1. Assoc. Prof., Dept. of Civ. Engrg., Hong Kong Univ. of Sci. and Technol., Clear Water Bay, Kowloon, Hong Kong.
2. Prof., Dept. of Civ. Engrg., Hong Kong Univ. of Sci. and Technol., Clear Water Bay, Kowloon, Hong Kong.
3. Assoc. Prof., Dept. of Bridge Engrg., Tongji Univ., Shanghai, China.