CURVED THIN-WALLED METAL PROFILE Russian patent published in 2022 - IPC E04C3/07 

FIELD: building.

SUBSTANCE: invention relates to the field of building, in particular, to a curved metal profile. Curved thin-walled metal profile comprises a side wall, coupled on both sides thereof, at an angle of 90°, with parallel shelves of equal width, and with a trapezoidal recess into the profile in the central part of the wall along the longitudinal axis of symmetry, formed by symmetrical inclined walls coupled with the base parallel to the side wall, wherein the trapezoidal recess is made with a height equal to the width of the shelf, and in the base of the recess, with a width equal to 0.25-0.35 of the height of the profile; a grooved corrugation with a width equal to 0.28-0.48 of the width of the base and a curvature described by a radius with a centre located in the longitudinal plane of symmetry of the profile equal to 0.14-0.52 of the width of the base is made along the longitudinal axis of symmetry into the recess.

EFFECT: increase in the bearing capacity of the profile.

2 cl, 6 dwg