RU202962U1 - SPATIAL COVERING PLATE - Google Patents

Abstract

The utility model relates to construction, in particular to the covering of buildings and structures with large spans, and can be used in industrial and agricultural construction. The technical result achieved by the utility model consists in increasing the bearing capacity of the spatial slab of the covering of a rarefied structure due to the use of bent metal pipes of rectangular cross-section in it, as well as in expanding the arsenal of large-span spatial slabs of the covering. To achieve the technical result, a spatial slab of the covering of a rarefied structure is proposed, including the upper (1) and lower (2) belts of curvilinear outline, bent in the longitudinal direction, formed from long elements (4, 5), alternating with each other in belts connected at the ends, and intermediate elements (3) in the form of transverse struts rigidly fixed between the chords. The novelty is that long-length elements (4, 5) are made of bent metal pipes of rectangular cross-section, forming the surfaces of both belts with wide walls and contacting at the junction points at the ends with short walls with holes (6) made at the contact points through which the connecting rod is passed (7). 3 ill.

Description

The utility model relates to construction, in particular to the covering of buildings and structures with large spans, and can be used in industrial and agricultural construction.

Known spatial cover plate, including the upper and lower belts of a convex curvilinear shape, made of a profiled sheet with a longitudinal arrangement of corrugations, at the ends of the plate the corrugations of the upper belt are placed in the corrugations of the lower belt and are interconnected, and between the belts there are intermediate elements made of profiled thin-sheet strips attached by shelves to the belts corrugation shelves (USSR author's certificate No. 1479584 A1, priority date 06/03/1987, publication date 05/15/1989, authors: V.P. Grigoriev and S.V. Grigoriev, RU).

The disadvantage of the known analogue is a complex and laborious manufacturing technology due to a large range of structural elements, as well as a limited scope due to the predominant use in spans of small and medium size, due to insufficient bearing capacity for a large-span slab.

The closest technical solution to the claimed design is a spatial slab of the covering of a rarefied structure, adopted as a prototype, including the upper and lower chords of curvilinear shape, bent in the longitudinal direction, and intermediate elements in the form of transverse struts rigidly fixed between the chords, while for the formation of a spatial sparse structure chords are formed of long elements in the form of bent C-shaped channels, alternating with each other in chords, connected at the ends, while located in both chords with the walls up and contacting at the joints at the ends with the outer surfaces of the shelves, and the connection is made either bolted through the holes in the shelves, or welded along the contour of the contact of the shelves (RF patent No. 2652045 C1, priority date 04/20/2017, publication date 04/24/2018, authors: Grigoriev S.V. and Grigoriev V.P., RU, prototype).

The disadvantage of the prototype is its limited use as a large-span structure due to the low bearing capacity of the spatial slab of the covering of the rarefied structure, due to the insufficient rigidity of the C-shaped channels forming it.

The technical problem solved by the utility model is the creation of a structure of a large-span spatial slab of a covering of a rarefied structure with spatial rigidity and increased bearing capacity.

To solve the technical problem, a spatial slab of the covering of a rarefied structure is proposed, including the upper and lower belts of curvilinear shape, bent in the longitudinal direction, formed from long elements alternating with each other in belts connected at the ends, and intermediate elements in the form of transverse struts rigidly fixed between belts. The novelty is that long-length elements are made of bent metal pipes of rectangular cross-section, forming the surfaces of both belts with wide walls and contacting at the joints at the ends with short walls with holes made at the contact points through which the connecting rod is passed.

Figure 1 schematically shows a spatial slab of the coating, general side view; figure 2 - node A in figure 1, isometric; figure 3 - the same, perspective view.

The inventive spatial cover plate, made of a sparse structure, contains the upper 1 and lower 2 belts of curvilinear shape, bent in the longitudinal direction, between which intermediate elements 3 are evenly spaced in the size of the span (Fig. 1). The sparse structure of chords is formed from alternating between each other in chords long elements 4, 5 of equal length and the same section within the corresponding chords, and long elements 4, 5 are made of bent metal pipes of rectangular section with a length of, for example, 12 m, in accordance with the size of the span to be overlapped (https://trubprom.com/products/catalog/esv/rect-pipes, viewed on 10/30/2020). In this case, these bent pipes 4, 5 form the surfaces of both chords with wide walls and contact at the joints at the ends of the chords with short walls (Fig. 2, Fig. 3). At the points of contact in the short walls of the pipes, holes 6 are made for the connecting rod element 7, with the help of which the bent pipes 4, 5 are connected at the ends to each other. To ensure spatial rigidity, the intermediate elements 3 between the chords 1, 2 are located in the transverse direction in the form of racks and are rigidly fastened to the chord pipes 4, 5 by means of welded joints.

Thus, the technical result achieved by the utility model consists in increasing the bearing capacity of the spatial slab of the cover of a rarefied structure due to the use of bent metal pipes of rectangular cross-section in it, as well as in expanding the arsenal of large-span spatial slabs of coverings.

Claims (1)

Spatial slab of the covering of a rarefied structure, including the upper and lower chords of a curvilinear outline, bent in the longitudinal direction, formed from long elements alternating with each other in chords, connected at the ends, and intermediate elements in the form of transverse posts rigidly fixed between the chords, characterized by the fact that that long-length elements are made of bent metal pipes of rectangular cross-section, forming the surfaces of both belts with wide walls and contacting at the joints at the ends with short walls with holes made at the contact points through which the connecting rod is passed.

Images