1. Professor, Dept. of Construction Management, College of Management and Economics, Tianjin Univ., 92 Weijin Rd., Tianjin 300072, China.
2. Ph.D. Candidate, Dept. of Construction Management, College of Management and Economics, Tianjin Univ., 92 Weijin Rd., Tianjin 300072, China (corresponding author).
3. Professor, School of Civil Engineering and Built Environment, Queensland Univ. of Technology, Gardens Point, Brisbane, QLD Q4001, Australia; Visiting Professor, Faculty of Computing, Engineering and the Built Environment, Birmingham City Univ., Birmingham, UK.
4. Professor, Dept. of Construction Management, College of Management, Tianjin Univ. of Technology, 391 Bingshui West Road, Tianjin 300384, Tianjin, China.