1. Professor, Dept. of Civil and Structural Engineering, Hong Kong Polytechnic Univ., Hung Hom, Kowloon, Hong Kong, China.
2. Associate Professor, Dept. of Civil Engineering, Southeast Univ., Nanjing, China; formerly, PhD Candidate, Dept. of Civil and Structural Engineering, Hong Kong Polytechnic Univ., Hung Hom, Kowloon, Hong Kong, China.