KR0163475B1 - Method for preventing bridge from rusting - Google Patents
Method for preventing bridge from rusting Download PDFInfo
- Publication number
- KR0163475B1 KR0163475B1 KR1019950024274A KR19950024274A KR0163475B1 KR 0163475 B1 KR0163475 B1 KR 0163475B1 KR 1019950024274 A KR1019950024274 A KR 1019950024274A KR 19950024274 A KR19950024274 A KR 19950024274A KR 0163475 B1 KR0163475 B1 KR 0163475B1
- Authority
- KR
- South Korea
- Prior art keywords
- well
- bridge
- concrete
- underwater
- reinforcing bars
- Prior art date
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Classifications
-
- 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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
본 발명은 교량의 하부수중수심부의 보수보강을 위해 이루어지는 교량하부 수중구조물 방식공법에 관한 것으로, 우물통의 콘크리트를 깨고 우물통 측면철근과 상부철근을 조립하며 FRP커버를 우물통 주위에 조립하고 레미콘 타설을 행하여 수질오염으로 인한 부식우려가 적고 우물통의 균열이 방지되어 반영구적 시공이 된다.The present invention relates to a method for underwater bridge construction method for the reinforcing reinforcement of the lower water depth of the bridge, breaking the concrete in the well, assembling the reinforcing bars and the upper reinforcing bars, assembling the FRP cover around the well and the ready-mixed concrete It is semi-permanent construction because it is less likely to be corroded by water pollution and prevents cracking of the wells.
Description
제1도는 종래의 수중철판 무근콘크리트 채움공법을 도시하는 도면.1 is a view showing a conventional underwater steel plate plain concrete filling method.
제2도는 본 발명의 수중구조물 방식공법을 도시하는 도면.2 is a view showing an underwater structure corrosion protection method of the present invention.
제3도는 본 발명에 따라 시공된 우물통 측면철근보강을 도시하는 도면.3 is a view showing the well side reinforcement of the wells constructed in accordance with the present invention.
제4도는 본 발명에 따라 시공된 우물통 상부철근보강을 도시하는 도면.4 is a diagram showing a well top reinforcement reinforcement constructed in accordance with the present invention.
제5도는 본 발명에서 사용되는 FRP커버를 도시하는 도면.5 is a view showing an FRP cover used in the present invention.
* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings
10 : 수중구조물 11 : 우물통10: underwater structure 11: well
12 : 가물막이 13 : 측면철근12: temporary curtain 13: side rebar
14 : 상부철근14: upper rebar
본 발명은 교량의 하부 수중수심부의 보수보강을 위해 이루어지는 교량하부 수중구조물 방식공법에 관한 것이다.The present invention relates to a bridge underwater structural method for the reinforcement of the lower water depth of the bridge.
교량수중 수심부의 은폐된 부분은 세굴현상 및 동파현상, 수질오염에 대한 유지관리가 요구되고 안전점검을 통한 보수보강이 이루어져야 한다.The concealed part of the depth of the bridge should be maintained for scour, freezing, and water pollution, and repaired by safety check.
종래에는 보수보강이 가물막이를 설치하고 부식된 콘크리트를 깨고 철판거푸집을 설치한후 콘크리트를 타설하는 수중철판 무근콘크리트 채움공법으로 시행되었으며, 제1도에 도시된 바와같이 철판거푸집(1)의 녹발생과 수질오염으로 하자발생시 재시공을 하여야 하고 철근 인장이 없으므로 우물통 균열이 발생하였다.Conventionally, repair reinforcement was carried out by a method of filling a steel plate formless concrete to install concrete screens, breaking corroded concrete and installing iron sheet formwork, and then pouring concrete, as shown in FIG. If the defect occurred due to the occurrence and water pollution, it was necessary to reconstruct and there was no rebar tension, so a crack in the well was generated.
본 발명의 목적은 상기와 같은 문제점을 해결하기 위하여 FRP커버를 제작하여 철근조립후 거푸집으로 설치하고 콘크리트를 타설하여 부식우려가 적어지는 교량하부 수중구조물 방식공법을 제공하고자 하는 것이다.An object of the present invention is to provide a method for the construction of a method of underwater bridge under the bridge to reduce the risk of corrosion by manufacturing the FRP cover to install as a formwork after reinforcing the reinforcement to pour the concrete.
본 발명을 첨부된 도면을 참조하여 하기에 설명한다.The present invention is described below with reference to the accompanying drawings.
제2도에는 본 발명의 수중구조물 방식공법이 도시되는데, 교량하부의 수중구조물(10)을 보수하기 위해서는 먼저 건식시공으로 우물통(11)의 끝단에서 12m 떨어진 하상에 150 내지 160m 정도의 메인 가물막이(12)를 축조하고 가로 가물막이를 축조한다. 가물막이(12) 밖에 걸리는 수압으로 인해 들어오는 유수차단을 위해 차수용매트를 부설하고 마대를 쌓는다.FIG. 2 shows an underwater structure anticorrosion method of the present invention. In order to repair the underwater structure 10 of the lower portion of the bridge, first, the main construction of 150 to 160 meters on the bottom 12 m away from the end of the well 11 is dry. A membrane 12 is constructed and a horizontal temporary barrier is constructed. Due to the water pressure outside the temporary screen (12) to lay the mats for laying the mat for the water flow to block the incoming water.
다음에는 양수기를 설치하고 물을 푸고 하상고르기와 배수로 작업을 한다.Next, install a water pump, drain the water, and work on the bottoms and drain.
본 발명의 공법에 따라 우물통(11)의 콘크리트를 깨고 샌딩하며 제3도에 도시된 바와같이 우물통 측면철근(13)을 조립하고 제4도에 도시된 바와같이 우물통 상부철근(14)을 조립한다.Breaking and sanding the concrete in the well 11 according to the method of the present invention, assembling the well side reinforcing bar 13 as shown in FIG. Assemble
다음에는 제5도에 도시된 FRP커버(15)를 우물통(11) 주위에 조립한다.Next, the FRP cover 15 shown in FIG. 5 is assembled around the well 11.
FRP커버(15)는 불포화 폴리에스텔 수지와 유리 섬유의 복합구조재료로 제조되어 내산성, 내열성 및 내부식성이 우수하고 거의 영구적이며 보다 강화된 플라스틱이다.The FRP cover 15 is made of a composite material of unsaturated polyester resin and glass fiber, which is excellent in acid resistance, heat resistance and corrosion resistance, and is almost permanent and reinforced plastic.
따라서 FRP커버는 비중이 철의 1/5, 허용 인장강도는 철의 약 1/2, 비항장력은 철의 약 2.5배로 가볍고 기계적 강도가 우수하고, 내수성 및 내약품성이 뛰어나고 화학적으로 안정하여 내부식성이 우수하며, 설계가공이 자유롭고 작업이 간편하고, 열의 전도율이 철의 약 1/180 정도밖에 되지 않아서 보온 보냉의 단열성과 전기 절연성이 우수하며, 반투명으로 액면계가 필요하지 않고, 금속이온의 용출이 없으므로 이온에 의한 이상이 발생하지 않으며 외관이 미려하여 도장이 필요없고, 접착성이 강해서 세멘트, 목재등과의 접착도 양호하다.Therefore, the FRP cover has a specific gravity of 1/5 of iron, the allowable tensile strength of about 1/2 of iron, and the specific tensile strength of about 2.5 times of iron. It is light and has excellent mechanical strength. It is excellent in design and processing, it is easy to work, and its heat conductivity is only about 1/180 of iron, so it is excellent in thermal insulation and electrical insulation of thermal insulation. There is no abnormality caused by ions, and the appearance is beautiful, so there is no need for painting.
FRP커버(15)가 조립된 후에는 레미콘 타설을 행하고 양생하면 본 발명의 교량하부 수중구조물 방식공법이 완료된다. 그후에는 매트, 마대 및 가물막이(12)를 해체하면 된다.After the FRP cover 15 is assembled, when the concrete is poured and cured, the bridge underwater structure anticorrosion method of the present invention is completed. After that, the mat, the sack, and the temporary shield 12 may be dismantled.
본 발명의 교량하부 수중구조물 방식공법에 의하면 FRP커버의 사용으로 향후 부식우려가 적고 단열성, 전기절연성 및 이온용출이 없는 반영구적 시공이 이루어지며 우물통 측면 및 상부철근보강으로 종래의 무근 콘크리트 채움공법보다 우물통의 균열이 방지되는 효과가 제공된다.According to the method of bridge bottom underwater structure corrosion method of the present invention, the use of FRP cover is less corrosive in the future, and semi-permanent construction without insulation, electrical insulation and ion dissolution is achieved, and the reinforcement of the well side and upper reinforcement than conventional plain concrete filling method The effect of preventing cracking of the well is provided.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019950024274A KR0163475B1 (en) | 1995-08-07 | 1995-08-07 | Method for preventing bridge from rusting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019950024274A KR0163475B1 (en) | 1995-08-07 | 1995-08-07 | Method for preventing bridge from rusting |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR970011193A KR970011193A (en) | 1997-03-27 |
| KR0163475B1 true KR0163475B1 (en) | 1998-12-15 |
Family
ID=19422991
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1019950024274A KR0163475B1 (en) | 1995-08-07 | 1995-08-07 | Method for preventing bridge from rusting |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR0163475B1 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100303286B1 (en) * | 1998-08-06 | 2001-11-22 | 정희용 | Construction bent caisson f.r.p |
| KR200205765Y1 (en) * | 2000-07-05 | 2000-12-01 | 주식회사정도엔지니어링 | Reinforcing structure of foundation for pier |
| KR100413841B1 (en) * | 2001-09-20 | 2004-01-03 | 이상원 | Dry construction method of substructure under bridge |
-
1995
- 1995-08-07 KR KR1019950024274A patent/KR0163475B1/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| KR970011193A (en) | 1997-03-27 |
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