[논문]건축물 균열 모니터링을 위한 역학변색센서 활용 기법에 관한 연구

최경철; 김홍섭; 전준서; 이문환; 편수정; 남정수

doi:10.5345/jkibc.2023.23.1.069

건축물 균열 모니터링을 위한 역학변색센서 활용 기법에 관한 연구
A Study on the Application Method of Mechanochromic Sensor for Crack Monitoring in Buildings 원문보기

한국건축시공학회지 = Journal of the Korea Institute of Building Construction, v.23 no.1, 2023년, pp.69 - 79

최경철 (Department of Building Research, Korea Institute of Civil engineering and Building Technology) , 김홍섭 (Department of Building Research, Korea Institute of Civil engineering and Building Technology) , 전준서 (Department of Geotechnical Engineering Research, Korea Institute of Civil engineering and Building Technology) , 이문환 (Department of Building Research, Korea Institute of Civil engineering and Building Technology) , 편수정 (Department of Architectural Engineering, Chungnam National University) , 남정수 (Department of Architectural Engineering, Chungnam National University)

초록
AI-Helper

본 연구에서는 역학변색센서를 활용한 건축물의 균열 모니터링 기술 개발에 관한 실험적 연구를 수행하였다. 콘크리트 시험체에 유도된 균열에 역학변색센서를 부착한 후 균열의 진행에 따른 변색 이미지를 촬영하였다. 그리고 센서의 변색 이미지 분석 결과와 균열 폭과의 관계식으로부터 균열 폭 도출 식을 제안하였다. 또한, 제안된 균열 폭 모니터링 기법의 검증을 통하여 건축물 균열 모니터링을 위한 역학변색센서의 활용 가능성을 확인하였다.

Abstract ▼ AI-Helper

In this study, an experimental study was conducted on the development of crack monitoring technology in buildings using a mechanochromic sensor. After attaching a mechanochromic sensor to the cracks induced in the concrete specimen, the color variation image of the sensor according to the progress of the cracks was taken. In addition, a method of analyzing a sensor color variation image was proposed, and an equation for deriving a crack's width from the relationship between the analysis result and the crack width was also proposed. In addition, the possibility of using an mechanochromic sensor for monitoring cracks in buildings was confirmed through the verification of crack width monitoring technology.

주제어

표/그림 (12)

그림 Figure 1. Shape and structure of mechanochromic sensor
그림 Figure 2. Test method for crack monitoring using mechanochromic sensor
그림 Figure 3. Color change of mechanochromic sensor with tensile strain
그림 Figure 4. RGB color analysis(Undeformed area in mechanochromic sensor)
그림 Figure 5. RGB color analysis(Deformed area in mechanochromic sensor)
그림 Figure 6. HSV color analysis(Deformed area in mechanochromic sensor)
그림 Figure 7. Process of removing background from a captured image
표 Table 1. HSV analysis range for background Removal
그림 Figure 8. Hmax and H_min values per sensor image frame
그림 Figure 9. Relationship between tensile strain and dH
그림 Figure 10. Sensor attachment status for beam member crack monitoring
표 Table 2. Results of comparison of crack width derived by image analysis and crack scale

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