Problem $1(100$ pts$)$

For the compound beam and loading shown and considering that the supports at A and $C$ are rollers and the connections at $B$ and $E$ are pins:

Determine the support reactions and the internal forces at connection B$.(40$pts$)$

Draw the shear and moment diagrams including maximum and minimum values and the shear force and bending moment values at points $A,B,C,E$ and F$.(60$pts$)$