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Cable-supported Bridge Safety Inspection Blind Spot Elimination Technology using Drones

드론을 활용한 케이블지지교량 안전점검 사각지대 해소 기술

  • Sungjin Lee (Department of Structural Engineering Research, Korea Institute of Civil Engineering and Building Technology) ;
  • Bongchul Joo (Department of Structural Engineering Research, Korea Institute of Civil Engineering and Building Technology) ;
  • Jungho Kim (Department of Structural Engineering Research, Korea Institute of Civil Engineering and Building Technology)
  • 이성진 (한국건설기술연구원 구조연구본부) ;
  • 주봉철 (한국건설기술연구원 구조연구본부) ;
  • 김정호 (한국건설기술연구원 구조연구본부)
  • Received : 2022.11.25
  • Accepted : 2022.12.08
  • Published : 2022.12.31

Abstract

In the case of special bridges whose superstructure is supported by cables, there are many blind spots that are difficult to access without special equipment and personnel. As a result, there are difficulties in the safety inspection of special bridges. The purpose of this study is to review the inspection blind spots of cable-supported bridges such as cable-stayed bridges and suspension bridges, and to study ways to eliminate blind spots using drones. To this end, the cables, stiffened girder, and pylons of the cable-stayed bridge located in the sea were inspected using drones. Through this study, it was confirmed that external safety inspection of special bridges that are difficult for inspectors to access is possible using drones. In particular, drone inspection to check the external condition and damage of the pylon, which is a blind spot for inspection of special bridges, is a very effective safety inspection method.

케이블로 상부구조가 지지되는 특수교량의 경우 특수한 장비와 인력이 없이는 접근이 어려운 사각지대가 다수 존재하고 있어, 안전점검에 많은 애로사항이 발생하고 있는 것이 현실이다. 본 연구에서는 사장교와 현수교 등 케이블지지교량의 안전점검 사각지대를 검토하고, 드론을 활용하여 사각지대를 해소할 수 있는 방안을 연구하는 것이 목적이다. 이를 위해 해상에 위치한 사장교를 드론을 활용하여 케이블과 보강형 그리고 주탑을 점검하였다. 본 연구를 통해 드론을 활용하여 점검자의 접근이 어려운 특수교량의 외부 안전점검이 가능함을 확인하였다. 특히 특수교량의 점검사각지대인 주탑 외부 상태 및 손상 확인을 위한 드론 점검은 매우 효과적인 안전점검 방법이다.

Keywords

Acknowledgement

This work was supported by Korea Institute of Civil Engineering and Building Technology (Project Number : 20220183), granted financial resource from the Ministry of Science and ICT, Republic of Korea.

References

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