EN 12953-3 Flat plates

[giezu]

Hi,
In chaper 10.2.4 equation 10.2-2 we are calculating the wall thickness of flat plate.
What about weld factor v. This is not included in this equation nad why (in my situation flat plate is welded form two plates)?.
If for exapmle I have weld factor v=0,85 shall I divided ech/sqrt(v)??

Best regards
Pawel

 

[giezu]

Nobody is calculating according this standard?