1. Associate Professor, Dept. of Civil Engineering, Univ. of Hong Kong, Pokfulam Rd., Hong Kong SAR, China.
2. Postdoctoral Research Fellow, Dept. of Civil Engineering, Univ. of Hong Kong, Pokfulam Rd., Hong Kong SAR, China (corresponding author).
3. Ph.D. Candidate, Dept. of Civil Engineering, Univ. of Hong Kong, Pokfulam Rd., Hong Kong SAR, China.