1. Ph.D. Candidate, Faculty of Civil Engineering, Sahand Univ. of Technology, P.O. Box 51335/1996, Tabriz, Iran.
2. Associate Professor, Faculty of Civil Engineering, Sahand Univ. of Technology, P.O. Box 51335/1996, Tabriz, Iran (corresponding author).
3. Researcher, Faculty of Civil Engineering, Sahand Univ. of Technology, P.O. Box 51335/1996, Tabriz, Iran.
4. Assistant Professor, Faculty of Civil Engineering, Sahand Univ. of Technology, P.O. Box 51335/1996, Tabriz, Iran.