1. Associate Professor, Dept. of Civil and Environmental Engineering, 112 Perkins Hall, Univ. of Tennessee, Knoxville, TN 37996-2010 (corresponding author). E-mail: lhan@utk.edu
2. Senior Associate, PTV America, Inc., 1300 N. Market St., Suite 603, Wilmington, DE 19801. E-mail: fyuan@ptvamerica.com
3. Professor and Goodrich Chair of Excellence, Dept. of Civil and Environmental Engineering, 219B Perkins Hall, Univ. of Tennessee, Knoxville, TN 37996-2010. E-mail: turbanik@utk.edu