In the IDEA StatiCa Connection application, the concrete block is simplified as 2D contact elements. The contact between the concrete and the baseplate works only in compression and the compressive force is transferred via the Winkler-Pasternak subsoil model.
A concrete block can be set up with an anchor grid with empty rows or positions of anchors.
Or you can set the simple Contact option.
This update has been available since the 21.1.4 patch.
Implemented in Expert and Enhanced edition of IDEA StatiCa Steel.