1. Assistant Professor, Dept. of Civil Engineering, Hohai Univ., No. 1 Xikang Road, Nanjing, Jiangsu, 210098. China (corresponding author).
2. Postgraduate, Dept. of Civil Engineering, Hohai Univ., No. 1 Xikang Road, Nanjing, Jiangsu, 210098. China.
3. Assistant Professor, Dept. of Bridge Engineering, Chang’an Univ., Middle of Nan Erhuan Road, Xi’an, Shanxi, 710064. China.
4. Professor, Dept. of Bridge Engineering, Chang’an Univ., Middle of Nan Erhuan Road, Xi’an, Shanxi, 710064. China.