KR100966313B1 - Mold for bridge floor having steel wire guide structure - Google Patents

Mold for bridge floor having steel wire guide structure Download PDF

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Publication number
KR100966313B1
KR100966313B1 KR1020090088970A KR20090088970A KR100966313B1 KR 100966313 B1 KR100966313 B1 KR 100966313B1 KR 1020090088970 A KR1020090088970 A KR 1020090088970A KR 20090088970 A KR20090088970 A KR 20090088970A KR 100966313 B1 KR100966313 B1 KR 100966313B1
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KR
South Korea
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steel wire
bridge deck
holding
bridge
formwork
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KR1020090088970A
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Korean (ko)
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이호건
허당
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동방엔지니어링 주식회사
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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
    • E01D2/00—Bridges characterised by the cross-section of their bearing spanning structure
    • 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

Abstract

PURPOSE: A form for a bridge deck with a steel wire guide structure is provided to uniformly maintain the tensed state of a steel wire by horizontally guiding the steel wire and to improve construction performance when a bridge deck is formed. CONSTITUTION: A form(10) for a bridge deck with a steel wire guide structure comprises a guide hole(11) and a connecting piece(12). Steel wires(W) penetrate through the guide hole. The connecting piece rotatably supports one side of a holding-up device(20) using a hinge pin(H). The holding-up device horizontally guides the steel wires in which the ends are drawn out from a bridge deck(2). Rollers(24) are arranged between guard plates(22) in the holding-up device.

Description

강선 가이드구조를 갖는 교량상판용 거푸집{Mold for bridge floor having steel wire guide structure}Form for bridge floor having steel wire guide structure {Mold for bridge floor having steel wire guide structure}

본 발명은 교량상판용 거푸집에 관한 것으로서, 좀더 상세하게는 교량상판의 성형제작과정에서 내측에 매입되어 양측으로 인출되는 강선을 성형에 사용되는 거푸집을 통해서 수평으로 유도시켜 인장함으로써, 교량상판의 성형제작에 따른 시공성을 향상시킬 수 있도록 한 강선 가이드구조를 갖는 교량상판용 거푸집에 관한 것이다.The present invention relates to a formwork for bridge deck, and more specifically, by forming a bridge deck by pulling the steel wire which is embedded inside and pulled out to both sides horizontally through the formwork used for molding, It relates to a formwork for bridge deck having a steel wire guide structure to improve the workability according to the manufacturing.

일반적으로 교량공사에서 사용되고 있는 피씨 빔(Pc beam), 피에스씨 박스(P.S.C. Box)는 미리 만들어진 상판지지용 보(Beam)를 의미하는 것으로서, 대형 부재의 외력에 의한 인장력을 상쇄하기 위하여 PC강선(이하, '강선'이라 칭함)을 사용하여 인위적으로 미리 콘크리트에 스트레스(Pre stress)를 주어 균열이 발생하지 않고, 지지력을 크게 한 구조이다.In general, a PC beam and a PSC box, which are used in a bridge construction, mean a beam for supporting a plate, which is made in advance, and a PC steel wire ( Hereinafter, it is called 'steel wire') to artificially give a pre-stress (pre-stress) to the concrete in advance to prevent the cracks, and to increase the support capacity.

이는 프리텐션(Pre tension)공법과 포스트 텐션(Post tension)공법으로 나누 어 지며, 교량 상판과 같이 큰 보는 콘크리트를 타설하기 전에 미리 시드(sheath)를 설치한 다음, 콘크리트의 타설 후 경화된 다음 그 안에 넣어진 강선을 소정의 인장력으로 인장시키며, 강재의 부식을 방지하고 강선과 콘크리트를 부착시키기 위하여 무수축 모르타르(mortar)를 주입(grouting)하는 방식인 포스트 텐션방식을 적용하는 것이 일반적이다.It is divided into pre-tension and post-tension method, and it is possible to install a seed before casting large-size concrete such as bridge deck, then harden after pouring concrete. It is common to apply a post-tension method, which is a method of pulling the steel wires encased to a predetermined tensile strength, and injecting non-contraction mortar in order to prevent corrosion of the steel and to bond the steel wires and concrete.

교량상판에 적용되어 오고 있는 프리텐션방식은 강선을 제조하는 공장에서 강선에 미리 인장력을 주어 긴장 해 놓고 콘크리트를 타설 한 다음 콘크리트가 경화된 다음 강선의 인장력을 서서히 풀어서 콘크리트에 피에스(P.S: pre stress)를 주어 교량상판을 구축하도록 하고 있다.The pretension method that has been applied to bridge decks is prestressed by pre-tensioning the steel wire in the steel wire manufacturing factory, and after placing concrete, the concrete hardens, and then slowly releases the tensile force of the steel wire to prestress the concrete (PS). ) To build bridge decks.

상기와 같이 강선의 적용과 함께 콘크리트 타설로서 성형제작되는 교량상판은 도 1에서 도시한 바와 같이, 베이스(1)에 교량상판(2)이 성형제작된다.As shown in FIG. 1, the bridge top plate 2 is molded and formed on the base 1 as shown in FIG. 1.

상기 교량상판(2)의 길이방향 측부는 도 2에서 개략적으로 도시된 바와 같이 상판의 설계에 따라 지면으로부터 설치된 베이스(1)와 함께 교량상판(2)의 이음부분이 되는 정면, 배면으로부터는 교량상판의 단면형상과 동일한 형상으로 양측을 성형시키기 위해 별도로 제작된 거푸집(10)이 위치되어 제작되어질 교량상판(2)의 단부를 성형을 맡게 된다.As shown schematically in FIG. 2, the longitudinal side of the bridge top plate 2 is a bridge from the front side and the rear side which becomes a joint portion of the bridge top plate 2 with the base 1 installed from the ground according to the design of the top plate. In order to mold both sides in the same shape as the cross-sectional shape of the top plate, the separately formed formwork 10 is placed to take charge of the end portion of the bridge top plate 2 to be manufactured.

통상적으로 교량상판의 형태를 유지하는 철골구조와 함께 상술한 바의 강선이 배치되어 상기 교량상판(2)의 정,배면에 설치되는 거푸집(10)을 통해 양측으로 경사지게 인출되고, 인출된 강선은 베이스의 일측에 설치되는 반력대(3)와 인장장치(4)를 통해 콘크리트의 타설 후 경화되기 이전까지의 강선(W)을 인장시켜 주는 방식으로서, 타설된 콘크리트의 경화후에는 인장된 강선을 서서히 풀어줌으로써, 교량상판의 내구성을 향상시킬 수 있도록 하고 있다.Typically, the steel wire as described above together with the steel frame structure to maintain the shape of the bridge top plate is disposed to be drawn out inclined to both sides through the formwork (10) installed on the front, rear of the bridge top plate 2, the drawn steel wire Through the reaction table (3) and the tensioning device (4) installed on one side of the base to tension the steel wire (W) before the concrete is hardened after the casting of the concrete. By slowly releasing, the durability of the bridge deck can be improved.

또한, 상기와 같은 강선의 인장은 경사진 상태에서 작업되어야 하므로, 이에 대한 반력대의 설치와 인장장치의 설치범위가 높아져야 하고, 이들을 구축하는 별도의 구축장비 또한 부가적으로 설치되어야 하는 단점이 있었다. In addition, since the tension of the steel wire is to be worked in an inclined state, the installation of the reaction force and the installation range of the tension device for this should be increased, and additional construction equipment for building them also had the disadvantage that additional installation.

본 발명은 상기한 문제점을 해결하기 위하여 안출된 것으로, 교량상판의 성형제작과정에서 내측에 매입되어 양측으로 인출되는 강선을 성형에 사용되는 거푸집을 통해서 수평으로 유도시켜 인장함으로써, 반력대를 통한 인장장치의 인장을 수평으로 작용하여 강선의 균등한 인장상태를 유지시킴은 물론, 교량상판의 성형제작에 따른 시공성을 향상시킬 수 있도록 하는데 그 목적이 있다.The present invention has been made in order to solve the above problems, by pulling the steel wire which is embedded in the inner side in the molding manufacturing process of the bridge deck and drawn out to both sides through the formwork used for molding, the tension through the reaction table The purpose is to maintain the uniform tensile state of the steel wire by acting the tension of the device horizontally, as well as to improve the workability according to the molding of the bridge deck.

상기 목적을 달성하기 위한 본 발명에 의하면, 베이스의 상부로부터 교량상판이 제작되기 위해 전,후측에 각각 설치되어 교량상판의 정,배면을 성형을 담당하는 교량상판용 거푸집에 있어서,According to the present invention for achieving the above object, in the formwork for the bridge deck to form the front and rear of the bridge deck to form the bridge top plate from the top of the base, respectively, in order to form,

상기 거푸집 내에는 교량상판의 내부로부터 매입되어 그 단부가 인출되는 강선을 수평으로 안내 유도하도록 상호 대응되는 가드플레이트 사이에 롤러가 배열된 홀딩 업 디바이스가 설치되는 한편, 일측에 강선이 통과되는 안내공이 형성되며, 홀딩 업 디바이스의 일측을 회동가능하게 힌지핀으로서 관통 지지하기 위한 연결편이 상호 대응되게 구비된 것을 특징으로 한다.In the formwork, a holding-up device, in which rollers are arranged, is installed between guard plates which are guided horizontally to guide the steel wires which are embedded from the inside of the bridge deck and the ends thereof are drawn out. It is formed, characterized in that the connecting piece for supporting the one side of the holding-up device as a hinge pin rotatably provided with each other.

삭제delete

본 발명에 따른 교량상판용 거푸집은, 그 내부에 구비된 홀딩 업 디바이스를 통해 제작되어지는 교량상판의 전후측에서 인출된 강선(와이어)을 수평으로 안내 유도시켜 줌으로써, 일측에 설치되는 반력대를 토대로 인장장치의 수평으로 인장시킴으로써, 균등한 인장력으로 고정하여 교량상판의 성형에 따른 시공성을 높일 수 있는 효과가 있다.Formwork for bridge deck according to the present invention guides the steel wire (wire) drawn from the front and rear sides of the bridge deck to be produced through the holding up device provided therein in a horizontal direction, thereby providing a reaction force installed on one side By stretching the tensioning device horizontally on the basis, there is an effect that can be fixed with an equal tensile force to increase the workability according to the molding of the bridge deck.

이하, 첨부된 도면을 참조하여 본 발명의 구성을 보다 상세히 설명하면 다음과 같다.Hereinafter, the configuration of the present invention with reference to the accompanying drawings in more detail.

첨부된 도 3은 본 발명인 교량상판용 거푸집이 적용되는 상태를 도시한 사시도이고, 도 4는 본 발명인 강선 인장시스템을 개략적으로 도시한 측면도이며, 도 5는 본 발명에 따른 홀딩 업 디바이스가 거푸집 내에 설치되는 상태를 도시한 사시도이고, 도 6은 본 발명에 따른 홍딩 업 디바이스를 분리하여 도시한 사시도이며, 도 7은 본 발명에 따른 홀딩 업 디바이스가 적용된 거푸집을 통해 강선이 안내된 상태를 예시한 종단면도이다.3 is a perspective view showing a state in which the present invention the formwork for the bridge deck is applied, Figure 4 is a side view schematically showing the steel wire tensioning system of the present invention, Figure 5 is a holding up device according to the present invention in the formwork Figure 6 is a perspective view showing the installed state, Figure 6 is a perspective view showing a separate red-up device according to the present invention, Figure 7 illustrates a state in which the steel wire is guided through the formwork to which the holding up device according to the present invention is applied Longitudinal section.

본 발명은, 베이스(1)의 상부로부터 교량상판(2)이 제작되기 위해 전,후측에 각각 설치되어 교량상판의 정,배면을 성형을 담당하는 교량상판용 거푸집(10)에 있어서,In the present invention, in the bridge deck 10 for forming the top and rear of the bridge top plate is formed on the front and rear, respectively, in order to produce the bridge top plate 2 from the upper portion of the base (1),

상기 거푸집(10) 내에는 교량상판(2)의 내부로부터 매입되어 그 단부가 인출되는 강선(W)을 수평으로 안내 유도하도록 상호 대응되는 가드플레이트(22) 사이에 롤러(24)가 배열된 홀딩 업 디바이스(20)가 설치된다.Holding the roller 24 is arranged between the guard plate 22 to guide the steel wire (W), which is embedded from the inside of the bridge deck (2) and the end is drawn out in the form (10) horizontally guided The up device 20 is installed.

상기 거푸집(10)은 일측에 강선(W)이 통과되는 안내공(11)이 형성되는 한편, 홀딩 업 디바이스(20) 일측을 회동가능하게 힌지핀(H)으로서 관통 지지하기 위한 연결편(12)이 상호 대응되게 구비된다.The formwork 10 is formed with a guide hole 11 through which the steel wire W passes on one side thereof, while the connecting piece 12 for penetrating and supporting one side of the holding-up device 20 as the hinge pin H is rotatable. This is provided to correspond to each other.

도면중 미설명부호 3은 반력대를 나타내고, 부호 4는 인장장치를 개략적으로 아타낸다.In the figure, reference numeral 3 denotes a reaction zone, and 4 denotes a tension device.

이와 같이 홀딩 업 디바이스(20)가 장착된 거푸집(10)은 베이스(1)로부터 제작되어지는 교량상판(2)의 전후측에 각각 대응되게 위치된 상태에서 베이스로측으로부터는 홀딩다운 디바이스(도면에서 생략함)를 이용하여 강선(W)을 수평선상에서 그 양측이 경사지도록 하고, 경유하도록 한 상태에 강선의 단부가 외측으로 향하도록 하며, 교량상판의 철골구조물의 진입과 아울러 강선을 인장시킨 상태에 콘크리트 타설작업된다. In this way, the formwork 10 on which the holding up device 20 is mounted is positioned to correspond to the front and rear sides of the bridge top plate 2 manufactured from the base 1, and is held down from the base furnace side (in the drawing). The steel wires (W) are inclined on both sides of the horizontal line, and the ends of the steel wires face outwards in a state where they pass through, and the steel wires are tensioned together with the entry of the steel structure of the bridge deck. Concrete is poured.

상기 거푸집(10) 내에 설치된 홀딩 업 디바이스(20)는 제작되어지는 교량상판(2)의 외측으로 충분히 인출되며, 각 강선의 단부는 거푸집(10)의 안내공(11)을 통해 그 내측에 배치된 홀딩 업 디바이스측 롤러(24)를 경유하도록 한다.The holding up device 20 installed in the formwork 10 is sufficiently drawn out to the outside of the bridge top plate 2 to be manufactured, and the end of each steel wire is disposed inside thereof through the guide hole 11 of the formwork 10. The holding-up device side roller 24.

상기 홀딩 업 디바이스(20)는 거푸집(10)에 대해 그 일측이 힌지핀(H)으로 결합되어 있어, 전반적으로 거푸집의 연결편(12)으로부터 회동가능한 상태이나, 롤러를 경유하는 강선의 수평을 유지시켜 준다. The holding up device 20 is coupled to the die 10 by one side thereof with a hinge pin (H), so as to be rotatable from the connecting piece 12 of the die as a whole, or to maintain the level of the steel wire via the roller. Let it be.

한편, 상기 홀딩 업 디바이스(20)의 롤러(24)를 거점으로 수평으로 방향이 전환된 강선(W)은 굽힘이 자유로운 와이어 형태이기 때문에 그대로 반력대(3)를 수 평으로 통과하도록 하며, 상기 반력대(30)의 후방에서 동원되는 인장장치(4)로서 수평으로 인출된 강선(W)에 인장력을 가하여 고정한 상태에서 콘크리트 타설과 경화로서 교량상판의 성형제작을 완성한다.On the other hand, the steel wire (W) that is horizontally turned around the roller 24 of the holding up device 20 is a bent wire form, so as to pass the reaction table (3) horizontally as it is, As the tensioning device 4 mobilized at the rear of the reaction table 30, a tensioning force is applied to the steel wire W drawn horizontally, and then the molding of the bridge deck is completed by concrete placing and hardening.

수평으로 인장시키는 강선의 인장작업은 인장장치(4)를 통해 반력대(3)를 토대로 수평으로 인장장치를 고정시킨 상태에서 작업이 한결 수월해지고, 이는 교량상판의 제작기간이 짧아지는 이점이 제공된다. The tensioning of the steel wire to be stretched horizontally is made easier while the tensioning device is fixed horizontally based on the reaction table 3 through the tensioning device 4, which provides the advantage of shortening the manufacturing period of the bridge deck. do.

상기와 같이 강선의 프리텐션 과정후 콘크리트의 타설후 양생시 콘크리트가 경화된 다음 강선은 인장장치의 인장해제로서 인장력을 서서히 풀어주면, 강선은 콘크리트의 응집력으로서 보다 내구성이 있는 교량상판으로 구축할 수 있고, 이러한 작업은 기존 인장 시스템에 비해 안정되고, 신속하게 이루어진다.As above, when concrete is cured at the time of curing after pre-tensioning of steel wire, the steel wire is released as tension release device. Then, the steel wire can be constructed with more durable bridge deck as cohesive force of concrete. This operation is more stable and faster than conventional tensioning systems.

도 1은 일반적으로 제작되는 교량상판을 도시한 사시도,1 is a perspective view showing a bridge deck generally manufactured;

도 2는 종래 교량상판의 제작상에 따른 강선 인장시스템을 도시한 개략적인 구성도,Figure 2 is a schematic configuration diagram showing a steel wire tensioning system according to the conventional manufacturing of the bridge deck;

도 3은 본 발명인 교량상판용 거푸집이 적용되는 상태를 도시한 사시도,Figure 3 is a perspective view showing a state in which the present invention the formwork for the bridge deck plate,

도 4는 본 발명인 강선 인장시스템을 개략적으로 도시한 측면도,Figure 4 is a side view schematically showing a wire tension system of the present invention,

도 5는 본 발명에 따른 홀딩 업 디바이스가 거푸집 내에 설치되는 상태를 도시한 사시도,5 is a perspective view showing a state in which the holding-up device according to the present invention is installed in the formwork;

도 6은 본 발명에 따른 홀딩 업 디바이스를 분리하여 도시한 사시도,6 is a perspective view separately showing a holding up device according to the present invention;

도 7은 본 발명에 따른 홀딩 업 디바이스가 적용된 거푸집을 통해 강선이 안내된 상태를 예시한 종단면도. Figure 7 is a longitudinal sectional view illustrating a state in which the steel wire is guided through the formwork to which the holding up device according to the present invention is applied.

◎ 도면의 주요부분에 대한 부호설명 ◎◎ Explanation of code for main part of drawing ◎

1: 베이스 2: 교량상판1: base 2: bridge deck

10: 거푸집 11: 안내공10: Die 11: Guide

12: 연결편 20: 홀딩 업 디바이스12: connecting piece 20: holding up device

22: 가드플레이트 24: 롤러22: guard plate 24: roller

H: 힌지핀 W: 강선H: Hinge pin W: Liner

Claims (2)

베이스(1)의 상부로부터 교량상판(2)이 제작되기 위해 전,후측에 각각 설치되어 교량상판의 정,배면을 성형을 담당하는 교량상판용 거푸집(10)에 있어서,In the formwork for bridge deck 10, which is installed on the front and rear sides, respectively, to form the front and rear surfaces of the bridge deck to form the bridge deck 2 from the top of the base 1, 상기 거푸집(10) 내에는 교량상판(2)의 내부로부터 매입되어 그 단부가 인출되는 강선(W)을 수평으로 안내 유도하도록 상호 대응되는 가드플레이트(22) 사이에 롤러(24)가 배열된 홀딩 업 디바이스(20)가 설치되는 한편, 일측에 강선(W)이 통과되는 안내공(11)이 형성되며, 홀딩 업 디바이스(20)의 일측을 회동가능하게 힌지핀(H)으로서 관통 지지하기 위한 연결편(12)이 상호 대응되게 구비된 것을 특징으로 하는 강선 가이드구조를 갖는 교량상판용 거푸집.Holding the roller 24 is arranged between the guard plate 22 to guide the steel wire (W), which is embedded from the inside of the bridge deck (2) and the end is drawn out in the form (10) horizontally guided While the up device 20 is installed, a guide hole 11 through which the steel wire W passes is formed on one side, and for supporting the one side of the holding up device 20 as a hinge pin H so as to be rotatable. Formwork for bridge deck having a steel wire guide structure, characterized in that the connection piece 12 is provided to correspond to each other. 삭제delete
KR1020090088970A 2009-09-21 2009-09-21 Mold for bridge floor having steel wire guide structure KR100966313B1 (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100995856B1 (en) 2010-07-07 2010-11-22 동방엔지니어링 주식회사 Holding down device base
KR101144569B1 (en) 2011-05-20 2012-05-11 (주)홍지디씨에스 Prestressed concrete slab using coupler and blockout and construction method thereof
KR101162590B1 (en) * 2011-07-18 2012-07-04 동방엔지니어링 주식회사 Reaction force steel apparatus for manufacturing bridge decks
KR101305917B1 (en) * 2011-06-27 2013-09-09 동도산업 주식회사 Bulk head for precast box girder mould

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JPH06322722A (en) * 1993-05-18 1994-11-22 Shimizu Corp Delivery construction method of stressed-ribbon bridge and pc floor slab unit used therefor
KR200233171Y1 (en) * 2000-11-30 2001-09-26 주식회사 탑스브릿지 groud bridge
KR100499265B1 (en) * 2003-03-14 2005-07-01 동방엔지니어링 주식회사 Holding down device
KR100830630B1 (en) 2007-05-21 2008-05-19 대림산업 주식회사 Counter-tensioning apparatus for prestressed beams under changing loads

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06322722A (en) * 1993-05-18 1994-11-22 Shimizu Corp Delivery construction method of stressed-ribbon bridge and pc floor slab unit used therefor
KR200233171Y1 (en) * 2000-11-30 2001-09-26 주식회사 탑스브릿지 groud bridge
KR100499265B1 (en) * 2003-03-14 2005-07-01 동방엔지니어링 주식회사 Holding down device
KR100830630B1 (en) 2007-05-21 2008-05-19 대림산업 주식회사 Counter-tensioning apparatus for prestressed beams under changing loads

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100995856B1 (en) 2010-07-07 2010-11-22 동방엔지니어링 주식회사 Holding down device base
KR101144569B1 (en) 2011-05-20 2012-05-11 (주)홍지디씨에스 Prestressed concrete slab using coupler and blockout and construction method thereof
KR101305917B1 (en) * 2011-06-27 2013-09-09 동도산업 주식회사 Bulk head for precast box girder mould
KR101162590B1 (en) * 2011-07-18 2012-07-04 동방엔지니어링 주식회사 Reaction force steel apparatus for manufacturing bridge decks

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