Lattice girders have two main purposes:
on the one hand they secure the bond between the prefabricated slab and the cast-in-situ concrete and on the other hand they ensure the load-bearing capacity and serviceability of the prefabricated slab in the installed condition.
In addition, lattice girders can be used, for instance, as spacers for the upper made to measure mesh. Lattice girders are made of straight bars or bent stirrups.
They are used as spacers between mesh or floor and wall elements and have load-bearing properties.