1. Research Professor, Dept. of Civil Engineering, Chungnam National Univ., 99 Daehak-ro, Yuseong-gu, Daejeon 34134, Republic of Korea.
2. Associate Professor, Dept. of Civil Engineering, Chungnam National Univ., 99 Daehak-ro, Yuseong-gu, Daejeon 34134, Republic of Korea (corresponding author).
3. Research Fellow, Structure Research Division, Korea Expressway Corporation Research Institute, 922 Dongbudae-ro, Hwaseong, Gyeonggi-do 20896, Republic of Korea.
4. Representative Director, Nanovic Engineering, Inc., 24 Dongnam-ro 75-gil, Gangdong-gu, Seoul 05269, Republic of Korea.