School of Architectural Engineering Chongqing University of Arts and Sciences Chongqing 402160 China;
Institute of Civil Engineering Disaster Prevention and Reduction Chongqing University of Arts and Sciences Chongqing 402160 China;
School of Architectural Engineering Chongqing University of Arts and Sciences Chongqing 402160 China;
School of Architectural Engineering Chongqing University of Arts and Sciences Chongqing 402160 China;
School of Architectural Engineering Chongqing University of Arts and Sciences Chongqing 402160 China;
School of Civil Engineering Chongqing University Chongqing 400045 China;
Double angle; combined section; experimental; finite element analysis;