1. Professor, Dept. of Construction Management, College of Management and Economics, Tianjin Univ., 92 Weijin Rd., Tianjin 300072, China.
2. Postgraduate, Dept. of Construction Management, College of Management and Economics, Tianjin Univ., 92 Weijin Rd., Tianjin 300072, China (corresponding author).
3. Senior Lecturer, School of Civil Engineering and Built Environment, Queensland Univ. of Technology, 2 George St., Brisbane 4001, Australia.
4. Associate Professor, School of Civil Engineering and Built Environment, Queensland Univ. of Technology, 2 George St., Brisbane 4001, Australia.