1. Research Engineer, Hanwha Research Institute of Technology, 6 Shinsungdong, Yousunggu, Daejeon, South Korea.
2. Graduate Student, Dept. of Civil, Architectural and Environmental System Engineering, Sungkyunkwan Univ., Suwon, South Korea.
3. Associate Professor, Dept. of Civil, Architectural and Environmental System Engineering, Sungkyunkwan Univ., Suwon, South Korea (corresponding author).