1. Professor, Key Laboratory of Concrete and Prestressed Concrete Structures of the Ministry of Education, Southeast Univ., Nanjing 210096, P.R. China (corresponding author).
2. Postgraduate Researcher, School of Civil Engineering, Southeast Univ., Nanjing 210096, P.R. China.
3. Professorate Senior Engineer, Jiangsu Transportation Institute Co. Ltd., 2200 Chengxin Ave., Nanjing 211112, P.R. China.