$\backslash$table$[[$Column$,$Size, $m,$Working loads$],[,,D,$ kN$,$L$,$ kN$],[1,0\mathrm{.}40\mathrm{.}4,200,350],[2,0\mathrm{.}40\mathrm{.}4,400,300]]$

Footing: concrete strength $f_c=21$Mpa.