1. Professor, Southeast Univ., Key Laboratory of Concrete and Prestressed Concrete Structures of the Ministry of Education, Nanjing 210096, China (corresponding author).
2. Master’s Candidate, Southeast Univ., Key Laboratory of Concrete and Prestressed Concrete Structures of the Ministry of Education, Nanjing 210096, China.
3. Professor, Southeast Univ., Key Laboratory of Concrete and Prestressed Concrete Structures of the Ministry of Education, Nanjing 210096, China; and Dept. of Urban and Civil Engineering, Ibaraki Univ., Hitachi 310-8512, Japan.
4. Engineer, Southeast Univ., Key Laboratory of Concrete and Prestressed Concrete Structures of the Ministry of Education, Nanjing 210096, China.