1. Department of Bridge Engineering, Southwest Jiaotong University, Chengdu, China; MOE Key Laboratory of High-Speed Railway Engineering, Southwest Jiaotong University, Chengdu, China (corresponding author: )
2. Department of Bridge Engineering, Southwest Jiaotong University, Chengdu, China
3. Department of Bridge Engineering, Southwest Jiaotong University, Chengdu, China (co-corresponding author: )