1. Senior Lecturer, Faculty of Engineering, Dept. of Civil and Environmental Enginnering, The Univ. of Auckland, New Zealand; formerly, Lecturer, Dept. of Building and Construction, City Univ. of Hong Kong, 83 Tat Chee Ave., Hong Kong (corresponding author).
2. Instructor, Dept. of Building and Construction, City Univ. of Hong Kong, 83 Tat Chee Ave., Hong Kong.
3. Project Student, Dept. of Building and Construction, City Univ. of Hong Kong, 83 Tat Chee Ave., Hong Kong.