1. Associate Professor, School of Civil Engineering, Key Laboratory of Concrete and Prestressed Concrete Structures of Ministry of Education, Southeast Univ., Nanjing 210096, China; presently, Visiting Associate Professor, State Key Laboratory of Subtropical Building Science, South China Univ. of Technology, Guangzhou 510500, China (corresponding author).
2. Professor, School of Civil Engineering, Key Laboratory of Concrete and Prestressed Concrete Structures of Ministry of Education, Southeast Univ., Nanjing 210096, China.
3. Assistant Professor, Dept. of Civil Engineering, Univ. of Texas, El Paso, TX 79902.
4. Master Student, Department of Civil Engineering, School of Civil Engineering, Key Laboratory of Concrete and Prestressed Concrete Structures of Ministry of Education, Southeast Univ., Nanjing 210096, China.