Reinforcement body for a floor slab

Claim 1

Reinforcement body for a cast concrete floor slab provided with stiffening ribs, comprising a plurality of elongated foundation reinforcements (1); a plurality of elongated distribution reinforcements (2) positioned essentially parallel to and spaced from the foundation reinforcements, at least one of said reinforcements defining a floor plane; straight spacer wires (7) welded to the foundation reinforcements (1) and the distribution reinforcements (2), for connecting the foundation reinforcements and the distribution reinforcements at predetermined distances, said spacer wires (7) being positioned at an angle with respect to the floor plane to provide shear resistance; a plurality of displacement element blocks (8) arranged between said reinforcements and being penetrated by said spacer wires (7), said displacement element blocks (8) being spaced from each other along the length of the reinforcements, the spacing between adjacent displacement element blocks (8) defining rib cavities (9), said rib cavities (9) having a predetermined directional course in said reinforcement body and a predetermined width, in accordance with static requirements of said slab; said displacement element blocks (8), when in position between the foundation reinforcements (1) and the distribution reinforcements (2), being rigidly coupled to the spacer wires (7a); the foundation reinforcements (1), the distribution reinforcements, said spacer wires (7) and the displacement body blocks (8) forming a dimensionally stable unit; and reinforcement elements located in said cavities; said reinforcement elements comprising lattice girders (11), placed in the rib cavities between said displacement element blocks (8) and securely connected to at least one of said foundation reinforcements (1) and said distribution reinforcements (2), and extending between said foundation reinforcements (1) and said distribution reinforcements (2), said lattice girders (11) comprise an upper rib (12), a lower rib (13), and infill wires (14) connecting said upper rib and said lower rib, whereby, upon casting of concrete into said rib cavities (9), said concrete in the rib cavities will be reinforced by said lattice girders (11) and thereby securely connected to said at least one of the foundation reinforcements and distribution reinforcements.