1. Professor, Key Laboratory of Concrete and Prestressed Concrete Structure, Ministry of Education, Southeast Univ., Nanjing 210096, P. R. China (corresponding author).
2. Ph.D. Candidate, School of Civil Engineering, Southeast Univ., Nanjing 210096, P. R. China.
3. Bridge Chief Engineer, Jiangsu Transport Planning & Design Institute Ltd., Ziyun Avenue No. 9, Nanjing 210014, P.R. China.