1. Professor, Dept. Civil Engineering, Dokuz Eylul Univ., Tinaztepe, 35160 Izmir, Turkey.
2. Professor, Dept. Civil Engineering, Izmir Institute of Technology, Urla, 35430 Izmir, Turkey (corresponding author).
3. Assistant Professor, Dept. Civil Engineering, Ege Univ., Bornova, 35040 Izmir, Turkey.
4. Associate Professor, Dept. Civil Engineering, Izmir Institute of Technology, Urla, 35430 Izmir, Turkey.