1. Assistant Professor, Glenn Dept. of Civil Engineering, Clemson Univ., 109 Lowry Hall, Clemson, SC 29634 (corresponding author).
2. Graduate Assistant, Glenn Dept. of Civil Engineering, Clemson Univ., 109 Lowry Hall, Clemson, SC 29634.
3. Associate Professor, Glenn Dept. of Civil Engineering, Clemson Univ., 109 Lowry Hall, Clemson, SC 29634.