1. Master’s Student, Dept. of Construction Management, College of Management and Economics, Tianjin Univ., Tianjin 300072, PR China.
2. Professor, Dept. of Construction Management, College of Management and Economics, Tianjin Univ., Tianjin 300072, PR China.
3. Ph.D. Candidate, Dept. of Construction Management, College of Management and Economics, Tianjin Univ., Tianjin 300072, PR China (corresponding author).