1. Dept. of Civil Engineering, Faculty of Engineering, Harran Univ., Urfa 63300, Turkey.
2. Center for Interdisciplinary Research, International Black Sea Univ., Tbilisi 0131, Georgia.
3. Dept. of Civil Engineering, Faculty of Engineering, Inonu Univ., Malatya 44280, Turkey (corresponding author).
4. Dept. of Civil Engineering, Faculty of Engineering, Firat Univ., Elazig 23119, Turkey.