1. Ph.D., Aff.M.ASCE, Hohai Univ., Nanjing, Jiangsu 210098, CN. (Present address: Xikang Rd., No. 1, Nanjing 210098 Jiangsu, People’s Republic of China.) (Corresponding author), e-mail: gqkong1@163.com
2. Ph.D. Candidate, Hohai Univ., Nanjing, Jiangsu 210098, CN.
3. Graduate Student, Hohai Univ., Nanjing, Jiangsu 210098, CN.