Assess an axially loaded element $($ span $1\mathrm{.}8$m$,150$ x $150$mm$,$ provided with $4$ main bars of diameter $12$ mm and stirrups $8$mm diameter at $150$mm c$/$c$),$ using first EC$2$ and then the Compressive Force Path $($CFP$)$ method. Assume cover is $30$mm and there is no axial force. Make assumptions, where necessary.

Vary the level of axial loading and see how it affects the flexural capacity of your member.

Provide a diagram showing the variation of flexural capacity with axial loading.