1. Contracts and Procurement Manager, Sixth of October Development and Investment Company, Km. 38 Cairo-Alexandria Desert Rd., Sheikh Zayed City, P.O. Box 119, Sheikh Zayed, Cairo 12593, Egypt; formerly, M.Sc. Student, Dept. of Structural Engineering, Faculty of Engineering, Cairo Univ., Giza 12613, Egypt.
2. Senior Lecturer, School of Property, Construction and Project Management, RMIT Univ., G.P.O. Box 2476, Melbourne, VIC 3001, Australia; Associate Professor, Dept. of Structural Engineering, Faculty of Engineering, Cairo Univ., Giza 12613, Egypt (corresponding author).
3. Professor, Dept. of Structural Engineering, Faculty of Engineering, Cairo Univ., Giza 12613, Egypt.