1. Yildiz Technical Univ., Dept. of Civil Engineering, 34220, Istanbul, TR (Corresponding author), e-mail: abdsahin@yildiz.edu.tr; abdurrahmansahin@gmail.com
2. Karadeniz Technical Univ., Dept. of Civil Engineering, 61080 Trabzon, TR, e-mail: alemdar@ktu.edu.tr