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http://dx.doi.org/10.21729/ksds.2022.15.4.31

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

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)
Publication Information
Journal of Korean Society of Disaster and Security / v.15, no.4, 2022 , pp. 31-38 More about this Journal
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.
Keywords
Drone; Special bridge; Cable-supported bridge; Safety inspection; Blind spot;
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