A WT$205\backslash$times $30$ structural steel section $($see Appendix B for cross$-$sectional properties$)$ is used for a $7\mathrm{.}2m$ column. Assume pinned connections at each end of the column. Determine:

$($a$)$ the slenderness ratio.

$($b$)$ the Euler buckling load. Use $E=200$GPa for the steel.

$($c$)$ the axial stress in the column when the Euler load is applied.

Part $1$

Use Appendix B to look up the cross$-$sectional area, the area moment of inertia, and the radius of gyration for a WT$20530$ structural steel section.

Answer:

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Part $2$

The parts of this question must be completed in order. This part will be available when you complete the part above.

Part $3$