1. Lecturer, College of Civil Engineering, Nanjing Forestry Univ., Nanjing 210037, China.
2. Associate Professor, Key Laboratory of Concrete and Prestressed Concrete Structures of the Ministry of Education, Southeast Univ., Nanjing 210096, China.
3. Professor, Key Laboratory of Concrete and Prestressed Concrete Structures of the Ministry of Education, Southeast Univ., Nanjing 210096, China (corresponding author).
4. Professor, College of Civil Engineering, Nanjing Forestry Univ., Nanjing 210037, China.