Question $2$

Use the section UKB $20313330($S$275)$ as a column with different heights $($non$-$sway, pin$-$pin

support condition$)$ to plot two buckling curves using equation $(6\mathrm{.}49)$ in EC$3,1-1.$ One curve is for

buckling about the minor axis $(z)$ and the other curve is for buckling about the major axis $(y).$

Students are recommended to use EXCEL or MATLAB to plot the curves. Provide appropriate title,

$x$ and $y$ axis labels, and legends in the figure.

For buckling about the minor axis, students can use column heights from $200mm$ to $8000mm$ with

spacing $200mm.$ For buckling about the major axis, students can use column heights from $500mm$ to

$22000mm$ with spacing $500mm.$