KR100440621B1 - A construction method for reinforcing occurrence part of a bridge sub-moment and a structure thereof - Google Patents
A construction method for reinforcing occurrence part of a bridge sub-moment and a structure thereof Download PDFInfo
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- KR100440621B1 KR100440621B1 KR10-2001-0048317A KR20010048317A KR100440621B1 KR 100440621 B1 KR100440621 B1 KR 100440621B1 KR 20010048317 A KR20010048317 A KR 20010048317A KR 100440621 B1 KR100440621 B1 KR 100440621B1
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- concrete
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- fastening member
- slab
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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
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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
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- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
본 발명은 강봉을 이용한 교량 부모멘트 발생부분의 보강공법 및 그 구조에 관한 것이다.The present invention relates to a reinforcement method and its structure of a bridge parent generating portion using a steel bar.
본 발명은 교량을 연속화하기 위한 슬래브 공법에 있어서, 교량 상판을 치핑하는 단계와; 치핑된 슬래브에 다수의 앵커홈을 구비하는 단계와; 앵커홈이 구비된 슬래브의 표면에 에어콤프레셔를 이용하여 먼지를 제거하는 단계와; 먼지가 제거된 앵커홈에 앵커볼트를 고정하고 에폭시를 주입하는 단계와; 차량이 이동하는 방향으로 철근과 체결부재를 섞어서 배근하는 단계와; 에어콤프레셔를 이용하여 철근과 체결부재가 배근된 부위의 먼지를 제거하는 단계와; 신구콘크리트의 접착을 위하여 접착제를 치핑된 슬래브 표면에 도포하는 단계와; 체결부재에 열을 가할수 있는 소정의 공간부를 두고 콘크리트를 타설하는 단계와; 건조된 콘크리트의 양측으로 노출된 체결부재에 전기를 인가시켜 가열시키는 단계와; 팽창된 체결부재를 조여 콘크리트에 정착시키는 단계와; 전기를 분리 시켜 체결부재를 냉각 수축시키는 단계와; 공간부에 폴리머 콘크리트를 타설되는 단계로 이루어져 부모멘트에 대한 효과적인 대응으로 교량의 처짐량과 균열을 줄일 수 있도록 한 것이다.The present invention provides a slab method for continuous bridges, comprising: chipping a bridge deck; Providing a plurality of anchor grooves in the chipped slab; Removing dust using an air compressor on the surface of the slab provided with the anchor groove; Fixing the anchor bolt to the anchor groove from which dust is removed and injecting epoxy; Mixing and reinforcing the reinforcing bars and the fastening member in a direction in which the vehicle moves; Removing dust from the area where the reinforcing bar and the fastening member are arranged using an air compressor; Applying an adhesive to the chipped slab surface for adhesion of old and new concrete; Placing concrete with a predetermined space portion capable of applying heat to the fastening member; Heating by applying electricity to the fastening members exposed to both sides of the dried concrete; Tightening the expanded fastening member to fix it in concrete; Disconnecting electricity to cool and shrink the fastening member; It is a step of pouring polymer concrete into the space to reduce the deflection and cracking of the bridge by effectively responding to the parent moment.
Description
본 발명은 체결부재를 이용한 교량 부모멘트 발생부분의 보강공법 및 그 구조에 관한 것으로서 특히 교량의 상판 연결부분에 용융점이 낮은 금속이나 합성수지가 피복된 강봉과 철근을 차량의 운행방향으로 배근하고, 강봉에 전기적인 열을가해 팽창시킨후 양단부에서 너트로 조이게 되면 강봉이 냉각된 후에는 교량 부모멘트 발생부분에 압축력이 작용하도록 함으로써 부모멘트에 대한 효과적인 대응으로 교량 상부로의 처짐량과 상판의 균열을 줄일 수 있도록 하며 이를 통해 교대, 교좌가 부식되는 것을 막을 수 있도록 하고, 아울러 차량 운행시 충격이나 소음을 방지하여 주행성을 향상시킬 수 있도록 하면서 교량의 수명을 연장시킬 수 있도록 한 것이다.The present invention relates to a reinforcement method and structure of the bridge parent generating portion using the fastening member, and in particular to the steel rod and reinforcing bars coated with metal or synthetic resin having a low melting point in the upper plate connection portion of the bridge in the driving direction of the vehicle, When it is inflated by applying electrical heat to the nut and tightened with nuts at both ends, after the steel bar is cooled, the compressive force acts on the part of the bridge moment, thereby reducing the amount of deflection to the upper part of the bridge and cracking of the top plate. In this way, it is possible to prevent the corrosion of the shift and the bridge, and also to extend the life of the bridge while improving the driving performance by preventing the impact or noise when driving the vehicle.
일반적으로 하천 ·호소(湖沼) ·해협 ·만(灣) ·운하 또는 다른 교통로나 구축물(構築物) 위를 건너갈 수 있도록 만든 고가구조물을 교량이라고 하고, 이러한 교량은 교각과 교각위에 얹혀진 교좌부 및 교좌부에 받혀진 교량빔 그리고 교량빔의 윗면에 구비된 상판으로 구성되어 있다.In general, elevated structures made to cross rivers, lakes, straits, bays, canals, or other traffic or structures are called bridges. These bridges are bridges and bridges placed on bridges and piers. It consists of a bridge beam received on the bridge and a top plate provided on the top of the bridge beam.
그런데 최근에 와서는 교량을 보수 함에 있어서 교량빔과 교량빔 사이의 상판을 슬래브 공법을 이용하여 연속화 하므로서 차량의 주행중 발생되는 진동과 충격을 최소화 하고 있다.However, in recent years, in repairing a bridge, the slab method is used to continuously form the upper plate between the bridge beam and the bridge beam, thereby minimizing vibration and shock generated while driving the vehicle.
이런 슬래브 공법은 교량빔과 교량빔이 위치하는 상판에 소정 넓이와 깊이의 홈을 형성한 후 그 홈에 철근을 격자 형태로 배근한 다음 콘크리트를 타설하여 양생시키는 것으로 완료된다.This slab method is completed by forming grooves of a predetermined width and depth in the bridge beam and the upper plate on which the beam beams are located, and then placing reinforcing steel bars in the grooves and then curing the concrete.
그러나 이러한 슬래브 공법을 통해 교량을 연속화 했을 경우에는 교량빔의 자중과 교량을 통과하는 차량의 하중에 따라 발생되는 부모멘트가 교량빔이 연결되는 부위에 집중됨으로써 슬래브에 균열이 발생되는 문제점이 있었다.However, when the bridge is continued through the slab method, there is a problem that cracks are generated in the slab due to the concentration of the parent moment generated by the weight of the bridge beam and the load of the vehicle passing through the bridge, at the site where the bridge beam is connected.
또한 교량 상판이 연결된 부분이 부모멘트에 효과적으로 대응하지 못하게 됨으로써 교량 상부로의 처짐량이 증가됨으로 인해 구조적 안정성이 낮아지는 문제점 있었다.In addition, there is a problem that the structural stability is lowered due to the increase in the amount of deflection to the upper portion of the bridge by the bridge top portion is not effective to cope with the parent.
그리고 균열이 점진적으로 진행됨으로써 상판을 통과하는 차량의 가해지는 충격력에 의하여 소음이 커지고, 교량의 피로강도가 낮아지는 또 다른 문제점이 있었다.As the crack progresses gradually, the noise increases due to the impact force of the vehicle passing through the upper plate, and there is another problem that the fatigue strength of the bridge is lowered.
또한 균열부위로 빗물이 흘러 들어갈 경우에는 교각이나 교좌부의 부식을 촉진시켜 교량의 수명이 단축되는 문제점이 있었다.In addition, when rainwater flows into the cracked portion, there is a problem in that the life of the bridge is shortened by promoting corrosion of the bridge or the bridge.
본 발명은 이와 같은 문제점을 해소하기 위해 안출한 것으로서 상판이 연결되는 부분에 용융점이 낮은 금속이나 합성수지 등의 코팅재가 피복된 강봉과 철근을 차량의 운행방향에 따라 섞어서 배근하고, 강봉에 전기적인 열을 가해 팽창시킨후 너트로 조여 강봉이 냉각된 후에는 교량 부모멘트 부분에 압축력이 작용하도록 함으로써 부모멘트에 대한 효과적인 대응으로 교량 상부로의 처짐량과 균열을 줄일 수 있도록 하여 교량의 수명을 연장시킬 수 있도록 하고, 교량을 통과하는 차량의 주행성을 향상시킬 수 있도록 하는 강봉을 이용한 교량 부모멘트 발생부분의 보강공법 및 그 구조를 제공하는데 그 목적이 있다.The present invention has been made in order to solve such a problem, the steel bar and rebar coated with a coating material such as metal or synthetic resin having a low melting point in the portion to which the upper plate is connected, reinforce by mixing according to the driving direction of the vehicle, electrical heat to the steel bar After inflation and tightening with a nut, the steel rod can be compressed and the compressive force acts on the portion of the bridge's parent section, thereby effectively reducing the amount of deflection and cracking in the upper part of the bridge. The purpose of the present invention is to provide a reinforcement method and a structure of a bridge parent generating portion using steel rods to improve the running performance of a vehicle passing through the bridge.
이와 같은 목적을 달성하기 위한 본 발명은 교량을 연속화하기 위해 교량빔과 교량빔이 위치하는 상판에 소정 넓이와 깊이의 홈을 형성한 후 그 홈에 철근을 격자 형태로 배근한 다음 콘크리트를 타설하여 양생시키는 슬래브 공법에 있어서, 교량 상판이 연결되는 부분의 슬래브 윗면을 소정 깊이를 갖도록 치핑하는 단계와;치핑된 슬래브에 다수의 앵커홈을 설치하는 단계와; 앵커홈이 형성된 슬래브의 표면에 에어콤프레셔를 이용하여 먼지를 제거하는 단계와; 먼지가 제거된 앵커홈에 앵커볼트를 설치하고 에폭시를 주입하는 단계와; 차량 이동방향으로 철근을 배근하고, 차량 이동방향으로 체결부재를 배근하는 단계와; 에어콤프레셔를 이용하여 철근과 체결부재가 배근된 부위의 먼지를 제거하는 단계와; 신구콘크리트의 접착을 위하여 접착제를 구 콘크리트 표면에 도포하는 단계와; 강봉에 열을 가할수 있는 소정의 공간부를 두고 콘크리트를 타설하는 단계와; 건조된 콘크리트의 양측으로 노출된 체결부재에 전기를 인가시켜 가열시키는 단계와; 팽창된 체결부재를 너트로조여 콘크리트에 정착시키는 단계와; 전기를 분리 시켜 체결부재를 냉각 수축시키는 단계와; 공간부에 폴리머 콘크리트나 에폭시계 콘크리트 중 어느 하나가 타설되는 단계로 이루어진 것을 특징으로 하는 강봉을 이용한 교량 부모멘트 발생부분의 보강방법을 제공함에 달성된다.In order to achieve the above object, the present invention forms a groove having a predetermined width and depth in the upper plate on which the bridge beam and the bridge beam are located to continually bridge the bridge, and then reinforces the reinforcing bars in the groove and then casts concrete. A curing slab method comprising the steps of: chipping a top surface of a slab to which a bridge top plate is connected to have a predetermined depth; providing a plurality of anchor grooves in the chipped slab; Removing dust on the surface of the slab where the anchor groove is formed by using an air compressor; Installing an anchor bolt in the anchor groove from which dust is removed and injecting epoxy; Reinforcing the reinforcing bars in the vehicle moving direction and placing the fastening members in the vehicle moving direction; Removing dust from the area where the reinforcing bar and the fastening member are arranged using an air compressor; Applying an adhesive to the old concrete surface for adhesion of old and new concrete; Placing concrete with a predetermined space portion capable of applying heat to the steel rod; Heating by applying electricity to the fastening members exposed to both sides of the dried concrete; Tightening the expanded fastening member with a nut to fix it in concrete; Disconnecting electricity to cool and shrink the fastening member; It is achieved to provide a method for reinforcing a bridge parent generating portion using a steel bar, characterized in that the space portion is made of one of polymer concrete or epoxy-based concrete.
도 1은 본 발명에 따른 체결부재가 적용된 교량의 연결부를 도시한 예시도.1 is an exemplary view showing a connecting portion of the bridge to which the fastening member according to the present invention is applied.
도 2는 본 발명에 따른 체결부재가 적용된 보강부의 확대 사시도.Figure 2 is an enlarged perspective view of the reinforcing portion to which the fastening member according to the present invention is applied.
도 3은 본 발명에 따른 체결부재의 분해 사시도.3 is an exploded perspective view of a fastening member according to the present invention.
도 4는 본 발명에 따른 다른 실시예를 도시한 교량 연결부의 예시도.4 is an exemplary view of a bridge connecting portion showing another embodiment according to the present invention.
<도면의 주요 부분에 대한 부호의 간단한 설명><Brief description of symbols for the main parts of the drawings>
5:슬래브 6:앵커홈5: slab 6: anchor groove
7:앵커볼트 8:철근7: Anchor bolt 8: Rebar
9:철근 10:체결부재9: rebar 10: fastening member
12:콘크리트 19:공간부12: concrete 19: space part
이하 본 발명의 실시예를 첨부 도면을 참조하여 설명하면 다음과 같다.Hereinafter, an embodiment of the present invention will be described with reference to the accompanying drawings.
본 발명에 따른 체결부재를 이용한 교량 부모멘트 발생부분의 보강구조는 도 1 내지 도 3에 도시된 바와 같이 교각(1) 상단에 교좌부(2)를 개재하여 얹혀진 교량빔(30)의 상판(4)에 소정 넓이와 깊이로 치핑된 슬래브(5)에 구비된 다수의 앵커홈(6)과, 상기 앵커홈(6)에 삽입된 앵커볼트(7)와, 앵커홈(6)에 주입되어 고착력을 강화시키는 에폭시수지와, 차량 이동방향으로 배근된 철근(8)과, 차량 이동방향으로 배근된 체결부재(10)와, 상기 철근(8)과 체결부재(10)와 교차되게 배근된 횡철근(9)과, 치핑된 슬래브(20)의 표면에 도포된 접착제(11)와, 콘크리트를 타설하여 건조된 콘크리트(12)와, 상기 콘크리트(12)의 가장자리에 폴리머 콘크리트(13)가 타설되어 건조된 것으로 구성된다.The reinforcing structure of the bridge parent moment generating portion using the fastening member according to the present invention is the top plate of the bridge beam 30 mounted on the bridge 1 via the bridge portion 2 as shown in Figures 1 to 3 ( 4) a plurality of anchor grooves (6) provided in the slab (5) chipped to a predetermined width and depth, the anchor bolt (7) inserted into the anchor groove (6) and injected into the anchor groove (6) Epoxy resin for reinforcing fixing force, reinforcing bars 8 arranged in the vehicle moving direction, fastening members 10 arranged in the vehicle moving direction, and reinforced to cross the reinforcing bars 8 and the fastening members 10. The transverse reinforcing bar 9, the adhesive 11 applied to the surface of the chipped slab 20, the concrete 12 in which the concrete is poured and dried, and the polymer concrete 13 at the edge of the concrete 12 It is composed of poured and dried.
여기에서 상기 체결부재(10)는 도 3에 도시된 바와 같이 소정의 길이를 가지며 용융점이 낮은 금속인 동이나 황동 또는 용융점이 낮은 합성수지가 소정 두께로 피복된 강봉(14)과, 강봉(14)의 양단에 구비된 소정 길이를 갖는 나사부(15)(16)와, 상기 나사부(15)(16)에 결합되는 너트(17)(18)로 구비된다.Here, the fastening member 10 is a steel bar 14 and steel bar 14 having a predetermined length and coated with a predetermined thickness of copper or brass or a low melting point synthetic resin having a predetermined length as shown in FIG. It is provided with a screw portion (15) 16 having a predetermined length provided at both ends of, and nuts (17) (18) coupled to the screw portion (15) (16).
본 발명에서는 상기 콘크리트(12)의 가장자리에 폴리머 콘크리트(13)를 타설하였으나 에폭시계 콘크리트를 사용할 수도 있다.In the present invention, the polymer concrete 13 is poured on the edge of the concrete 12, but epoxy-based concrete may be used.
또한 콘크리트의 가장자리로서 폴리머 콘크리트나 에폭시계 콘크리트가 타설되는 공간부, 즉 체결부재(10)에 전기를 인가시킬 수 있는 작업 공간부(19)의 크기는 약 20∼30Cm로 하는 것이 바람직하다.In addition, it is preferable that the size of the working space 19 for applying electricity to the space portion, ie, the fastening member 10, on which polymer concrete or epoxy-based concrete is poured as an edge of the concrete is preferably about 20 to 30 cm.
이와 같은 구조를 갖는 강봉을 이용한 교량 부모멘트 발생부분의 보강구조는 먼저 교량 상판이 연결되는 부분의 슬래브 윗면을 치핑(Chipping)하여 소정 깊이를 갖도록 형성하고, 치핑된 슬래브 윗면에 다수의 앵커홈(6)을 구비한다.The reinforcing structure of the bridge parent generating portion using the steel bar having such a structure is formed by chipping the upper surface of the slab where the bridge top plate is connected to have a predetermined depth, and a plurality of anchor grooves on the upper surface of the chipped slab ( 6).
다음 슬래브 윗면을 치핑하고 앵커홈(6)을 형성하는 과정에서 발생된 이 물질인 먼지를 에어콤프레셔를 이용하여 말끔히 제거하고, 앵커홈(6)에 앵커볼트(7)를 고정한 다음 고착력을 보강하기 위해 에폭시(8)를 주입한다.Next, the upper surface of the slab is chipped and dust, which is generated in the process of forming the anchor groove 6, is neatly removed using an air compressor, the anchor bolt 7 is fixed to the anchor groove 6, and then the fixing force is reinforced. In order to inject the epoxy (8).
다음 차량 이동방향으로 앵커볼트에 걸어서 체결부재(10) 및 철근(8)을 섞어서 배근한다. 본 발명의 실시예에서는 체결부재(10)와 철근(8)을 교차되게 배근하였다.Next, the fastening member 10 and the reinforcing bars 8 are mixed by walking on the anchor bolt in the vehicle moving direction. In the embodiment of the present invention, the fastening member 10 and the reinforcing bar 8 were arranged to intersect.
다음 상기 체결부재(10)와 철근(8)에 교차되게 횡철근(9)을 배근 한다.Next, the reinforcing bar 9 is arranged to intersect the fastening member 10 and the reinforcing bar 8.
다시 에어콤프레셔를 이용하여 먼지를 제거하고 신구콘크리트의 접착을 위하여 구콘크리트 표면에 접착제 도포한다.Again remove dust using an air compressor and apply adhesive on the surface of old concrete for adhesion of old and new concrete.
그리고 체결부재(10)의 양단에 전기를 인가시켜 열을 발생시킬 수 있는 소정의 작업 공간부(19) 두고 콘크리트를 타설하여 건조시킨다.Then, the concrete is poured and dried with a predetermined working space 19 capable of generating heat by applying electricity to both ends of the fastening member 10.
다음 건조된 콘크리트(12)의 양측으로 노출된 체결부재(10)에 전기를 인가하게 되면 강봉(14)이 가열되고, 이와 동시에 강봉(14)의 둘레에 피복된 용융점이 낮은 코팅재가 용융되어 콘크리트와 분리되고 강봉은 팽창하게 된다.Next, when electricity is applied to the fastening member 10 exposed to both sides of the dried concrete 12, the steel bar 14 is heated, and at the same time, a coating material having a low melting point coated around the steel bar 14 is melted and And the rod expands.
이 상태에서 강봉(14)의 양측에 구비된 너트(17)(18)를 조여 체결부재(10)를 콘크리트에 정착시키고, 강봉(14)에 공급되는 전기를 분리 냉각시킴으로써 늘어나 있던 강봉(14)이 수축을 하면서 콘트리트를 압축시키는 압축력(프리스트레스)을 가하게 되는데, 이렇게 되면 교량 부모멘트 발생부분의 부모멘트를 현저하게 감소 시키게 된다.In this state, the nuts 17 and 18 provided on both sides of the steel rod 14 are tightened to fix the fastening member 10 to concrete, and the steel rod 14 that has been stretched by separating and cooling the electricity supplied to the steel rod 14. During this contraction, a compressive force (pre-stress) is applied to compress the concrete, which significantly reduces the parenting of the bridge generating part.
그리고 공간부(19)에 폴리머 콘크리트나 에폭시계 콘크리트 중 어느 하나의 콘크리트를 타설시켜 건조시키는 것으로 교량 부모멘트 발생부분의 보강을 하게 된다.In addition, by pouring one of polymer concrete or epoxy-based concrete into the space 19 and drying it, the bridge parent generating portion is reinforced.
한편 도 4에 도시된 바와 같이 연속화된 신설 교량 빔의 보강에 적용할 경우에도 부모멘트의 발생부분을 효과적으로 보강할 수 있다.On the other hand, even when applied to the reinforcement of the new continuous bridge beam as shown in Figure 4 it can effectively reinforce the generating portion of the parent.
이상에서 살펴 본 바와 같이 본 발명은 교량의 상판이 연결되는 부분에 용융점이 낮은 금속이나 합성수지 등의 코팅재가 피복된 강봉과 철근을 차량의 운행방향으로 섞어 배근하고, 콘크리트를 타설하여 건조한 다음 강봉에 전기적인 열을 가해 팽창시킨후 너트로 조여 강봉이 냉각된 후 콘크리트에 압축력이 작용하도록 함으로써 부모멘트에 대한 대응으로 교량 상부로의 처짐량과 균열을 줄일 수 있도록 하고, 이를 통해 교대, 교좌가 부식되는 것을 막아 교량의 수명을 연장시킬 수 있도록 한 것이다.As described above, the present invention mixes steel bars and reinforcing bars coated with a coating material such as metal or synthetic resin having a low melting point at the part to which the upper plate of the bridge is connected, and reinforces them in the driving direction of the vehicle, and then places concrete to dry the steel bars. Inflate by applying electric heat and tighten with a nut so that the compressive force acts on the concrete after cooling the steel bar to reduce the amount of deflection and cracks in the upper part of the bridge in response to the parent moment. This prevents the bridge from extending its life.
또한 교량을 통과하는 차량의 주행성을 향상시킬 수 있도록 한 것이다.In addition, it is to improve the runability of the vehicle passing through the bridge.
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| KR102585929B1 (en) * | 2023-06-22 | 2023-10-06 | (주)리빌텍이엔씨 | Method and Apparatus for Reinforcing the Parent Moment of the Bridge Structure |
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| KR101134537B1 (en) * | 2011-06-10 | 2012-04-13 | (주)연우지앤비 | Crack prevention structure of bridge slab |
| KR101934874B1 (en) * | 2018-03-27 | 2019-03-18 | 주식회사 씨알디 | Deck plate comprised of ultra high strength fiber reinforced concrete and construction method using thereof |
| CN108755333B (en) * | 2018-05-24 | 2020-11-13 | 郑州工业应用技术学院 | Road and bridge crack repairing device and method |
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