抄録
In this paper, a graphical method is proposed to get optimum energy absorbing capacity of RC structures with the frames of various ductility groups. Analytical evaluation method of the seismic capacity is based on the Seismic Diagnostic Standard by JBDPA which is used widely. The concept of ductility characteristics factor F' related to the total sum of lateral strengthes of frames is introduced to make the graphical method ease. For the method, q × F chart where q is strength ratio and F is ductility index is devised. The proposed method has been successfully used in the field of seismic diagnosis and strengthening of many buildings.
