1. Ph.D. Candidate, Key Laboratory of Concrete and Prestressed Concrete Structure of China Ministry of Education, Southeast Univ., Nanjing 218911, China.
2. Professor, Key Laboratory of Concrete and Prestressed Concrete Structure of China Ministry of Education, Southeast Univ., Nanjing 218911, China (corresponding author).
3. Associate Professor, Key Laboratory of Concrete and Prestressed Concrete Structure of China Ministry of Education, Southeast Univ., Nanjing 218911, China.
4. Professor, Key Laboratory of Ministry of Education for Geomechanics and Embankment Engineering, Hohai Univ., Nanjing 210098, China.
5. Associate Professor, Dept. of Civil and Environmental Engineering, Univ. of California, Los Angeles, CA 90095.