1. Key Laboratory of High‐Speed Railway Engineering, Ministry of Education Southwest Jiaotong University Chengdu China
2. School of Civil Engineering Southwest Jiaotong University Chengdu China
3. Department of Civil and Environmental Engineering University of Maryland College Park MD USA
4. School of Electrical Engineering Southwest Jiaotong University Chengdu China
5. Industrial and Systems Engineering and Civil, Structural and Environment Engineering University at Buffalo, the State University of New York Buffalo NY USA