1. Lecturer, Dept. of Mechanical and Aerospace Engineering, Univ. of Strathclyde, Glasgow SC015263, UK.
2. Professor, School of Civil Engineering, Chongqing Univ., Chongqing 400045, China (corresponding author).
3. Chair Professor, Director, School of Civil Engineering, Chongqing Univ., Chongqing 400045, China.