School of Civil Engineering, Shijiazhuang Tiedao University, Shijiazhuang, Hebei 050043, China;
School of Civil Engineering, Shijiazhuang Tiedao University, Shijiazhuang, Hebei 050043, China;
School of Civil Engineering Beijing Jiaotong University, Beijing 100044, China;
School of Civil Engineering Beijing Jiaotong University, Beijing 100044, China;