1. Professor, College of Civil Engineering, Zhejiang Univ. of Technology, Hangzhou 310023, PR China (corresponding author).
2. Graduate Student, College of Civil Engineering and Architecture, Zhejiang Univ., Hangzhou 310027, PR China.
3. Professor, Dept. of Civil, Construction, and Environmental Engineering, Iowa State Univ., Ames, IA 50010. ORCID: .