KR0164667B1 - Method for reinforcing cracked concrete structure - Google Patents

Method for reinforcing cracked concrete structure Download PDF

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Publication number
KR0164667B1
KR0164667B1 KR1019950011629A KR19950011629A KR0164667B1 KR 0164667 B1 KR0164667 B1 KR 0164667B1 KR 1019950011629 A KR1019950011629 A KR 1019950011629A KR 19950011629 A KR19950011629 A KR 19950011629A KR 0164667 B1 KR0164667 B1 KR 0164667B1
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South Korea
Prior art keywords
injection
elastic
concrete
plate
strength
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KR1019950011629A
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Korean (ko)
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KR960041577A (en
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이옥신
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한혜선
영전토건주식회사
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Publication of KR960041577A publication Critical patent/KR960041577A/en
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    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04GSCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G23/00Working measures on existing buildings
    • E04G23/02Repairing, e.g. filling cracks; Restoring; Altering; Enlarging
    • E04G23/0218Increasing or restoring the load-bearing capacity of building construction elements
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04GSCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G23/00Working measures on existing buildings
    • E04G23/02Repairing, e.g. filling cracks; Restoring; Altering; Enlarging
    • E04G23/0218Increasing or restoring the load-bearing capacity of building construction elements
    • E04G2023/0251Increasing or restoring the load-bearing capacity of building construction elements by using fiber reinforced plastic elements

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Working Measures On Existing Buildindgs (AREA)
  • Bridges Or Land Bridges (AREA)

Abstract

본 발명은 콘크리트의 부식 부위를 계련처리, 균열부위를 브이(V) 컷트하고 구멍을 뚫어 앵커 보울트를 박아서 탄성섬유를 덮고 탄성섬유 상에 고강도 탄성판을 설치하여 앵커 보울트로 고정시키고 고강도 탄성판에 주입구를 설치하여 에폭시 주입제 접착제 등을 주입하여 콘크리트 면, 균열부위와 탄성섬유 그리고 탄성판을 주입제로 접착 일체화하여 보강하는 콘크리트 구조물 균열의 압착주입 보강 공법이다.The present invention is to cure the corrosion part of the concrete, V (cut) cut the cracks and punched the anchor bolt to cover the elastic fiber and install a high-strength elastic plate on the elastic fiber to fix the anchor bolt and high-strength elastic plate It is a compression injection reinforcement method for cracks in concrete structures in which the concrete surface, cracks, elastic fibers, and elastic plates are bonded together to be reinforced by injecting epoxy injection adhesive into the injection hole.

Description

콘크리트 구조물 균열 압착주입 보강 공법Concrete structure crack compression injection reinforcement method

제1도는 본 발명의 구조를 설명하는 단면도.1 is a cross-sectional view illustrating the structure of the present invention.

제2도는 본 발명의 고강도 탄성판의 단면도.2 is a cross-sectional view of the high-strength elastic plate of the present invention.

* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings

2 : 에폭시 수지 5 : 구멍2: epoxy resin 5: holes

6 : 앵커 보울트 7 : 탄성섬유6: anchor bolt 7: elastic fiber

8 : 탄성판 10 : 콘크리트 구조물8: elastic plate 10: concrete structure

12 : 균열 15 : 브이 컷트12: crack 15: V cut

19 : 퍼티19: Putty

본 발명은 콘크리트 구조물의 보수에 관한 것으로, 특히 콘크리트 구조물 균열의 압착주입 보강 공법에 관한다.The present invention relates to the repair of concrete structures, in particular to the compression injection reinforcement method of concrete structure cracks.

본 발명은 콘크리트 균열, 부식, 박리현상으로 인하여 구조물의 강도가 낮아 문제가 되는 구조물을 보강하는 압착, 주입 그라우팅 보강재료 및 공법에 관한 것이다.The present invention relates to a compression, injection grouting reinforcing material and a method for reinforcing a structure that is problematic due to low strength of the structure due to concrete cracking, corrosion, peeling phenomenon.

일반적으로 콘크리트 구조물 교량 상판 접착공사시 및 콘크리트 철판 접착 공사시에 철판을 사용하여 콘크리트 구조물 면과 철판 사이를 에폭시 접착제를 사용하여 콘크리트 구조물 상부에 접착하는 방법을 사용하나 콘크리트 구조 및 내부 변형을 관찰할 수가 없으며, 구조물의 수축 팽창 변형계수와 맞지 않아 박리현상이 일어나게 되며, 또한 보수 시공후 시가지의 콘크리트 구조물은 철판 하중에 대한 낙하 위험이 따르고 강판의 문제가 되며 철판과의 접착은 그 내구성이 낮다는 결함이 있었다.Generally, it is used to bond the upper surface of concrete structure to the upper part of concrete structure by using epoxy plate between the surface of steel structure and the steel plate using the steel plate during the bonding work of concrete structure bridge plate and the concrete steel plate bonding work. It does not match the shrinkage expansion coefficient of the structure and peeling phenomenon occurs, and after repairing, the concrete structure of the urban area has a risk of falling against the steel plate load, becomes a problem of the steel plate, and the adhesion to the steel plate is low in durability. There was a fault.

그리고 이와 같은 철판을 사용하는 시공은 그 재료비가 고가이며 미관상 나쁘고, 유지관리가 어려우며 시공 설치시 철판의 중량 때문에 인력 장비가 필요하고, 구조물에 무리가 많다.And the construction using such a steel plate is expensive and aesthetically bad material cost, difficult to maintain, installation of construction requires manpower equipment due to the weight of the iron plate, there is a lot of structure.

본 발명은 이와 같은 종래의 문제점 및 결함을 감안하여 안출한 것으로, 본 발명은 콘크리트의 부식 부위를 계련처리, 균열부위를 브이(V) 컷트하고 구멍을 뚫어 앵커 보울트를 박아서 탄성섬유를 덮고 탄성섬유 상에 고강도 탄성판을 설치하여 앵커 보울트로 고정시키고 고강도 탄성판에 주입구를 설치하여 에폭시 주입제 접착제 등을 주입하여 콘크리트 면, 균열부위와 탄성섬유 그리고 탄성판을 주입제로 접착 일체화하여 보강하는 콘크리트 구조물 균열의 압착주입 보강구조 및 공법이다.The present invention has been devised in view of the above-mentioned conventional problems and defects, and the present invention is to squeeze the corrosion part of the concrete, and to cut the cracked part (V) and to drill the anchor bolt by drilling a hole to cover the elastic fiber and elasticity High strength elastic plate is installed on the fiber to fix with anchor bolt, and the injection hole is installed on the high strength elastic plate to inject epoxy injection adhesive, etc. Compression injection reinforcement structure and method for structural cracking.

본 발명을 양호한 실시예의 도면을 참조하여 설명한다.The present invention will be explained with reference to the drawings of the preferred embodiments.

보수할 기존 콘크리트면(10)을 물청소를 한 다음 균열부위(12)와 부식 부위를 표시한다. 콘크리트 구조물(10)의 균열부위(12)를 V-컷트(15)하고 부식된 부위는 계련한다.Wet the existing concrete surface 10 to be repaired and then mark the crack 12 and the corrosion site. The cracked portion 12 of the concrete structure 10 is V-cut 15 and the corroded portion is enclosed.

콘크리트 면(10)에 구멍(5) 치핑을 한 후 앵커 보울트(6)를 박는다.After chipping the holes (5) in the concrete face (10) and anchor the anchor bolt (6).

앵커 보울트(6)는 지름 8㎜, 길이 70㎜ 규격의 것을 1㎡당 5개를 박고, 탄성섬유(7), 유리섬유, 고강도 섬유를 보수할 면에 일정간격, 예를 들어 5㎜ 정도의 간격을 유지하도록 하여 덮어주면서 고강도 탄성판(8); 예를 들면 탄성섬유(7)를 에폭시수지(2)를 사용하여 침지적층한 에폭시 FRP 판(8)(제2도 참조)을 앵커구멍(6')에 맞추어서 조립하고 앵커구멍(6') 부위를 에폭시 퍼티(19)를 충전한다.Anchor bolts 6 have a diameter of 8 mm and a length of 70 mm in length of 5 pieces per square meter, and the elastic bolts 7, glass fibers, and high-strength fibers have a predetermined interval, for example, about 5 mm. A high-strength elastic plate 8 while covering to maintain the gap; For example, the elastic fiber 7 is assembled using an epoxy resin 2 so as to assemble an epoxy FRP plate 8 (see FIG. 2), which is immersed in alignment with the anchor hole 6 ', and the anchor hole 6' area. To the epoxy putty (19).

고강도 탄성판(8)에 에폭시 주입구(9)를 표시한다. 주입구(9)는 1㎡당 4개 이상으로 설치하고 주입기 노즐(도면에 생략) 부위는 충전제로 충전하고 에폭시 주입제(2) 주입시 1차는 저압으로 주입하여 탄성섬유(7)의 외부측을 적시어서 밀폐시키면서 고강도 탄성판(8)과 접합시키며 2차 주입하여 콘크리트 균열부위(12)에 주입되면서 탄성섬유(7)와 콘크리트(10) 사이에 충전되어 접합되게 하고 2차 주입시는 중 고압으로 주입시킨다.The epoxy injection hole 9 is marked on the high strength elastic plate 8. Four or more injection holes (9) are installed per square meter, the injector nozzle (not shown in the drawing) is filled with a filler, and when the epoxy injection (2) is injected, the primary is injected at a low pressure so that the outer side of the elastic fiber (7) Wet and sealed and bonded with high strength elastic plate (8), the second injection is injected into the concrete cracked portion 12, and filled and bonded between the elastic fiber (7) and the concrete (10), the second high pressure Inject

특히 보강 주입제(2) 주입전에는 앵커 보울트 주입구 노즐구 주위에 정확히 충전되는지, 충전되었는지를 점검하여야 한다.In particular, before the reinforcement injection (2) is injected, it should be checked whether or not it is properly filled around the anchor bolt inlet nozzle opening.

충전이 완료된 후 에폭시 수지가 자연 경화된다.The epoxy resin cures naturally after the filling is completed.

이상과 같이 시공 경화된 압착주입 보강구조는 매우 견고하고 에폭시 수지의 접착력 및 경도와 탄성섬유, 탄성판의 강도에 의하여 반영구적인 보수, 강화가 가능하다.The construction hardened compression injection reinforcement structure as described above is very durable and semi-permanent repair and reinforcement by the adhesive strength and hardness of the epoxy resin and the strength of the elastic fiber, elastic plate is possible.

Claims (2)

콘크리트 구조물(10)의 균열부위(12)를 V-컷트(15)하고 콘크리트 면(10)에 구멍(5) 치핑을 한 후 앵커 보울트(6)를 박고 탄성섬유(7)를 덮어주면서 고강도 탄성판(8)을 조립하고 고강도 탄성판(8)에 에폭시 주입구(9)를 설치하고 에폭시 주입제(2) 주입시, 1차는 저압으로 주입하여 탄성섬유(7)의 외부측을 적시어서 밀폐시키면서 고강도 탄성판(8)과 접합시키며 2차 주입하여 콘크리트 균열부위(12)에 주입되면서 탄성섬유(7)와 콘크리트(10) 사이에 충전되어 접합되게 하고 2차 주입시는 중 고압으로 주입 충전하여 콘크리트 면, 균열부위와 탄성섬유 그리고 탄성판을 주입제로 접착 일체화하여 보강하는 콘크리트 구조물 균열의 압착주입 보강공법.High-strength elasticity while V-cutting 15 the cracks 12 of the concrete structure 10 and chipping the holes 5 in the concrete face 10 and then anchoring the anchor bolts 6 and covering the elastic fibers 7 Assemble the plate (8), install the epoxy injection hole (9) in the high-strength elastic plate (8), and when the epoxy injection (2) injection, the primary injection at low pressure to wet and seal the outer side of the elastic fiber (7) Bonded with high-strength elastic plate (8) and the second injection is injected into the concrete cracking portion 12, and is filled and bonded between the elastic fiber (7) and the concrete (10), the second injection is filled with medium and high pressure Compression injection reinforcement method for cracks in concrete structures in which the concrete surface, cracks, elastic fibers, and elastic plates are bonded and reinforced with injection agent. 제1항에 있어서, 고강도 탄성판은 탄성섬유(7)를 에폭시 수지(2)를 사용하여 침지적층한 에폭시 FRP 판(8)인 콘크리트 구조물 균열의 압착주입 보강공법.The method of claim 1, wherein the high-strength elastic plate is an epoxy FRP plate (8) in which elastic fibers (7) are immersed and laminated using an epoxy resin (2).
KR1019950011629A 1995-05-11 1995-05-11 Method for reinforcing cracked concrete structure KR0164667B1 (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
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KR100377269B1 (en) * 1999-06-19 2003-03-28 이옥신 Repair or suppiementary method of concrete construction with transparent resin panel
KR100435099B1 (en) * 2001-10-31 2004-06-09 구일건설(주) The panel reinforcement method of construction in negative moment section of bridge

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EP1346118A4 (en) * 2000-10-30 2007-05-30 Maintenance Professional Co Lt Composite panel for repairing, reinforcing concrete body and method of using the same
KR100489515B1 (en) * 2001-01-29 2005-05-12 주식회사 엠타임 Panel for repairing, reinforcing con'c body and method of using the same
KR100426257B1 (en) * 2001-03-29 2004-04-13 (주)일육시스템 Method of reinforcing a structure with inserting a reinforcing material horizontally
KR100413228B1 (en) * 2001-05-22 2003-12-31 지오콘머테리얼 주식회사 Method of construction for repairing crack and coming-off of concrete structures using ultra-fine particles suspension or polymer ceramics hybrid suspension grouts
KR100412049B1 (en) * 2001-06-27 2003-12-24 정한복 method and apparatus for reinforcing concrete structure
KR20030023901A (en) * 2001-09-14 2003-03-26 주식회사 제트화이버코리아 Method for Repairing and Reinforcing Concrete Structure
KR100501747B1 (en) * 2002-01-21 2005-07-18 주식회사 동일화스너상사 Sealing constructing method for preventing epoxy leakage when attaching steel plates on by anchor bolts and apparatus thereof

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100377269B1 (en) * 1999-06-19 2003-03-28 이옥신 Repair or suppiementary method of concrete construction with transparent resin panel
KR100435099B1 (en) * 2001-10-31 2004-06-09 구일건설(주) The panel reinforcement method of construction in negative moment section of bridge

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