1. Assistant Lecturer Faculty of Engineering, Cairo Univ., Cairo, Egypt; formerly, Ph.D. Candidate, Dept. of Civil Engineering, McMaster Univ., Hamilton, ON, Canada L8S 4L7.
2. Martini Mascarin and George Chair in Masonry Design, Director, Applied Dynamics Laboratory, Dept. of Civil Engineering, McMaster Univ., Hamilton, ON, Canada L8S 4L7 (corresponding author).
3. Assistant Professor, Dept. of Structural Engineering, Ain Shams Univ., Cairo 1156, Egypt.