KR101453072B1 - 복합 섬유판 및 이를 이용한 콘크리트 구조물의 휨, 전단 및 내진성능 향상 보강공법 - Google Patents
복합 섬유판 및 이를 이용한 콘크리트 구조물의 휨, 전단 및 내진성능 향상 보강공법 Download PDFInfo
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- KR101453072B1 KR101453072B1 KR1020140038510A KR20140038510A KR101453072B1 KR 101453072 B1 KR101453072 B1 KR 101453072B1 KR 1020140038510 A KR1020140038510 A KR 1020140038510A KR 20140038510 A KR20140038510 A KR 20140038510A KR 101453072 B1 KR101453072 B1 KR 101453072B1
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- B32B27/00—Layered products comprising a layer of synthetic resin
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/22—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed
- B32B5/24—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer
- B32B5/26—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer another layer next to it also being fibrous or filamentary
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- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/45—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements
- C04B41/46—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with organic materials
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- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
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- D04H1/48—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres in combination with at least one other method of consolidation
- D04H1/488—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres in combination with at least one other method of consolidation in combination with bonding agents
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
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- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
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Abstract
Description
도 2는 본 발명에 따른 복합 섬유판을 이용한 휨인장, 내진 성능 향상 보강을 실시한 상태를 도시한 단면도.
도 3은 도 2의 A에서 도시한 상세도.
도 4는 본 발명에 따른 복합 섬유판과 메카니컬 앵커 또는 케미컬 앵커 시스템을 이용한 휨인장, 전단보강 및 내진성능 향상 보강 상태를 도시한 단면도.
도 5는 본 발명에서 전단 보강시 삼각 앵커링 플레이트를 적용하였을 때의 휨인장, 전단보강 및 내진성능 향상 보강 상태를 도시한 단면도.
도 6은 무보강 RC-T 빔의 휨인장 시험을 실시한 개략도.
도 7은 복합 섬유판을 에폭시 부착방법으로 보강한 후 RC-T 빔의 휨인장 시험을 실시한 개략도.
도 8은 복합 섬유판 에폭시 부착 + 양 끝단을 앵커 볼트로 보강한 후 RC-T 빔의 휨인장 시험을 실시한 개략도.
도 9는 복합 섬유판 에폭시 부착 + 전단지역에 일정간격으로 6개 앵커링 으로 보강한 후 RC-T 빔의 휨인장 시험을 실시한 개략도.
도 10은 복합 섬유판 에폭시 부착 + 양 끝단 앵커 볼트 2개소 + 전단지역 4개소에 앵커링으로 보강한 후 RC-T 빔의 휨인장 시험을 실시한 개략도.
도 11은 도 6 내지 10에서 시험한 결과를 나타낸 그래프.
보강 방법 | 파괴 하중 |
무보강 | 60kN×2 |
에폭시로 복합 섬유판 부착 | 80kN×2 |
에폭시로 복합 섬유판 부착+양 끝단 앵커링볼트(2개소) 설치 | 92kN×2 |
에폭시로 복합 섬유판 부착+전단지역에 일정간격으로 앵커링 볼트(6개소) 설치 | 103kN×2 |
에폭시로 복합 섬유판 부착+양 끝단 앵커링 볼트(2개소)+ 전단지역에 앵커링 볼트(4개소) 설치 | 117kN×2 |
a2 : 케미컬 앵커 롯드
A3 : 앵커링 볼트
h1 : 전단보강 홈 h2 : 앵커 홈 N : 너트 S : 전단 균열 F : 채움재
W : 앵커링 플레이트 E1 : 에폭시 수지
30 : 복합 섬유판
10 : 일방향 섬유판
20 : 보강시트
Claims (16)
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- 콘크리트 구조물의 전단 균열 범위를 확인하여 전단보강을 위한 위치 및 범위를 확인하는 전단 보강범위 확인단계;
콘크리트 구조물에 발생한 전단 균열의 방향성을 확인하는 전단 균열 방향성 확인단계;
상기 전단 보강범위 확인단계에서 확인한 전단보강 위치 및 범위에 비파괴 검사를 통해 콘크리트 구조물 내부에 매설된 배근 철근을 확인한 후 전단보강을 위한 앵커 삽입 위치를 선정하는 앵커 위치 선정단계;
휨 보강을 하고자 하는 콘크리트 구조물의 표면을 정리하는 콘크리트 구조물 표면정리 단계;
일방향으로 섬유사가 배열되어 있으며, 전체 중량에서 80 ∼ 90중량%로 이루어져 있는 일방향 섬유판과, 상기 일방향 섬유판의 타공시 일방향 섬유판이 갈라지는 현상을 방지하도록 상기 일방향 섬유판의 상, 하측면 중 어느 한면 또는 양면에 접착제에 의해 접착되되 전체 중량에서 10 ∼ 20중량%로 이루어져 있는 보강시트로 이루어져 있는 복합 섬유판에 접착수단을 도포한 후 휨 보강을 위한 콘크리트 구조물에 부착하는 복합 섬유판 부착단계;
상기 앵커 위치 선정단계에서 선정한 위치와 콘크리트 구조물에 부착한 복합 섬유판 중 양 끝단에 복합 섬유판을 관통하여 콘크리트 구조물 일부에 형성되는 전단보강 홈과 앵커 홈을 형성한 후 메카니컬 앵커 또는 케미컬 앵커 시스템 및 앵커링 볼트와 앵커링 플레이트 및 너트를 결합하는 시공완료단계;로 이루어진 것에 특징이 있는 복합 섬유판 및 메카니컬 앵커를 이용한 콘크리트 구조물의 휨, 전단 및 내진성능 향상 보강공법.
- 제 11항에 있어서, 상기 복합 섬유판 부착단계에서 복합 섬유판에 형성되는 보강시트가 어느 한 면에만 형성되었을 경우에는 보강시트가 형성되지 않은 탄소섬유판의 면에 접착수단을 도포한 후 콘크리트 구조물에 부착하는 것에 특징이 있는 복합 섬유판 및 메카니컬 앵커를 이용한 콘크리트 구조물의 휨, 전단 및 내진성능 향상 보강공법.
- 제 11항에 있어서, 상기 복합 섬유판 부착단계에서 일방향 섬유판은 Tex(굵기)가 800 ∼ 1,600 또는 탄소섬유사가 12,000 ~ 24,000개인 탄소섬유 스트랜드를 다수 결합하여 제작하며, 제작된 일방향 탄소섬유판은 인장강도가 2,200 ~ 3,200 MPa, 탄성계수가 160 ~ 250 GPa인 것에 특징이 있는 복합 섬유판 및 메카니컬 앵커를 이용한 콘크리트 구조물의 휨, 전단 및 내진성능 향상 보강공법.
- 제 11항에 있어서, 상기 복합 섬유판 부착단계에서 일방향 섬유판은 Tex(굵기)가 1,200 ~ 2,400인 유리섬유 스트랜드를 다수 결합하여 제작하며 제작된 일방향 유리섬유판은 인장강도가 1700 ~ 3,000 MPa, 탄성계수가 65 ~ 70 GPa인 것에 특징이 있는 복합 섬유판 및 메카니컬 앵커를 이용한 콘크리트 구조물의 휨, 전단 및 내진성능 향상 보강공법.
- 제 11항에 있어서, 상기 복합 섬유판 부착단계에서 보강시트는 탄소섬유 부직포 또는 폴리에스터 부직포 중 선택된 어느 하나의 재질로 이루어져 으며, 상기 부직포는 각방향의 인장강도가 20 ∼ 80 kN/m 이고 중량이 20 ∼ 100g/㎡인 것에 특징이 있는 복합 섬유판 및 메카니컬 앵커를 이용한 콘크리트 구조물의 휨, 전단 및 내진성능 향상 보강공법.
- 제 11항에 있어서, 상기 시공완료단계에서의 앵커링 플레이트의 폭은 복합 섬유판의 폭과 동일 또는 더 크게 형성하는 것에 특징이 있는 복합 섬유판 및 메카니컬 앵커를 이용한 콘크리트 구조물의 휨, 전단 및 내진성능 향상 보강공법.
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KR20010040233A (ko) * | 1999-04-14 | 2001-05-15 | 사토 아키오 | 적층체 |
JP2004330752A (ja) * | 2003-05-01 | 2004-11-25 | Masanobu Sakamoto | 高強度薄肉コンクリート二次製品 |
KR101189549B1 (ko) * | 2012-05-18 | 2012-10-11 | 주식회사 에이씨이테크 | 아스팔트 포장 균열 방지용 부직포 및 그 제조방법, 이를 이용한 아스팔트 포장 및 교량 방수 포장 방법 |
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KR20010040233A (ko) * | 1999-04-14 | 2001-05-15 | 사토 아키오 | 적층체 |
JP2004330752A (ja) * | 2003-05-01 | 2004-11-25 | Masanobu Sakamoto | 高強度薄肉コンクリート二次製品 |
KR101189549B1 (ko) * | 2012-05-18 | 2012-10-11 | 주식회사 에이씨이테크 | 아스팔트 포장 균열 방지용 부직포 및 그 제조방법, 이를 이용한 아스팔트 포장 및 교량 방수 포장 방법 |
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KR102757086B1 (ko) * | 2023-12-21 | 2025-01-21 | 주식회사 콘포스 | 섬유패널과 지압판 결합을 이용한 콘크리트 보강 시스템 |
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