In the search for an effective cross-section of a ceiling slab, designers use composite concrete ceilings on a sheet with a corrugated or trapezoidal profile. Thanks to the combination of concrete and steel, the ceilings combine the advantages of these materials in the most effective way. These ceilings meet the conditions related to fire resistance and constitute an appropriate sound barrier between rooms. They enable the transfer of not only static loads, but also loads with dynamic characteristics. These ceilings are characterized by a perfectly low parameter of the number of structures in relation to its surface (the equivalent of hollow tile floors).

Different types of cross-sections

Hybrid beam for composite floor slabs on a trapezoidal sheet with the same floor slab height

Hybrid beam for composite floor slabs on a trapezoidal sheet with a lower height than the floor slab

1 – hybrid beam
2 – trapezoidal sheet
3 – reinforcement connecting the beam and the ceiling built at the construction site
4 – head bolts connecting the sheet with the lower flange of the beam
5 – reinforcement embedded in the beam joining with concrete
6 – trapezoidal seal for shuttering openings in trapezoidal sheets