Problem $2[60$ points$]$

Consider the mixed truss$-$frame structure shown below and let L$=3$m and H$=3$m$.$ The vertical column has a hollow circular steel cross$-$section with outer radius $10$ cm and $0\mathrm{.}5$ cm thickness. The wires cannot carry any compression force, because they are wires. They have a circular steel cross$-$section with $1$ cm diameter. Use the same modulus of elasticity as in Problem $1.$

a