If I increase the plate thickness for a foundation in RF-/FOUNDATION Pro, the side length changes automatically.
How can I turn this behavior off?
If the increasing of the slab thickness also results in a change of the dimensions of the side lengths, this is due to the setting that the punching cone is to lie within the foundation plate.
To control this behavior, click the [Details] button in the input windows. In the appearing "Details" dialog box, you can find the check box "The defined punching cone in the distance Iw is inside the foundation plate".
To define the geometry freely, clear this option.