1. Postdoctoral Fellow, College of Civil Engineering and Architecture, A810 Anzhong Building, Zhejiang Univ., Hangzhou 310058, China.
2. Lecturer, College of Civil Engineering and Architecture, A503 Anzhong Building, Zhejiang Univ., Hangzhou 310058, China.
3. Professor, College of Civil Engineering and Architecture, A511 Anzhong Building, Zhejiang Univ., Hangzhou 310058, China.
4. Professor, Dept. of Civil and Environmental Engineering, Univ. of Alberta, Edmonton, AB, Canada T6G 2W2.
5. Associate Professor, College of Civil Engineering and Architecture, A505 Anzhong Building, Zhejiang Univ., Hangzhou 310058, China (corresponding author).