1. Associate Professor, Dept. of Civil Engineering, Ege Univ., Bornova, Izmir 35100, Turkey (corresponding author).
2. Associate Professor, Dept. of Civil Engineering, Dokuz Eylul Univ., Buca, Izmir 35160, Turkey.
3. Research Assistant, Dept. of Civil Engineering, Ege Univ., Bornova, Izmir 35100, Turkey.