Answer:
The consideration of shear stiffnesses can be controlled separately for each cross-section in the "Edit Cross-Section" dialog box (see the image). When taking into account shear deformations, increase of deformations results due to shear forces.
The influence of the shear is dependent on the cross-section areas Ay and Az. These cross-section properties can be displayed in tables or cross-section entries and adjusted, if necessary.
