'SK UR axial & bending' approximates the SK vertical force due to bending (max bending along GC used). The F_V1Shk,d,mom is then added to F_V1Shk,d,ax (see DNV-ST-0126)
F_V1Shk,d,mom = (M_res · h_Shk) / (W_JL · n)
where W_JL is the section modulus of the jacket leg.
This should be checked in FEA if Pnom >= 1.5MPa.