FLOOR SLAB Russian patent published in 2022 - IPC E04B1/06 

FIELD: building structures.

SUBSTANCE: invention relates to building structures, namely to floor slabs and coatings of mainly civil buildings. The floor slab contains a thin-walled steel fiber concrete element in the form of a cylindrical, parabolic or spherical shell and longitudinal ribs, while the thin-walled steel fiber concrete element is reinforced with steel fibers distributed according to stress fields, with a length of steel fibers not less than 1.25 of the thickness of the cross-section of the thin-walled steel fiber reinforced concrete shell element, in the tensioned zone and with the length of the steel fibers, less than the thickness of the cross-section of the shell of the thin-walled steel fiber concrete element, in the compressed zone. Thin-walled steel-fiber-concrete elements are combined into a multi-wave shell with longitudinal ribs and end diaphragms of stiffness made of steel-fiber concrete, the upper part of the shell is located in the compressed zone, and the lower one - in the stretched zone, with monolithic reinforcement in the longitudinal ribs. At significant loads, prestressed reinforcement in the form of reinforcing bars is located in the tensile zone of the longitudinal ribs, and the joints of the steel-fiber concrete element with the longitudinal ribs are equipped with haunches.

EFFECT: reducing material consumption and increasing the reliability of the floor slab.

4 cl, 5 dwg