1. Ph.D. Candidate, Key Laboratory of C&PC Structures of the Ministry of Education, Southeast Univ., Nanjing 210096, China.
2. Professor, Key Laboratory of C&PC Structures of the Ministry of Education, Southeast Univ., Nanjing 210096, China (corresponding author).
3. Professor, School of Mechanical Engineering, Purdue Univ., West Lafayette, IN 47907.