1. Ph.D. Student, Dept. of Civil and Structural Engineering, The Hong Kong Polytechnic Univ., Hong Kong, China.
2. Associate Professor, Dept. of Civil and Structural Engineering, The Hong Kong Polytechnic Univ., Hong Kong, China.
3. Chair Professor of Structural Engineering, Dept. of Civil and Structural Engineering, The Hong Kong Polytechnic Univ., Hong Kong, China.
4. Professor, Dept. of Civil Engineering, Zhejiang Univ., Hangzhou 310027, China.