1. Ph.D. Candidate, Dept. of Civil Engineering, Univ. of Sherbrooke, Sherbrooke, Quebec, Canada J1K 2R1.
2. Postdoctoral Fellow, Dept. of Civil Engineering, Univ. of Sherbrooke, Sherbrooke, Quebec, Canada J1K 2R1; and Lecturer, Dept. of Civil Engineering, Menoufiya Univ., Egypt.
3. NSERC and Tier-1 Canada Research Chair Professor, Dept. of Civil Engineering, Univ. of Sherbrooke, Sherbrooke, Quebec, Canada J1K 2R1 (corresponding author).