The present work consisted of the evaluation of the indicators of seismic behavior: over strength and ductility for reinforced concrete buildings moments frames with the static non - linear method using a structural software. For this, 3, 6, 9, 12, 15 and 18-story buildings have been evaluated. The results of this research showed that as the fundamental period of a structure increases, over strength also increases, but a clear trend can not be given. In the case of ductility there is a clear polynomial tendency for each axis of the building: as the fundamental period increases the ductility decreases. On the other hand, the actual capacity of the structure is superior to the design shear shown in Standars of E-030.