1. Dept. of Building and Real Estate, Hong Kong Polytechnic University, Hong Kong, China (corresponding author).
2. Dept. of Civil and Environmental Engineering, Univ. of Alberta, Alberta, Canada.
3. Dept. of Civil Engineering, Chongqing Univ., Chongqing, China; formerly, Research Associate, Dept. of Building and Real Estate, Hong Kong Polytechnic Univ., Hong Kong, China.
4. Dept. of Civil and Structural Engineering, Hong Kong Polytechnic Univ., Hong Kong, China.