1. Ph.D. Candidate, Faculty of Civil Engineering, Istanbul Technical Univ., Istanbul 34469, Turkey (corresponding author).
2. Ph.D. Candidate, Dept. of Civil and Structural Engineering, Univ. of Sheffield, Sheffield S13JD, UK.
3. Ph.D. Candidate, Faculty of Engineering, Balikesir Univ., Balikesir 10145, Turkey.
4. Member of Board of Directors, Fibrobeton Yapi Elemanlari San. Ins. Tic. A.S., Erturk Sokak No. 11, Kavacik, Istanbul 34810, Turkey.
5. Professor, Faculty of Civil Engineering, Istanbul Technical Univ., Istanbul 34469, Turkey.