1. State Key Laboratory of Mechanical Behavior and System Safety of Traffic Engineering Structures, Shijiazhuang Tiedao Univ., Shijiazhuang 050043, China; School of Civil Engineering, Shijiazhuang Tiedao Univ., Shijiazhuang 050043, China; Key Laboratory of Roads and Railway Engineering Safety Control of Ministry of Education, Shijiazhuang Tiedao Univ., Shijiazhuang 050043, China.
2. School of Civil Engineering, Shijiazhuang Tiedao Univ., Shijiazhuang 050043, China.
3. Dept. of Civil and Environmental Engineering, Ruhr-Universität Bochum, Universitätsstraße 150, D-44780 Bochum, Germany (corresponding author). ORCID: .