1. State Key Laboratory of Mechanical Behavior in Traffic Engineering Structure and System Safety, Shijiazhuang Tiedao University, Shijiazhuang 050043, Hebei, China
2. Key Laboratory of Traffic Safety and Control of Hebei Province, Shijiazhuang Tiedao University, Shijiazhuang 050043, Hebei, China
3. School of Civil Engineering, Shijiazhuang Tiedao University, Shijiazhuang 050043, Hebei, China