[1] Ningxia Univ, Sch Civil & Hydraul Engn, Yinchuan 750021, Peoples R China
[2] Ningxia Ctr Res Earthquake Protect & Disaster Miti, Yinchuan 750021, Peoples R China
[3] Hezhou Univ, Sch Architecture & Elect Engn, Hezhou 542899, Peoples R China
[4] Ningxia Senmiao New Mat Co Ltd, Yinchuan 750200, Peoples R China