A compound beam (see figure) has an internal moment release just to the left of B and a shear release just to the right of C. Reactions have been computed at A, C, and D and are shown in the figure....

A compound beam (see figure) has an internal moment release just to the left of B and a shear release just to the right of C. Reactions have been computed at A, C, and D and are shown in the figure.

First, confirm the reaction expressions using statics; then plot shear (V) and moment (M) diagrams. Label all critical V and M values and also the distance to points where either V and/or M are zero.