1. Assistant Professor, Civil Engineering Dept., American Univ. of Sharjah, Sharjah, AE 26666 (Corresponding author), e-mail: zhkhan@aus.edu
2. Professor, Civil Engineering Dept., Univ. of Waterloo, Waterloo, ON N2L 3G1, CA.
3. Research Assistant, Civil Engineering Dept., Univ. of Waterloo, Waterloo, ON N2L 3G1, CA.
4. Professor, Civil Engineering Dept., Univ. of Toronto, Toronto, ON M5S 1A4, CA.