1. Lecturer, National Prestress Engineering Research Center, School of Civil Engineering, Southeast Univ., Nanjing 210096, China.
2. Professor, Key Laboratory of Concrete and Prestressed Concrete Structures of Ministry of Education, and National Prestress Engineering Research Center, Southeast Univ., Nanjing 210096, China (corresponding author).
3. Graduate Student, School of Civil Engineering, Southeast Univ., Nanjing 210096, China.