1. Project Engineer, PSI, Inc., 13873 Park Center Road, Suite 315, Herndon, VA 20171.
2. Ph.D. Student, Dept. of Civil and Environmental Engineering, Univ. of Connecticut, Storrs, CT 06269.
3. Assistant Professor, Dept. of Civil and Environmental Engineering, Univ. of Connecticut, Storrs, CT 06269 (corresponding author).
4. Assistant Professor, Dept. of Civil and Environmental Engineering, Univ. of Connecticut, Storrs, CT 06269.