1. Dept. of Civil and Environmental Engineering, Seoul National Univ., 1 Gwanak-ro, Gwanak-gu, Seoul 08826, South Korea. ORCID: .
2. Advanced Railroad Civil Engineering Div., Korea Railroad Research Institute, 176, Cheoldobangmulgwan-ro, Uiwang-si, Gyeonggi-do 16105, South Korea (corresponding author). ORCID: .
3. Dept. of Civil and Environmental Engineering, Seoul National Univ., 1 Gwanak-ro, Gwanak-gu, Seoul 08826, South Korea.
4. Structural & Seismic Technology Group, Next Generation Transmission & Substation Laboratory, KEPCO Research Institute, 105 Munji-ro, Yuseong-gu, Daejeon 34056, South Korea.