[1] Southwest Petr Univ, Sch Civil Engn & Architecture, Chengdu 610500, Sichuan, Peoples R China
[2] Tanta Univ, Fac Engn, Dept Struct Engn, Tanta, Egypt
[3] Univ Western Australia, Fac Engn Comp & Math, Sch Civil Environm & Min Engn, Nedlands, WA, Australia