Low and high shear
The shear verification affects bending and axial resistances according to EN 1993-1-1. The "low shear" is defined by the following condition:
Where is: | VSd |
|
Vpl,Rd |
|
Otherwise, "High shear" appears. If there are shear shear forces due to torsion in the cross-section, the value of resistance Vpl,T,Rd (reduced value due to torsion, described in the chapter "Shear stress due to torsion") is used instead of the resistance Vpl,Rd. The design values of the axial and bending resistances are reduced for "High shear". The reduction is based on the reduction factor for yield strength according to the following formula
Where is: | ρ |
|
fy |
|
The reduction factor ρ is given by formula
or by the expression
for shear due to torsion