Bending elements capacity:
xa = $xa$; xb = $xb$.
Axial force: N = $1.3$ kN.
Profile surface area: A = $4.1$ cm2.(*Oslab
Holes surface area: Ao= $4.2$ cm2.
Reduced surface area: Ay = $4.3$ cm2.*)
Stretching profile capacity: NRt= A(*Oslab y*) fd = $4.3$×$0.6$×10-1 = $4.5$ kN.
Capacity condiition (*Oslab (32)*|*(31)*):
N = $W31$ = NRt
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