1. Res. Fellow, School of Civ. and Struct. Engrg., Nanyang Technol. Univ., Singapore 639798; formerly, Grad. Student, Dept. of Civ. Engrg., Univ. of Hong Kong, Pokfulam Rd., Hong Kong.
2. Assoc. Prof., Dept. of Civ. Engrg., Univ. of Hong Kong, Pokfulam Rd., Hong Kong.
3. Chair Prof., Dept. of Civ. Engrg., Univ. of Hong Kong, Pokfulam Rd., Hong Kong.