TY - JFULL AU - Behnam Shirkhanghah and Vahid Shahbaznejhad-Fard and Houshyar Eimani-Kalesar and Babak Pahlevan PY - 2012/10/ TI - Behavior Factor of Flat Double-Layer Space Structures T2 - International Journal of Civil and Environmental Engineering SP - 739 EP - 744 VL - 6 SN - 1307-6892 UR - https://publications.waset.org/pdf/9387 PU - World Academy of Science, Engineering and Technology NX - Open Science Index 69, 2012 N2 - Flat double-layer grid is from category of space structures that are formed from two flat layers connected together with diagonal members. Increased stiffness and better seismic resistance in relation to other space structures are advantages of flat double layer space structures. The objective of this study is assessment and calculation of Behavior factor of flat double layer space structures. With regarding that these structures are used widely but Behavior factor used to design these structures against seismic force is not determined and exact, the necessity of study is obvious. This study is theoretical. In this study we used structures with span length of 16m and 20 m. All connections are pivotal. ANSYS software is used to non-linear analysis of structures. ER -