09-23-2010, 08:15 AM
The capable shear force (you can take into account the stirrups or you can refer only to the concrete shear capacity) is computed using the code formula for shear. The software will give you the shear force at each step of the loading at a certain node. So you can compare the two values. If the shear force from the analysis is larger, you know you have a shear failure of that element.