1. Associate Professor, College of Civil and Transportation Engineering, Hohai Univ., Nanjing 210098, PR China; Dept. of Civil and Environmental Engineering, National Univ. of Singapore, Singapore 117576 (corresponding author). ORCID: .
2. Master Student, College of Civil and Transportation Engineering, Hohai Univ., Nanjing 210098, PR China.
3. Ph.D. Student, Dept. of Civil and Environmental Engineering, Univ. of California, Berkeley, CA 94706.