1. School of Civil Engineering, Central South University, Changsha, China
2. National Engineering Laboratory for High Speed Railway Construction, Changsha, China
3. Joint International Research Laboratory of Key Technology for Rail Traffic Safety, Changsha, China
4. National & Local Joint Engineering Research Center of Safety Technology for Rail Vehicle, Changsha, China
5. Department of Civil, Structural and Environmental Engineering, University at Buffalo—The State University of New York, Buffalo, USA