1. Ph.D. Candidate, Dept. of Civil and Environmental Engineering, Hong Kong Polytechnic Univ., Hong Kong, China.
2. Assistant Professor, Dept. of Civil and Environmental Engineering, Hong Kong Polytechnic Univ., Hong Kong, China (corresponding author).
3. Chair Professor of Structural Engineering, Dept. of Civil and Environmental Engineering, Hong Kong Polytechnic Univ., Hong Kong, China.