Journal of the Korea Institute of Building Construction (한국건축시공학회지)

The Korean Institute of Building Construction (한국건축시공학회)
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A Study on the Application Method of Mechanochromic Sensor for Crack Monitoring in Buildings

건축물 균열 모니터링을 위한 역학변색센서 활용 기법에 관한 연구

  • Choe, Gyeong-Chol (Department of Building Research, Korea Institute of Civil engineering and Building Technology) ;
  • Kim, Hong-Seop (Department of Building Research, Korea Institute of Civil engineering and Building Technology) ;
  • Jeon, Jun-Seo (Department of Geotechnical Engineering Research, Korea Institute of Civil engineering and Building Technology) ;
  • Lee, Mun-Hwan (Department of Building Research, Korea Institute of Civil engineering and Building Technology) ;
  • Pyeon, Su-Jeong (Department of Architectural Engineering, Chungnam National University) ;
  • Nam, Jeong-Soo (Department of Architectural Engineering, Chungnam National University)
  • Received : 2022.11.17
  • Accepted : 2022.12.14
  • Published : 2023.02.20
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Abstract

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.

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.

Keywords

Acknowledgement

This work is supported by the Korea Agency for Infrastructure Technology Advancement(KAIA) grant funded by the Ministry of Land, Infrastructure and Transport(Grant 21CTAP-C163910-01).

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