RAM Structural System Help

Capacities - Eurocode

If the beam web and flanges are not in Class 1 or Class 2, the noncomposite section properties, rather than the composite section properties, with the corresponding moment capacity will be used.

The section capacity is not checked for longitudinal shear or longitudinal splitting of the slab as described in Clause 6.6.6 of Eurocode 4.

For the unusual case where the plastic resistance moment exceeds 2.5 times the plastic resistance moment of the steel member alone, Clause 6.6.1.3(4) of Eurocode 4 requires that the adequacy of the studs be checked at intermediate points approximately midway between adjacent "critical cross-sections," which in the program's case is the location of point loads and point of maximum moments; the program does not perform this additional check.

When the vertical shear, VEd, exceeds half the shear resistance, VRd, Clause 6.2.2.4(1) of Eurocode 4 requires that an allowance be made for its effect on the resistance moment. Clause 6.2.2.4(2) gives a method for considering a reduced design steel strength (1- r)fyd in the shear area, where r is given by Eq. (6.5); the program conservatively ignores the contribution of the web to the resistance moment in that case (in other words, the program conservatively uses a value of r equal to 1.0 which would be the case if VEd equaled VRd).