Answer:
In principle, a support with the defined spring stiffness acts like a hinged column. To better illustrate the situation, use the "Spring" member type (see Image 01), which has the same effect within the program as a support with the defined spring stiffness.
In this case, Model A (Image 02) is an inclined hinged column, which ideally only absorbs axial forces.
In Model B (Image 03), the inclined hinged column is divided into two components so that an asymmetric frame is created.
Since the surface of both models is horizontally (globally) displaceable, a deflection occurs that has a higher deformation in the case of the hinged column in Model A than in the case of the asymmetric, stabilizing frame in Model B.
Therefore, the same deformations can only occur in both models if the surface is loaded perpendicular to its plane; that is, without lateral deflection (see Image 04).
