1. Assistant Professor, K.N. Toosi Univ. of Technology, West Mirdamad St., # 470, Tehran 1969764499, Iran (corresponding author).
2. Ph.D. Candidate, Dept. of Civil and Environmental Engineering, Univ. of Nevada, Reno, NV 89557.
3. Graduate Research Assistant, Dept. of Civil and Environmental Engineering, Univ. of Nevada, Reno, NV 89557.
4. Professor and Dean, College of Engineering, Univ. of Nevada, Reno, NV 89557.