1. Research Associate, Dept. of Civil Engineering, Clemson Univ., Clemson, SC 29634 (corresponding author).
2. Assistant Professor, Dept. of Engineering Technology, Texas State Univ., San Marcos, TX 78666.
3. Professor, Dept. of Civil Engineering, Clemson Univ., Clemson, SC 29634.
4. Researcher, Korea Institute of Construction Technology, 2311, Daehwa-dong, Ilsan-gu, Goyang-si, Gyeonggi-do, Korea, 411-712.