1. Visiting Assistant Professor, Division of Building Science and Technology, City Univ. of Hong Kong, Hong Kong (corresponding author).
2. Professor, Birmingham School of the Built Environment, Birmingham City Univ., Birmingham B42 2SU, U.K.
3. Ph.D. Candidate, Dept. of Civil Engineering, Curtin Univ., Bentley, WA 6102, Australia.
4. Professor, Dept. of Civil Engineering, Curtin Univ., Bentley, WA 6102, Australia.