FORMWORK ELEMENT OF STEEL-CONCRETE COMPOSITE SLABS Russian patent published in 2018 - IPC E04G9/06 

FIELD: construction.

SUBSTANCE: invention relates to the field of construction and can be used in the construction of residential, industrial and public buildings, including the construction of monolithic steel-and-steel building structures: in particular, overlappings and coatings. Formwork of the composite reinforced concrete floors comprises an outer surface and a working surface and is made in the form of a profile having in the cross-section a view of an open trapezoid comprising a small base-shelf on the plane of which protrusions are formed, and a larger base made with flanges, as well as a caisson and longitudinal grooves of stiffness. Caisson is limited by a small base-shelf and lateral surfaces of the trapezoid, the open trapezium of the profile in the section is asymmetrical, the larger base of which has various sides – short and long, larger base being made unclosed and consisting of flanges and directly to the plane of the small base flange that is connected to one of the flanges of the larger base and forms with it a long side of the larger base of the profile, and the other flange forms a short side of the larger base of the profile, longitudinal grooves of stiffness are made on the small base-flange and flanges, and lateral stiffeners are made on the side surfaces of the open trapezium of the profile and on the surface of the larger base, form element being provided with additional stiffening elements made in the form of trapezium plates, one of which is configured to be installed at a design pitch in the caisson former, and the other – with the possibility of installation with a calculated step on the long side of the larger base.

EFFECT: technical result of using the proposed invention consists in simplifying the design of the formwork element by simplifying the configuration of the profile, which allows building monolithic constructions of buildings, in particular, steel reinforced concrete ceilings and coatings, and significantly reduce transportation costs.

3 cl, 3 dwg