Problem $4$: In Figure $4,$ the columns in the frame are oriented so that in$-$plane bending will be about the strong axis $(x-$axis$)$ and out$-$of$-$plane bending will be about the weak axis $($y$-$axis$).$ The loads shown in Figure $4$ are factored. Assuming frame is braced in the plane direction. Use A$992$ steel and select the lightest W$12$ shape that is adequate for column A$.$ Assume $K_y=1\mathrm{.}0.$

Problem $5$: Repeat Problem $4$ but this time, assume frame is unbraced in the plane.

Problem $6$: Repeat Problem $4,$ but now consider the columns are continuously braced in the outof$-$plane direction, so column buckling can only occur in the in$-$plane direction.

$2$

CVEN $312-$ Spring $2024$

Homework $3$

Figure $4$