1. Assistant Professor, School of Civil Engineering, College of Engineering, Univ. of Tehran, 16 Azar St., Enghelab Ave., Tehran 1417614411, Iran (corresponding author).
2. Graduate Research Assistant, School of Civil Engineering, College of Engineering, Univ. of Tehran, Tehran 3414754478, Iran.
3. Assistant Professor, Dept. of Civil Engineering, North Carolina A&T State Univ., 1601 E. Market St., Greensboro, NC 27411.
4. Graduate Research Assistant, North Carolina A&T State Univ., 447 McNair Hall, Greensboro, NC 27411.