Create a shear diagram using the superposition method for each load. This is the problem: A cantilever reinforced concrete beam belongs to a structure located in a high seismic risk zone. The beam measures $12$ feet in length from the face of the support, with a width of $18$ inches and an overall depth of $30$ inches. It features $4$ #$9$ bars at the top and $2$ #$9$ bars at the bottom. The stirrups are arranged as follows: the first is located two inches from the face of the support, followed by $9$ #$3$@$4",4$ #$3$@$8",$ and $6$ #$3$@$12".$ The beam supports a uniformly distributed design load of $5$ k$/$ft and four concentrated design loads separated by three feet each, of $10$k$,10$k$,5$k$,$ and $5$k$,$ with the last one positioned at the free end of the cantilever. Draw the design shear diagram and the shear capacity diagram. Determine whether the current distribution of hoops meets the requirements according to ACI $318.$