1. Associate Professor, Dept. of Civil Engineering, Jiangsu Univ., Zhenjiang, Jiangsu 212013, P.R.China (corresponding author).
2. M.D. Candidate, Faculty of Civil Engineering and Mechanics, Jiangsu Univ., Zhenjiang, Jiangsu 212013, P.R.China.
3. Lecturer, Dept. of Civil Engineering, Jiangsu Univ., Zhenjiang, Jiangsu 212013, P.R.China.
4. Professor, Dept. of Civil Engineering, Jiangsu Univ., Zhenjiang, Jiangsu 212013, P.R.China.