측경간에 적용시 자중 및 외력에 의한 모멘트도를, 도 4b는 그의 제작시 강재 플레이트를 합성형에 배치한 형상을 나타내는 측면도이다. 도 4b는 도 4a의 모멘트도와 같이 정모멘트에 비해 약 2배 정도 큰 양쪽 부모멘트 구간 내에 강재 플레이트를 PSC 합성형의 상하플랜지에 매설하여 제작한다. FIG. 4A is a side view showing a moment diagram of self-weight and external force when the continuous PSC composite die of the present invention is applied to the inner span of a continuous bridge, and FIG. FIG. 4B is a steel plate embedded in the upper and lower flanges of the PSC composite type in both parent moment sections about twice as large as the static moment as shown in FIG. 4A.

도 5는 상기 도3 및 도4에서 제작된 본 발명의 연속 PSC 합성형을 연속교로 시공시의 합성형끼리의 연결 방법을 나타낸 상세도이다. 먼저 복수로 제작한 PSC 합성형을 교각의 교좌장치(90) 위에 거치하기 전 교좌장치 위에 연결 플레이트(80) 를 설치하여 2개의 PSC 합성형 구조물의 하부플랜지에 매설한 강재 플레이트와 4변 용접하여 연결한다. 또한 상부플랜지에의 연결방법은 상부플랜지에 매설된 강재 플레이트를 서로 맞댐 용접(110)에 의해 연결하고 상기 하부플랜지의 연결과 마찬가지 방법으로 연결 플레이트(80)를 이용해 4변 용접하여 연결한다. 그 후 합성형과 합성형 사이의 틈(100)은 에폭시수지를 주입시켜 완전 접합시킴으로써 본 발명의 강재 플레이트를 포하하는 연속 PSC 합성형은 완성되는 것이다.FIG. 5 is a detailed view showing a method of connecting the composite PSCs in the continuous bridge construction of the continuous PSC composite type of the present invention manufactured in FIGS. 3 and 4. First, before mounting the plurality of PSC composite type on the bridge device 90 of the piers, the connection plate 80 is installed on the bridge device, and the steel plates embedded in the lower flanges of the two PSC composite structures are welded to the four sides. Connect. In addition, the connection method to the upper flange is connected to the steel plate buried in the upper flange by the butt welding 110 to each other by connecting the four sides using the connection plate 80 in the same manner as the connection of the lower flange. After that, the gap 100 between the composite mold and the composite mold is completely bonded by injecting epoxy resin, thereby completing the continuous PSC composite mold including the steel plate of the present invention.

본 발명에서 제시한 강재 플레이트를 포함하는 연속 PSC 합성형 구조물은 그의 형고를 대폭 줄이더라도 기존의 일반 PSC 합성형만큼의 강성을 발휘할 수 있어 낮은 형고의 날렵한 합성형을 제작할 수 있다.The continuous PSC composite structure including the steel plate proposed in the present invention can exhibit a rigidity as much as the existing general PSC composite type even if the mold height is greatly reduced, so that a slender composite type having a low mold height can be manufactured.

Claims (6)

삭제delete 삭제delete 삭제delete 삭제delete 교좌장치(90)의 위치에 소울 플레이트(50)가 매설된 2경간 이상의 PSC빔 연속교에 있어서 외측경간에서는 강재 플레이트(60)를 부 모멘트구간에 걸쳐 PSC빔의 상ㆍ하부 플랜지에 설치하되 PSC빔의 상부 플랜지에 설치된 강재 플레이트(60)와 전단 연결재(70)가 일체로 형성되고, 내측 경간에서도 강재 플레이트(60)를 부 모멘트구간에 걸쳐 PSC빔의 상ㆍ하부 플랜지에 설치하되 PSC빔의 상부 플랜지에 설치된 강재 플레이트(60)와 전단 연결재(70)가 일체로 형성되며, 지점부의 강재 플레이트(60)의 연결은 상부 플랜지부는 강재 플레이트(60)를 서로 맞대어 용접하고, 하부 플랜지부는 연결 플레이트(80)를 덧대고 용접함을 특징으로 하는 연속 PSC 합성형In the PSC beam continuous bridge of two or more spans where the soul plate 50 is embedded at the position of the bridge device 90, the steel plate 60 is installed on the upper and lower flanges of the PSC beam over the minor moment section in the outer span. The steel plate 60 and the shear connector 70 integrally formed on the upper flange of the beam are integrally formed, and the steel plate 60 is installed on the upper and lower flanges of the PSC beam over the minor moment section even in the inner span. The steel plate 60 and the shear connector 70 formed on the upper flange are integrally formed, and the connection of the steel plate 60 at the branch portion is performed by welding the steel plate 60 to each other, and the lower flange part to the connecting plate. Continuous PSC composite type characterized by welding with padding 80 교좌장치(90)의 위치에 소울 플레이트(50)가 매설된 2경간 이상의 PSC빔 연속교에 있어서 외측경간에서는 강재 플레이트(60)를 부 모멘트구간에 걸쳐 PSC빔의 상ㆍ하부 플랜지에 설치하되 PSC빔의 상부 플랜지에 설치된 강재 플레이트(60)와 전단 연결재(70)가 일체로 형성되고, 내측 경간에서도 강재 플레이트(60)를 부 모멘트구간에 걸쳐 PSC빔의 상ㆍ하부 플랜지에 설치하되 PSC빔의 상부 플랜지에 설치된 강재 플레이트(60)와 전단 연결재(70)가 일체로 형성되며, 지점부의 강재 플레이트(60)의 연결은 상부 플랜지는 강재 플레이트(60)를 서로 맞대어 용접하고, 하부 플랜지는 강재 플레이트(60)를 서로 맞대어 놓은 상태에서 강재 플레이트(60)보다 크기가 작은 연결 플레이트(80)를 덧대고, 그 상태에서 연결 플레이트(80)와 강재 플레이트(60)가 이루는 경계면을 용접하여서 됨을 특징으로 하는 연속 PSC 합성형의 연결방법 In the PSC beam continuous bridge of two or more spans where the soul plate 50 is embedded at the position of the bridge device 90, the steel plate 60 is installed on the upper and lower flanges of the PSC beam over the minor moment section in the outer span. The steel plate 60 and the shear connector 70 integrally formed on the upper flange of the beam are integrally formed, and the steel plate 60 is installed on the upper and lower flanges of the PSC beam over the minor moment section even in the inner span. The steel plate 60 and the shear connector 70 formed on the upper flange are integrally formed, and the connection of the steel plate 60 at the branch portion is performed by welding the steel plate 60 against each other and the lower flange steel plate 60. In the state where the 60 is brought into contact with each other, the connecting plate 80 having a smaller size than the steel plate 60 is padded, and in that state, the interface between the connecting plate 80 and the steel plate 60 is welded. Characterized in that the connection of the continuous yeoseo PSC composite according to methods
KR1020030008106A 2002-12-30 2003-02-10 Continuous prestressed concrete composite with steel plates and connection method Expired - Lifetime KR100567915B1 (en)

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EP03782967A EP1579077A4 (en) 2002-12-30 2003-12-24 Prestressed composite girder, continuous prestressed composite girder structure and methods of fabricating and connecting the same
PCT/KR2003/002826 WO2004059089A1 (en) 2002-12-30 2003-12-24 Prestressed composite girder, continuous prestressed composite girder structure and methods of fabricating and connecting the same
US10/540,414 US20060137115A1 (en) 2002-12-30 2003-12-24 Prestressed composite girder, continuous prestressed composite girder structure and methods of fabricating and connecting the same
CNB2003101147062A CN1300421C (en) 2002-12-30 2003-12-30 Prestress combined beam, continuous prestress combined beam structure and producing connection method

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KR101222620B1 (en) 2012-05-10 2013-02-06 주식회사 젬콘 Prestressed concrete girder and it's manufacture and construction method which used pretensioning steel plate
KR102139132B1 (en) 2019-04-30 2020-07-29 김준영 Steel form structure capable of adjusting the angle of end, and prestressed concrete beam manufactured thereby and construction method of bridge using the same

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KR100729370B1 (en) * 2006-03-02 2007-06-15 심태영 Synthetic Girder
KR100740512B1 (en) * 2006-03-06 2007-07-19 신성건설 주식회사 Composite girder for beams
KR101406786B1 (en) * 2013-08-19 2014-06-17 정해용 Continuous support of bridge and bridge construction method therewith

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101222620B1 (en) 2012-05-10 2013-02-06 주식회사 젬콘 Prestressed concrete girder and it's manufacture and construction method which used pretensioning steel plate
KR102139132B1 (en) 2019-04-30 2020-07-29 김준영 Steel form structure capable of adjusting the angle of end, and prestressed concrete beam manufactured thereby and construction method of bridge using the same

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