1. Assistant Professor, Dept. of Civil Engineering, Nevsehir Hacı Bektaş Veli Univ., Nevsehir 50300, Turkey.
2. Assistant Professor, Dept. of Civil Engineering, Bitlis Eren Univ., Bitlis 13100, Turkey (corresponding author).
3. Professor, Dept. of Civil Engineering, Firat Univ., Elazig 23119, Turkey.
4. Professor, Dept. of Civil and Environmental Engineering, Wayne State Univ., Detroit, MI 48202.