Element slab
The element slab is a precast concrete slab with a statically supporting insitu concrete layer according to DIN 1045, chapter 19.7.6. The 4 to 6 cm thick, prefabricated concrete element contains a reinforcement in form of a braced girder which is necessary for the assembly rigidity as well as the bending tensile reinforcement lengthwise and crosswise which is necessary for the assembly and the final state. All later cutouts, slab cutouts, electrical boxes, drip noses, biases, mounting parts etc. are considered. The prefabricated slab element serves as formwork during the construction phase and is, after depositing and hardening the in-situ concrete, jointly carrying as bulk cross section. The prefabricated element contains, in form of the braced girders, the compound and pushing reinforcement which is necessary for the final state.
In the final state, after hardening the in-situ concrete, the prefabricated slab with a statistically supporting in-situ concrete layer is like a monolithically fabricated reinforced concrete slab. The statistically and constructively countable interaction of the precast element and the in-situ concrete is guaranteed by the specifically roughened surface during the element production, which guarantees an optimal adhesion between element and concrete layer. The inserted compound and pushing reinforcement in form of braced girders ensures the interaction. By the CAD/CAM design of this system all statistically required reinforcements and constructive details are executed according to the norms and registrations. Therefore all different kind of plans and weight loads are economically possible by a specific prefabrication.
In the final state there are, from the technical point of view, no differences to the monolithically fabricated slab. By the equality of the precast slab with statistically supporting in-situ concrete layer and the in-situ concrete slab the requirements for
- Fire signalling
- Thermic protection
- Sound proofing
are identical. The valid regulations are applicable on element slabs without any difference.
(source: Syspro)
|
