1. Ph.D. Student, Dept. of Civil and Environmental Engineering, Tennessee Technological Univ., 1020 Stadium Dr., Cookeville, TN 38505-0001.
2. Assistant Professor, Dept. of Civil Engineering, Khomeinishahr Branch, Islamic Azad Univ., Khomeinishahr, 8418148499 Isfahan, Iran (corresponding author).
3. Associate Professor, Dept. of Civil and Environmental Engineering, Tennessee Technological Univ., 1020 Stadium Dr., Cookeville, TN 38505-0001.