1. Fellow, ASCE
2. Prof., Dept. of Mech., Zhejiang Univ., Hangzhou 310027, China.
3. Assoc. Prof., Dept. of Mech., Zhejiang Univ., Hangzhou 310027, China.
4. Res. Fellow, Dept. of Civ. and Struct. Engrg., Hong Kong Polytechnic Univ., Kowloon, Hong Kong.
5. Chair Prof., and Head, Dept. of Civ. and Struct. Engrg., Hong Kong Polytechnic Univ., Kowloon, Hong Kong (corresponding author).