1. Ph.D. Candidate, Dept. of Civil Engineering, Southeast Univ., Nanjing 210096, China.
2. Professor, Key Laboratory of Concrete and Prestressed Concrete Structures of Ministry of Education, Southeast Univ., Nanjing 210096, China (corresponding author).
3. Master of Philosophy Candidate, Dept. of Civil Engineering, Southeast Univ., Nanjing 210096, China.
4. Professor, Dept. of Civil and Environmental Engineering, Hong Kong Univ. of Science and Technology, Hong Kong, China.