1. Associate Professor, Civil Engineering Dept., Beni-Suef Univ., Shark El-Nile, New Beni Suef City, Beni-Suef, Egypt. Formerly, Researcher, Civil Engineering Dept. Graduate School of Engineering, Gunma Univ., Tenjin-1, Kiryu-shi, Gunma, 376-8515, Japan (corresponding author).
2. Professor, Civil and Environmental Engineering Dept., Graduate School of Engineering, Gunma Univ., Japan.
3. Ph.D. Candidate, Civil and Environmental Engineering Dept., Graduate School of Engineering, Gunma Univ., Japan.