1. Professor, School of Civil Engineering, Lanzhou Univ. of Technology, Lanzhou Shi, Gansu Sheng 730000, China (corresponding author).
2. Research Associate, School of Civil Engineering, Lanzhou Univ. of Technology, Lanzhou Shi, Gansu Sheng 730000, China.
3. Professor, Key Laboratory of Urban Security and Disaster Engineering of Education, Beijing Univ. of Technology, Beijing 100124, China.