1. Ph.D. Candidate, Dept. of Civil Engineering, Isfahan Univ. of Technology, P.O. Box 84156, Isfahan, Iran (corresponding author).
2. Associate Professor, Dept. of Civil Engineering, Isfahan Univ. of Technology, P.O. Box 84156, Isfahan, Iran.
3. Formerly, Assistant Professor, Dept. of Mechanical Engineering, Isfahan Univ. of Technology, P.O. Box 84156, Isfahan, Iran.