1. Postdoctoral Fellow, Dept. of Civil and Environmental Engineering, Univ. of Alberta, 7-203 Donadeo Innovation Centre for Engineering, 9211 116 St., NW, Edmonton, AB, Canada T6G 1H9.
2. Assistant Professor, Dept. of Civil and Environmental Engineering, Hanyang Univ., 222 Wangsimni-ro, Seongdong-gu, Seoul 133-791, Korea.
3. Professor, Dept. of Civil and Environmental Engineering, Univ. of Alberta, 7-203 Donadeo Innovation Centre for Engineering, 9211 116 St., NW, Edmonton, AB, Canada T6G 1H9 (corresponding author).