1. Ph.D. Candidate, Dept. of Civil Engineering, Faculty of Engineering, Shahid Bahonar Univ. of Kerman, 22 Bahman Blvd., P.O. Box 76175-133, Kerman, Iran.
2. Professor, Dept. of Civil Engineering, Faculty of Engineering, Shahid Bahonar Univ. of Kerman, 22 Bahman Blvd., P.O. Box 76175-133, Kerman, Iran (corresponding author).