FIELD: construction.
SUBSTANCE: shaped sheet comprises convex corrugations repeating along the metal sheet width and a lock for connection of sheets to each other. The lock is arranged in the form of a longitudinal slot at one side and a convex longitudinal ledge at the other side. The longitudinal edge of the corrugation at the side of the sheet slot in the section is arranged in the form of an oval ledge. The longitudinal slot of the lock entering the corrugation cavity is arranged as figurine with an additional longitudinal undercut on the upper side of the slot. The groove between the larger and smaller corrugations at the other side of the sheet is arranged with a radius smaller than the radius of the oval ledge of corrugations at the side of the longitudinal slot. The edge of the sheet at the side of the smaller corrugation is arranged at the angle "α" to the sheet base.
EFFECT: invention makes it possible to increase manufacturability and reliability of a structure during assembly and in process of its operation.
5 cl, 4 dwg
