KR20090091090A - 광섬유 복합 강연선을 활용한 교량 구조물의 건전성 모니터링 방법 - Google Patents
광섬유 복합 강연선을 활용한 교량 구조물의 건전성 모니터링 방법 Download PDFInfo
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- KR20090091090A KR20090091090A KR1020090065487A KR20090065487A KR20090091090A KR 20090091090 A KR20090091090 A KR 20090091090A KR 1020090065487 A KR1020090065487 A KR 1020090065487A KR 20090065487 A KR20090065487 A KR 20090065487A KR 20090091090 A KR20090091090 A KR 20090091090A
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- optical fiber
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- 238000000034 method Methods 0.000 title claims abstract description 40
- 238000012544 monitoring process Methods 0.000 title claims abstract description 19
- 230000036541 health Effects 0.000 title claims description 16
- 239000000835 fiber Substances 0.000 title claims description 8
- 239000013307 optical fiber Substances 0.000 claims abstract description 71
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 47
- 239000010959 steel Substances 0.000 claims abstract description 47
- 239000000463 material Substances 0.000 claims abstract description 13
- 239000004567 concrete Substances 0.000 claims description 12
- 239000004593 Epoxy Substances 0.000 claims description 11
- 239000002131 composite material Substances 0.000 claims description 10
- 238000010276 construction Methods 0.000 claims description 9
- 238000001514 detection method Methods 0.000 claims description 5
- 230000001678 irradiating effect Effects 0.000 claims description 2
- 238000003780 insertion Methods 0.000 claims 1
- 230000037431 insertion Effects 0.000 claims 1
- 230000008859 change Effects 0.000 abstract description 6
- 239000011513 prestressed concrete Substances 0.000 description 5
- 230000008901 benefit Effects 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 238000002360 preparation method Methods 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
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- 238000000465 moulding Methods 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 238000010924 continuous production Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- 230000008569 process Effects 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/16—Measuring arrangements characterised by the use of optical techniques for measuring the deformation in a solid, e.g. optical strain gauge
- G01B11/165—Measuring arrangements characterised by the use of optical techniques for measuring the deformation in a solid, e.g. optical strain gauge by means of a grating deformed by the object
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
- G01D5/26—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light
- G01D5/32—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light
- G01D5/34—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells
- G01D5/353—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells influencing the transmission properties of an optical fibre
- G01D5/35306—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells influencing the transmission properties of an optical fibre using an interferometer arrangement
- G01D5/35309—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells influencing the transmission properties of an optical fibre using an interferometer arrangement using multiple waves interferometer
- G01D5/35316—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells influencing the transmission properties of an optical fibre using an interferometer arrangement using multiple waves interferometer using a Bragg gratings
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/04—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings formed by bundles of fibres
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0014—Type of force applied
- G01N2203/0016—Tensile or compressive
- G01N2203/0017—Tensile
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Length Measuring Devices By Optical Means (AREA)
- Optical Transform (AREA)
Abstract
Description
Claims (4)
- 중앙에 위치하는 제1강선과, 상기 제1강선의 주위를 둘러싸며 서로 꼬인 여섯 가닥의 제2강선을 포함하는 강연선의 상기 제1강선에 상기 강연선의 길이방향의 관통공이 형성된 강연선을 마련하는 강연선 마련단계;상기 강연선의 상기 관통공에 광섬유센서를 삽입하여 광섬유 복합 강연선을 마련하는 광섬유 복합 강연선 마련단계;상기 광섬유 복합 강연선을 구조재로 이용하여 교량을 시공하는 시공단계;상기 광섬유 복합 강연선의 광섬유센서에 광을 조사하는 광조사단계; 및,상기 광섬유센서를 통과한 광을 검출하여 상기 강연선의 변형률을 측정하는 측정단계; 를 포함하는 것을 특징으로 하는 교량 구조물의 건전성 모니터링 방법.
- 제 1항에 있어서,상기 광섬유센서는 광섬유에 일정간격으로 격자 감지부가 형성된 광섬유 브래그 격자 센서이고,상기 측정단계는, 상기 광섬유 브래그 격자 센서 내의 격자 감지부에 반사된 광 및 상기 격자 감지부를 통과한 광을 검출하여 이루어지는 것을 특징으로 하는 교량 구조물의 건전성 모니터링 방법.
- 제 1항에 있어서,광섬유 브래그 격자 센서의 삽입 단계 이후에상기 관통공에 에폭시를 충전하고 경화시키는 단계;를 더 포함하는 것을 특징으로 하는 교량 구조물의 건전성 모니터링 방법.
- 제 1항에 있어서,상기 강연선은 상기 교량을 형성하는 콘크리트에 프리스트레스를 가하기 위한 긴장재로 사용되는 것을 특징으로 하는 교량 구조물의 건전성 모니터링 방법.
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KR1020090065487A KR100956686B1 (ko) | 2009-07-17 | 2009-07-17 | 광섬유 복합 강연선을 활용한 교량 구조물의 건전성 모니터링 방법 |
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KR1020060115477A Division KR20080046045A (ko) | 2006-11-21 | 2006-11-21 | 광섬유 복합 강연선을 활용한 교량 구조물 및 그 교량구조물의 건전성 모니터링 방법 |
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Cited By (2)
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CN102162773A (zh) * | 2010-12-24 | 2011-08-24 | 广州工程总承包集团有限公司 | 基于无线通信技术的集群式桥梁健康实时监测系统及方法 |
CN110441148A (zh) * | 2019-05-30 | 2019-11-12 | 大连理工大学 | 一种损伤自诊断和自定位钢绞线智能索 |
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JPS622412A (ja) * | 1985-06-28 | 1987-01-08 | 株式会社フジクラ | 光ファイバ複合架空線 |
JP2006250647A (ja) * | 2005-03-09 | 2006-09-21 | Jfe Koken Corp | ワイヤケーブル、並びに張力測定システム及び張力測定方法 |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
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CN102162773A (zh) * | 2010-12-24 | 2011-08-24 | 广州工程总承包集团有限公司 | 基于无线通信技术的集群式桥梁健康实时监测系统及方法 |
CN110441148A (zh) * | 2019-05-30 | 2019-11-12 | 大连理工大学 | 一种损伤自诊断和自定位钢绞线智能索 |
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