PROFILE OF COLD AND GREENHOUSE STRUCTURE THEREOF

摘要

Proposed high profile and cold frame, manufactured therefrom for greenhouses with polycarbonate coated intended for the cultivation of vegetables, flowers and seedlings in the spring-summer-autumn period in a useful space deficit.; Proposed profile Cold comprises a horizontal base and two lateral vertical walls, the upper edges of which along their length are bent inward profile as flange returns, and at the bottom and the side walls have ribs formed as longitudinally-oriented corrugations (gutters) the convex side of inwardly directed Profile. The cross-sectional profile formed by the outer borders close to a square shape with ensuring the symmetry of the outer contour boundaries as relatively vertical and the horizontal axes of symmetry of the cross-sectional profile. The upper edges of the side walls of the vertical profile pagnuty inwardly downwards at an angle of 20 degrees from horizontal. In addition, the profile is made with the next most optimal ratio of the basic geometrical parameters:; S / H / tzag / Sotb / Rotb / Rbst / Sgosn / Sgosv / Rvpg / Rvystg / hnvbg / hmvbg =; = 20/20 / 1.2 / 5 / 1.2 / 2.4 / 11.9 / 9.2 / 0.6 / 1.2 / 12.4 / 9.7,; where: S - profile width, H - height profile tzag - thickness galvanized steel workpiece, Sotb - width flanging, Rotb - radius flanging, Rbst - bending radius of the side wall, Sgosn - maximum width of the corrugation base Sgosv - smaller width corrugation base, Rvpg fillet radius corrugation troughs base Rvystg - rounding radius corrugation protrusion base hnvbg - highest height of the lateral corrugation hmvbg - lower lateral corrugation height.; Proposed profile and manufactured therefrom frame greenhouses have relatively low metal content and production cost.; 1 n.p.f 9 l.ill.