1. Assistant Professor, Dept. of Building and Construction, City Univ. of Hong Kong, 88 Tat Chee Ave., Kowloon, Hong Kong (corresponding author).
2. Research Student, Dept. of Building and Construction, City Univ. of Hong Kong, 88 Tat Chee Ave., Kowloon, Hong Kong.
3. Professor (Chair), Dept. of Building and Construction, City Univ. of Hong Kong, 88 Tat Chee Ave., Kowloon, Hong Kong.