Two beams $($ABCD and DE$)$ are connected using a pin at Point D$.$ The pin acts as a moment release,

i$.$e$.$ no moments are transferred through this pinned connection. Shear forces can be transferred

through the pinned connection at point D$.$ Beam ABCD has a pinned support at point A and a roller

support at Point C$.$ Beam DE has a roller support at Point E$.$ A concentrated load, P$,$ is applied to the

mid span of beam DE$,$ as shown below. Another concentrated load, $2$P$,$ is applied to Point G$.$ The

bracket BFG can be considered rigid.

a$)$ construct the bending moment and shear force diagrams