1. Master Candidate, Dept. of Construction and Building, Arab Academy for Science, Technology and Maritime Transport, Elhorria El Moshir Ahmed Ismail St., P.O. Box 2033, Heliopolis, Cairo, Egypt (corresponding author).
2. Associate Professor, Faculty of Engineering, Mataria, Helwan Univ., Helwan, Egypt.
3. Associate Professor, Dept. of Construction and Building, Arab Academy for Science, Technology and Maritime Transport, Elhorria El Moshir Ahmed Ismail St., P.O. Box 2033, Heliopolis, Cairo, Egypt.