KR20070053409A - Precast concrete panel and nonsupport construction method of bridge's cantilever work utilizing p.c.p - Google Patents

Precast concrete panel and nonsupport construction method of bridge's cantilever work utilizing p.c.p Download PDF

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KR20070053409A
KR20070053409A KR1020050111171A KR20050111171A KR20070053409A KR 20070053409 A KR20070053409 A KR 20070053409A KR 1020050111171 A KR1020050111171 A KR 1020050111171A KR 20050111171 A KR20050111171 A KR 20050111171A KR 20070053409 A KR20070053409 A KR 20070053409A
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steel
bridge
precast concrete
concrete panel
girder
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KR1020050111171A
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KR100727172B1 (en
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강필규
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오승탁
강필규
황인준
정민
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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
    • 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
    • E01D2101/268—Composite concrete-metal

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

Abstract

본 발명은 교량 슬래브 난간 및 중앙분리대의 캔틸레버부를 별도의 가설 거푸집과 지보공 설치 없이 상부공 작업을 할수 있도록 제작되는 프리캐스트 콘크리트 패널(10)과 그를 이용한 교량슬래브 캔틸레버부 무지보 시공방법을 제공하기 위한 것이다.

본 발명의 프리캐스트 콘크리트 패널(10)은 전체적으로 "ㄴ"자의 단면형상을 가지며, 수평바닥판에는 상부하중을 지지하면서 현장치기콘크리트(31)와 일체화 거동되도록 하는 인장주철근 및 "ㄷ"자 형태의 전단연결재 등이 매입되거나 부착되며, 교량의 강재거더(16) 또는 psc 거더(16)에 용접 및 강결하는데 이용되는 연결고정용철근(12)과 강재 연결고리(15)를 일정간격으로 외부에 노출되도록 제작하는 것을 특징으로 한다.

본 발명의 시공방법은 미리 제작된 상기의 프리캐스트 콘크리트 패널(10)을 캔틸레버 형태가 되도록 교량의 강재거더(16) 또는 psc거더(16)에 거치하여 용접이음, 턴버클(11) 체결 및 와이어 결속 등으로 고정시킴으로서 상부 현장치기콘크리트 작업시 하중지지 브라켓과 영구거푸집 기능을 수행토록 하는 특징이 있다.

상기의 방법을 교량슬래브 캔틸레버부 시공시 적용하면, 추락 등으로 인한 안전사고 예방과 공기단축, 경제성 및 시공성 향상을 도모할 수 있다.

Figure 112005513817149-PAT00001

프리캐스트 콘크리트 패널, 캔틸레버부, 교량슬래브, 브라켓, 무지보, 영구거푸집

The present invention is to provide a precast concrete panel 10 and a bridge slab cantilever unit without a beam construction method using the same cantilever portion of the bridge slab railing and the central separator can be installed in the upper hole without installing a separate temporary formwork and support. .

Precast concrete panel 10 of the present invention has a cross-sectional shape of the letter "b" as a whole, and the tensile cast steel and "c" shape of the horizontal bottom plate to be integrated with the field-treating concrete 31 while supporting the upper load Shear connector is embedded or attached, and exposed to the outside at regular intervals to the connection fixing reinforcing bar 12 and the steel connecting ring (15) used to weld and tighten the steel girder (16) or psc girder (16) of the bridge It is characterized in that the production.

The construction method of the present invention is mounted on the steel girders 16 or psc girder 16 of the bridge so as to form a cantilever in the precast concrete panel 10 prepared in advance, the welding joint, turnbuckle 11 fastening and wire binding By fixing it with the back, it is characterized in that the load supporting bracket and the permanent formwork function are performed during the operation of the upper spot drill concrete.

When the above method is applied at the time of construction of the bridge slab cantilever, it is possible to prevent safety accidents due to the fall and to reduce the air, economical and constructability.

Figure 112005513817149-PAT00001

Precast concrete panel, cantilevered section, bridge slab, bracket, plain beam, permanent formwork

Description

프리캐스트 콘크리트 패널 및 그를 이용한 교량 슬래브 캔틸레버부 무지보 시공방법{Precast Concrete Panel and Nonsupport Construction Method of Bridge's Cantilever Work Utilizing P.C.P}Precast Concrete Panel and Nonsupport Construction Method of Bridge's Cantilever Work Utilizing P.C.P}

도 1은 교량 캔틸레버부의 종래 시공상태 사시도1 is a perspective view of a conventional construction state of the bridge cantilever portion

도 2는 교량 캔틸레버부 무지보 시공방법 사시도Figure 2 is a perspective view of the bridge cantilever unit construction support method

도 3은 프리캐스트 콘크리트 패널 제작 단면도Figure 3 is a cross-sectional view of the precast concrete panel production

도 4는 프리캐스트 콘크리트 패널 제작 평면도4 is a plan view of the production of precast concrete panels

도 5는 교량 캔틸레버부 무지보 시공상태 단면도5 is a cross-sectional view of the bridge cantilever unit unsupported construction state

도 6은 프리캐스트 콘크리트 패널 전단연결재 시공 상세도6 is a detailed view of the construction of precast concrete panel shear connector

도 7은 프리캐스트 콘크리트 패널 단부 연결고리 시공상세도7 is a detailed view of the construction of precast concrete panel end hook

도 8은 프리캐스트 콘크리트 패널 중간부 연결고리 시공상세도8 is a detailed view of the construction of the intermediate link between the precast concrete panel

도 9는 턴버클 상세도9 is a turnbuckle detail view

도 10은 교량 슬래브 중분대부 시공상세도10 is a detailed view of the construction of bridge slab middle squad

도 11은 와이어메쉬 상세도11 is a detailed view of the wire mesh

〈도면의 주요부분에 대한 부호의 설명〉<Explanation of symbols for main parts of drawing>

10 : 프리캐스트 콘크리트 패널(Precast Concrete Panel)10: Precast Concrete Panel

11 : 턴버클 12 : 연결고정용 철근11: turnbuckle 12: fixing rod for connection

13 : 교량의 강재거더 또는 psc거더의 전단연결재13: Shear connector of steel girder or psc girder of bridge

14 : 프리캐스트 콘크리트 패널의 전단연결재14: Shear connector of precast concrete panel

15 : 연결고리 16 : 교량의 강재거더 또는 psc거더15: linkage 16: steel girder or psc girder of bridge

본 발명은 교량슬래브 난간 및 중분대의 캔틸레버부를 별도의 가설 거푸집 및 동바리 설치 없이 시공토록 위하여 전체적으로 "ㄴ"자형의 단면형상을 가지며, 교량의 강재거더(16) 또는 psc 거더(16)에 용접이음되는 연결고정용철근(12), 현장치기콘크리트(31)와의 일체화 거동을 위한 "ㄷ"자형태의 전단연결재 및 턴버클(11) 체결시 이용되는 강재 연결고리(15)가 부착된 프리캐스트 콘크리트 패널(10)과 상기의 프리캐스트 콘크리트 패널(10)을 교량의 강재거더(16) 또는 psc거더(16)에 용접이음, 턴버클(11) 체결 등으로 고정시켜 프리캐스트 콘크리트 패널(10) 자체가 영구거푸집 및 하중지지 브라켓이 되도록 하는 시공방법에 관한 것이다.The present invention has a cross-sectional shape of the "b" shape as a whole, so that the cantilever portion of the bridge slab railings and the middle squad can be installed without separate temporary formwork and copper bars, and are welded to the steel girder 16 or the psc girder 16 of the bridge. Precast concrete panel equipped with steel connection hooks 15 used for fastening the "c" shaped shear connector and the turnbuckle 11 for integration behavior with the connection fixing reinforcing bar 12 and the field-strength concrete 31 10) and the precast concrete panel 10 is fixed to the steel girder (16) or psc girder (16) of the bridge by welding joint, turnbuckle 11 fastening, etc., the precast concrete panel (10) itself is a permanent formwork And it relates to a construction method to be a load supporting bracket.

종래의 교량 슬래브 난간 및 중분대 캔틸레버부 시공방법은 도1에 도시된 바와 같이 상부 슬래브 및 작업하중을 지지 위하여 교량의 강재거더(16) 또는 psc거더(16) 측면에 ㅁ자형, ㄴ자형 및 원형 등의 강재와 볼트, 너트(26)을 조립하여 수직재(30), 수평재(27), 사재(28) 등으로 구성되는 삼각형 형태의 가설 강재 브라켓을 제작 설치한 후, 플랫 타이(Flate Tie)로 고정시키고 상부에 장선(29)과 합판거푸집(25)을 깔아 상부 현장치기콘크리트(31) 작업을 시공하는 합판거푸집과 강재 동바리 합성공법이 주로 사용되어 왔다.Conventional bridge slab balustrade and mid-sized cantilevered construction methods are shown in FIG. 1 with a squirrel, b-shaped and round shape on the side of steel girder 16 or psc girder 16 of the bridge to support the upper slab and working load. After assembling the steel, bolts and nuts 26, and making and installing triangular temporary steel brackets composed of vertical material 30, horizontal material 27, yarn material 28, and the like, and then using a flat tie. Plywood formwork and steel club composite construction method of fixing and laying the joist 29 and plywood formwork 25 on the upper spot-treating concrete 31 work has been mainly used.

그로 인하여, 가설 거푸집과 동바리 설치 및 해체 작업시 고공에서 작업을 시행하는 관계로 안전사고 위험이 상존하고, 하부도로를 차단하거나 교통을 우회시키는 등의 교통제한 조치가 필요하였으며, 복잡한 작업공종으로 인해 공기가 많이 소요되고 작업효율이 떨어지는 등의 문제점이 있었다.Therefore, there is a risk of safety accidents due to the work performed at high altitude during the installation and dismantling of temporary formwork and clubs, and the traffic restriction measures such as blocking the lower road or bypassing traffic were necessary. There was a problem such as a lot of air and work efficiency is low.

본 발명은 상기된 바와 같은 문제점을 해결하기 위한 것으로서, 교량 슬래브의 난간 및 중분대의 캔틸레버부 시공시 별도의 가설 거푸집 및 동바리 설치 없이 작업할 수 있도록 하기 위하여 인장주철근(19), 전단연결재(14), 연결고리(15) 및 연결고정용 철근(12) 등이 부착된 "ㄴ"자형태의 프리캐스트 콘크리트 패널(10)을 미리 제작하여 교량의 강재거더(16) 또는 psc거더(16)에 용접이음 및 턴버클(11) 체결 등으로 견고하게 고정하여 영구거푸집 및 하중지지 브라켓 역할을 수행토록 하는 동시에, 상부에 타설되는 현장치기콘크리트(31)와 거동이 일체화 되도록 하는 시공방법을 제공하는데 목적이 있다.The present invention is to solve the problems as described above, in order to be able to work without the installation of additional temporary formwork and copper bar during the construction of the cantilever part of the bridge slab and middle components of the bridge slab, the tension cast iron 19, the shear connector (14) , Pre-fabricated concrete panel 10 of "b" shape attached with connecting ring 15 and connecting fixing bars 12 is welded to steel girder 16 or psc girder 16 of the bridge. The purpose of the present invention is to provide a construction method for firmly fixing joints and turnbuckles 11 to perform permanent dies and load supporting brackets, and at the same time to integrate the action with the field-casting concrete 31 placed on the top. .

이하, 첨부도면에 도시되는 구체적인 실시 예를 통하여 본 발명의 프리캐스트 콘크리트 패널(10)과 그를 이용한 교량슬래브 난간 및 중분대의 캔틸레버부 무지보 시공방법을 상세히 설명하면 다음과 같다.Hereinafter, the precast concrete panel 10 of the present invention and the bridge slab railing and the cantilever unit construction method of the middle component using the same through the specific embodiment shown in the accompanying drawings in detail as follows.

본 발명은 교량 슬래브 난간 및 중분대의 캔틸레버부 시공시 주로 적용되어 지며, 도3 및 도4에 예시된바와 같이 현장치기콘크리트(31)와의 일체화 거동되도록 하는 "ㄷ"자 형태의 전단연결재(14), 교량의 강재거더(16) 또는 psc거더(16)에 용접되는 연결고정용 철근(12) 및 턴버클(11) 등으로 강결처리시 이용되는 연결고리(15) 등을 부착하여 제작되는 "ㄴ"자 형태의 프리캐스트 콘크리트 패널(10)과, 도2 및 도10에 도시된바와 같이 프리캐스트 콘크리트 패널(10)의 연결고정용 철근(12)을 교량의 강재거더(16) 또는 psc거더(16)의 전단연결재(13) 및 교축방향 보강철근(17)에 용접이음하여 서로 고정시키는 시공방법, 도2 및 도10에 예시된 바와 같이 강재거더(16) 또는 psc거더(16)의 전단연결재(13)에 프리캐스트 콘크리트 패널(10)을 턴버클(11) 체결하거나 와이어 및 철선 등으로 체결하여 고정시키는 시공방법을 기술상의 특징으로 한다.The present invention is mainly applied in the construction of the bridge slab railings and cantilever part of the middle component, as shown in Figures 3 and 4, the "c" shaped shear connection member 14 to be integrated with the field-driven concrete 31. "B" produced by attaching the connecting ring 15 used for the steelmaking process, such as connecting fixing reinforcing bars 12 and turnbuckles 11 welded to the steel girder 16 or psc girder 16 of the bridge As shown in FIGS. 2 and 10, the reinforcing bar 12 for fixing the precast concrete panel 10 is formed of a steel girder 16 or a psc girder 16 of a bridge. Construction method of welding the joint to the shear connector 13 and the axial reinforcement reinforcing bar 17 of each other, the shear connector of the steel girder 16 or psc girder 16 as illustrated in Figures 2 and 10 13) fastening the precast concrete panel 10 to the turnbuckle (11) or wire and wire The construction method of fastening and fastening by means of technical features.

본 발명의 프리캐스트 콘크리트 패널(10)은 도3 및 도4에 도시된 바와 같이 한쪽 면을 직각으로 절곡시켜 전체적으로 "ㄴ"자의 단면형상을 가지며, 수평바닥판(33) 내부에는 휨모멘트와 전단력에 저항하는 인장주철근(19)과 현장치기콘크리트(31)와 일체화 거동토록 하는 "ㄷ"자형의 철근 전단연결재(14)가 매입되거나 배근되고. 인장주철근(19) 상부에는 응력을 보강하고 균등하게 분포시키기 위하여 철선(32)으로 구성되는 격자모양의 와이이메쉬를 부착시켜 제작되어 진다.Precast concrete panel 10 of the present invention has a cross-sectional shape of "b" overall by bending one side at a right angle as shown in Figures 3 and 4, the bending moment and shear force inside the horizontal bottom plate 33 Reinforcement shear connector (14) of "c" shaped to be integrated with the tensile cast reinforcing bar (19) and the field-cut concrete (31) to resist the purchase or reinforcement. The upper portion of the tensile cast iron 19 is made by attaching a lattice-shaped Waimesh composed of iron wires 32 in order to reinforce the stress and evenly distributed.

이와 아울러, 본 발명의 프리캐스트 콘크리트 패널(10)에는 강재거더(16) 또는 psc거더(16)의 전단연결재(13) 및 교축방향 보강철근(17)과 용접 고정되는 연강재질의 연결고정용 철근(12) 또는 강재을 일정 간격으로 배근하여 수평바닥판(33) 외부로 일정길이 만큼 노출되게 제작하고, 수평바닥판(33)과 수직바닥판(34)이 만나는 헌치부(18)에는 교량의 강재거더(16) 또는 psc거더(16)와 턴버클(11) 체결하 거나 와이어 및 철선 결속 등으로 고정시킬 때 이용되는 삼각형 및 원형 등의 형태로 만들어진 강재 연결고리(15)가 도7과 도8에 예시된 바와 같이 설치된다.In addition, the precast concrete panel 10 of the present invention is connected to the shear connection material 13 and the axial reinforcement reinforcing bar 17 of the steel girder 16 or psc girder 16, the connection steel reinforcing rod of the soft steel material (12) or by reinforcing the steel at regular intervals to produce a certain length exposed to the outside of the horizontal bottom plate 33, the steel plate of the bridge in the haunting portion 18 where the horizontal bottom plate 33 and the vertical bottom plate 34 meet. Steel linkages 15 made in the form of triangles and circles, which are used to fasten the girder 16 or the psc girder 16 and the turnbuckle 11 or secure them with wire and wire binding, are illustrated in FIGS. 7 and 8. It is installed as illustrated.

또한, 수직바닥판(34) 상단에는 도2 및 도8에 예시된바와 같이 가설안전대(21) 지주 설치시 이용되는 일정길이 및 규격의 철근을 돌출시키거나 강관(20)을 매입시켜 제작된다.In addition, the top of the vertical bottom plate 34 is produced by protruding the reinforcement of a certain length and standard used when installing the temporary safety zone 21, as illustrated in FIGS. 2 and 8 or by purchasing a steel pipe 20.

본 발명의 시공방법은 도3 및 도4에 도시된바와 같은 프리캐스트 콘크리트 패널(10)을 미리 제작하여 현장에서 크레인으로 도2, 도5 및 도10에 예시된 바와 같이 교량의 강재거더(16) 또는 psc거더(16) 상단에 캔틸레버 형태가 되도록 일정폭 만큼 겹쳐치게 수평으로 거치한 후, 크레인이 프리캐스트 콘크리트 패널(10)을 잡고 있는 상태에서 단부에 반원형의 연결고리(24)가 달려 있고 중간몸체(22)와의 연결부분이 나사모양(23) 처리되어 회전시킬수 있도록 만들어진 턴버클(11)로 강재거더(16) 또는 psc거더(16)의 전단연결재(13)와 연결고리(15)를 서로 체결하여 고정시킨다.The construction method of the present invention is a pre-cast concrete panel 10 as shown in Figures 3 and 4 in advance to the steel girder 16 of the bridge as illustrated in Figure 2, 5 and 10 with a crane in the field Or horizontally mounted on the top of the psc girder 16 so as to overlap a certain width to form a cantilever, and a semi-circular linkage 24 is attached to the end while the crane is holding the precast concrete panel 10. The connecting portion 13 and the connecting ring 15 of the steel girder 16 or the psc girder 16 are connected to each other by a turnbuckle 11 which is connected to the intermediate body 22 to be rotated by being screwed 23. Tighten and fix.

상기의 작업을 반복하여 여러개의 프리캐스트 콘크리트 패널(10)을 연속 설치한 후, 턴버클(11)의 중간몸체를 조금씩 회전시켜 위치 및 선형을 조정하면서 프리캐스트 콘크리트 패널(10)에 부착된 연결고정용 철근(12)을 강재거더(16) 또는 psc거더(16) 상단의 전단연결재(13) 및 교축방향 보강철근(17)에 용접이음하여 상부의 현장치기콘크리트 작업시 영구거푸집 및 하중지지 브라켓 역할을 하는 슬래브 바닥판을 완성시킨다.After repeating the above operations to install a number of precast concrete panel 10 continuously, by rotating the intermediate body of the turnbuckle little by little to adjust the position and linear connection fixing attached to the precast concrete panel 10 Welded steel reinforcing rod 12 to shear girder 13 and axial reinforcing reinforcing bar 17 on top of steel girder 16 or psc girder 16 to serve as permanent formwork and load-bearing brackets when working on the top of the field drill concrete. Complete the slab bottom plate.

여기에서, 교축방향 보강철근(17)은 도2에 예시한바와 같이 강재거더(16) 또 는 psc거더(16)의 전단연결재(13) 내부에 프리캐스트 콘크리트 패널(10)의 연결고정용 철근(12) 높이로 미리 설치된다.Here, the axial reinforcement reinforcing bar 17 is connected to the reinforcing bars of the precast concrete panel 10 inside the shear connector 13 of the steel girder 16 or psc girder 16 as illustrated in FIG. (12) Pre-installed at a height.

상기의 작업이 완료되면 턴버클(11)은 현장치기콘크리트(31) 내부에 매입하거나 PC강연선 와이어 및 철선 등으로 대체 설치할 수도 있다.When the above operation is completed, the turnbuckle 11 may be purchased in the field-casting concrete 31, or may be replaced by PC strand wire and wire.

상기의 프리캐스트 콘크리트 패널(10)로 시공되는 교량 슬래브의 난간 및 중분대 캔틸레버부의 상부 현장치기콘크리트(31)의 철근배근은 구조계산 검토결과에 따라 철근 규격과 간격을 조정하여 시공하는 방법을 사용할 수도 있다.The reinforcement of the upper slag concrete 31 of the bridge slab and the middle component cantilever part of the bridge slab constructed by the precast concrete panel 10 may be constructed by adjusting the reinforcing bar size and spacing according to the structural calculation review results. It may be.

상기의 프리캐스트 콘크리트 패널(10)을 교량의 psc거더(16) 또는 강재거더(16)에 도2 및 도10에 도시한바와 같이 용접이음 및 턴버클(11) 체결 등으로 견고하게 고정시킬 경우, 영구거푸집과 하중지지 브라켓 역할을 수행하면서 별도의 가설 거푸집 및 동바리 설치 없이 교량 슬래브의 난간 및 중분대 캔틸레버부 시공을 가능케 하여 추락 등으로 인한 안전사고 예방과 공기단축, 경제성 및 시공성 향상을 도모할 수 있다.When the precast concrete panel 10 is firmly fixed to the psc girder 16 or the steel girder 16 of the bridge by welding joint and turnbuckle 11 fastening as shown in FIGS. 2 and 10, It can serve as a permanent formwork and load supporting bracket while installing railings and middle squad cantilever sections of bridge slabs without installing additional temporary formwork and bundling, thereby preventing safety accidents caused by falling and improving air shortening, economic efficiency and constructability. have.

Claims (6)

전체적으로 "ㄴ"자의 단면형상을 가지며, 교량의 psc거더(16) 또는 강재거더(16)에 용접이음되는 연강재질의 연결고정용 철근(12) 또는 강재를 수평바닥판(33)의 인장주철근(19)에 겹이음하거나 인장주철근(19) 사이에 일정길이 및 간격으로 배근하여 노출시키고, 턴버클(11) 강결시 이용되는 원형 및 삼각형 등의 강재 연결고리(15)를 절곡부 헌치(18)에 설치하여 제작하는 것을 특징으로 하는 프리캐스트 콘크리트 패널(10).It has a cross-sectional shape of "b" as a whole, and is connected to the reinforcing bar 12 or steel of the mild steel material welded to the psc girder 16 or the steel girder 16 of the bridge tension cast steel ( 19) or overlapping the tensile cast steel (19) between the reinforcement in a certain length and spacing and exposed, and the steel ring (15), such as round and triangle used when the turnbuckle 11 is hardened to the bent haunt (18) Precast concrete panel 10, characterized in that the installation by making. "ㄴ"자형의 프리캐스트 콘크리트 패널(10)의 수직바닥판(34) 상단에 가설안전대(21) 지주 설치시 이용되는 원형 또는 사각 형태 등의 철재 돌출물을 설치하거나 강관(24)을 매입하는 것을 특징으로 하는 프리캐스트 콘크리트 패널(10).Installing steel protrusions or installing steel protrusions, such as circular or square shapes, used for installing temporary safety guards 21 on top of vertical bottom plates 34 of the "b" shaped precast concrete panels 10. Characterized by a precast concrete panel (10). "ㄴ"자형의 프리캐스트 콘크리트 패널(10)의 수평바닥판(33)에 "ㄷ"자형태의 전단연결재(14)가 부착되고 인장주철근(19) 상부에 와이어메쉬(32)가 설치되어진 프리캐스트 콘크리트 패널(10).A pre-formed shear connector (14) is attached to the horizontal bottom plate (33) of the "b" shaped precast concrete panel (10) and a wire mesh (32) is installed on the tensile cast steel (19). Precast concrete panels (10). 교량 슬래브의 난간 및 중분대 캔틸레버부 시공시, 상기의 프리캐스트 콘크리트 패널(10)에 부착된 연결고정용 철근(12)을 교량의 psc거더(16) 또는 강재거더(16)의 전단연결재(13) 및 교축방향 보강철근(17)에 용접이음시켜 고정되도록 함을 특징으로 하는 시공방법.When constructing the bridge slab and the middle component cantilever part of the bridge slab, the connecting fixing reinforcing bar 12 attached to the precast concrete panel 10 is connected to the shear connector 13 of the psc girder 16 or the steel girder 16 of the bridge. ) And the construction method characterized in that the welding joint to the axial reinforcement reinforcing bar (17) to be fixed. 상기의 프리캐스트 콘크리트 패널(10)과 교량의 psc거더(16) 또는 강재거더(16)의 전단연결재(13)를 턴버클(11) 체결하거나 와이어 및 철선 결속하여 고정되도록 함을 특징으로 하는 교량슬래브 캔틸레버부의 시공방법.Bridge slab characterized in that the pre-cast concrete panel 10 and the psc girder 16 of the bridge or the shear connector 13 of the steel girder 16 is fastened by the turnbuckle 11 or the wire and wire binding Construction method of cantilever part. 교량의 psc거더(16) 또는 강재거더(16)의 전단연결재(13) 내부에 연강재질의 교축방향 보강철근(17)을 미리 배근하여 프리캐스트 콘크리트 패널(10)의 연결고정용 철근(12)과 용접이음 되도록 함을 특징으로 하는 시공방법.Reinforcing bars 12 for connection of precast concrete panels 10 by pre-stretching axial reinforcing bars 17 of mild steel material inside the shear connector 13 of the bridge psc girder 16 or steel girder 16. Construction method characterized in that to be welded with.
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