Patent ID: 6845591
Filing Date: 2005-01-25
Classification: E04B

Abstract:
1. A hollow-core floor slab designed to withstand predetermined maximum transverse forces and having a first supporting edge and a second supporting edge located substantially opposite thereto in a longitudinal direction of the slab, to enable a supported floor field to be formed, said hollow-core floor slab comprising a concrete upper flange and a concrete lower flange connected therewith by concrete vertical webs, while in the lower flange, from the first supporting edge to the second supporting edge, a longitudinal reinforcement wholly surrounded by concrete is provided, the lower flange having a thickness larger than a thickness of the upper flange and being dimensioned such that said lower flange withstands and transmits said predetermined maximum transverse forces to said supporting edges, and, starting from the upper flange, at least one slot being recessed, which in a vertical direction extends maximally as far as the lower flange, said at least one slot extending at an angle with respect to the longitudinal reinforcement.