1. Graduate student, Department of Civil Engineering, Inha University, Michuhol-gu, Incheon, South Korea
2. Assistant Mannager, Facility Diagnosis Department, Korea Electric Power Corporation, Naju-si, Jeollannam-do, South Korea
3. Senior Researcher, Korea Expressway Corporation Research Institute, Korea Expressway Corporation, Hwaseong-si, Gyeonggi-do, South Korea
4. Professor, Department of Civil Engineering, Inha University, Michuhol-gu, Incheon, South Korea (corresponding author: )