Is there any posibility to import solids to Sofistik?
(my aim is to export a solid from allplan to sofistik - in my opinion its not possible through IFC or SAF)
As far as I know not. You can use Sofimsha where you define any internal point in volume which is defined by structural areas and the software creates bric elements.
example:
+prog SOFiMSHA urs:28.2
head
syst rest
grp 51
bric prop mno 1
umsh type tet prog 5
ubnd type out sel coor x 37.28 y -9.84 z -1.76
end