In usually used monolithic structures, only a hinge connection can be called a prefabricated connection, so the first type is nothing from the usual structures of foundations. Structures — simplified articulated joints; Here, concrete takes on all horizontal power. To be able to rotate the rack, the seams between the column and the foundation are poured with rather elastic material: abscal or asphalt concrete. Thus, the recess is occupied by the material and there is no place to penetrate moisture, which is very important to protect concrete from destruction.
