Consider the multi$-$span beam structure shown in Figure $1.$

Figure $1$: Front elevation view of multi$-$span beam structure.

The cantilever is fully$-$fixed to the wall at Point A$.$ Points B$,$ D and E are hinges. Horizontal point loads $3$P $(kN)$ and $P(kN)$ are applied as shown in Figure $1.$

$[1$a$]$ Compute the degree of indeterminacy for the beam structure.

$[1$b$]$ Compute the vertical reaction forces at nodes F and G $.$

$[1$c$]$ Compute the total force at hinge B$.$

$[1$d$]$ Draw and label diagrams showing how the bending moment and axial force vary along the beam, nodes A through H$.$ Clearly indicate on your bending moment diagram, regions that are in tension$/$compression$.$ Explain in detail