1. Ph.D. Candidate, Dept. of Civil, Construction and Environmental Engineering, Univ. of Alabama at Birmingham, Hoehn Engineering Building, 1075 13th St. South, Birmingham, AL 35294.
2. Assistant Professor, Dept. of Civil, Construction and Environmental Engineering, Univ. of Alabama at Birmingham, Hoehn Engineering Building, 1075 13th St. South, Birmingham, AL 35294 (corresponding author).