RU213660U1 - Prefabricated building frame - Google Patents

Abstract

The utility model relates to the construction of prefabricated buildings and structures for various purposes, suitable for various household, industrial and storage needs, as well as for use for sports, entertainment purposes and other needs. The frame of the prefabricated structure contains a spatial grid of trusses and longitudinal tie beams connecting the trusses with the formation of spans between them. Each of the trusses consists of a lower chord, an upper chord and a diagonal grid installed between the lower and upper chords. The trusses are made with a variable section between the lower and upper chords with a narrowing at the base, with an expansion in the places of bending and with a narrowing in the upper part, while the connection of the lower and upper chords in the upper part of the trusses is made at an angle to each other to form a ridge knot. The technical result achieved in the implementation of the proposed utility model is to reduce the metal consumption of the structure while maintaining its strength and reliability. 6 w.p. f-ly, 3 ill.

Description

The utility model relates to the construction of prefabricated buildings and structures for various purposes, suitable for various household, industrial and storage needs, as well as for use for sports, entertainment purposes and other needs.

Known quick frame-tent design (RF patent for utility model No. 77883, publication date 10.11.2008, IPC E04B 1/342). The structure contains a frame consisting of a base rectangular in plan, semicircular trusses interconnected by a crate, and wind posts - two for each end of the structure, and a PVC awning, while guides are fixed between the wind posts, made with the possibility of installing sliding door wings, characterized in that each truss consists of three parts: a middle one and two lateral parts, made in the form of support posts and a part of the roof, moreover, the crate is made with the possibility of attaching to the truss using an L-shaped corner joint on the crate and a loop connecting element of the truss, and the supporting the racks are connected diagonally by stiffeners.

The disadvantages of this frame design include the complexity of the design and its reduced reliability.

Known frame steel tent structures (RF patent for the invention No. 2542060, publication date 20.02.2015, IPC E04B 1/343). The frame consists of sections, the assembly of which is carried out in a complete structure. Each section contains at least two arches. The first section is attached to one longitudinal side of the foundation by hinged fastening of the bases of each arch on the supporting heels, after which, on each of the load-bearing elements of the arch bases, the load-bearing elements of arcuate and straight spans ending with the second base are fixed in a given order. At the same time, the spans of each section of the arches are connected sequentially at a height accessible to the assembler, each time lifting the assembled structural elements to the required height due to the hinged connection of the bases of the section with the heels of the foundation, after which the arches and sections of the frame of the steel tent structure are connected to each other using transverse beams.

The disadvantage of this design is the increased consumption of metal, the complexity of the design.

The objective of this utility model is to develop a frame of a prefabricated structure, the design of which eliminates the above disadvantages.

The technical result achieved in the implementation of the proposed utility model is to reduce the metal consumption of the structure while maintaining its strength and reliability.

This technical result is achieved in the proposed frame of a prefabricated structure, containing a spatial grid of trusses and longitudinal tie beams connecting the trusses with the formation of spans between them, and each of the trusses consists of a lower chord, an upper chord and a diagonal grid installed between the lower and upper chords, according to the utility model, the trusses are made with a variable section between the lower and upper chords, with a narrowing at the base, with an expansion at the bends and with a narrowing in the upper part, while the connection of the lower and upper chords in the upper part of the trusses is made at an angle to each other with the formation ridge knot.

In the preferred embodiment of the device, the width of the spans is equal to the width of the frame, and the height in the ridge assembly is half the width of the truss.

In other preferred embodiments of the utility model, the lower and upper chords, as well as the diagonal grating, are made of a bent profile tube of square section. The spacing of the spans is 2 or 3 m. The longitudinal tie beams are made of a profiled tube of square section with a pitch of 0.6 m from the base to the ridge assembly.

The essence of the proposed utility model is illustrated by drawings, where

in fig. 1 shows a general view of the frame,

in fig. 2 - a schematic representation of the farm,

in fig. 3 - schematic representation of a semi-farm.

The frame of a prefabricated structure is a spatial grid consisting of trusses 1 (Fig. 1) and longitudinal tie beams 2. Trusses 1 are located at some distance from each other, forming spans 3. Each truss consists of a lower belt 4 (Fig. 2, Fig. . 3), upper chord 5 and diagonal grid 6 installed between the lower and upper chords.

Trusses are made with a variable section between the lower and upper chords (Fig. 2), with a narrowing at the base 7, with an expansion at the bends 8 and with a narrowing in the upper part 9. The connection of the lower 4 and upper 5 chords in the upper part of 9 trusses is made under angle to each other to form a ridge knot 10.

The proposed structure of the frame with a variable section of trusses and the formation of a ridge knot in its upper part forms the shape of a gable dome. This form leads to metal savings due to the narrowing of the truss at the base and in its upper part, and the formation of a ridge knot in the upper part of the truss, which acts as a reinforcing longitudinal beam, because. due to this, the profile pipe for the diagonal grating is saved, and additional reinforcing longitudinal beams in the upper part of the frame are excluded.

For the construction of arched hangars with a frame according to this design, the standard height in the ridge assembly is the following size options: 9, 12, 15, 18, 20, 22, 24 m. The span spacing, depending on the climatic region, is 2 or 3 m. it is provided with longitudinal braced beams, located in increments of 0.6 m from the base of the trusses to the ridge knot.

The upper and lower chords can be a composite section of a bent profile pipe of a square section of 30 × 30 mm with a wall thickness of 2 mm, made according to GOST 54157-2010 from steel corresponding to the climatic zone of the installation region of the structure. Longitudinal tie-beams are made of a profile pipe 40×20×2 mm. The diagonal grating is made of a bent profile tube with a square section of 30 × 30 mm.

The cross section of the pipe along the contour of the farm may vary depending on the climatic region. The profile pipes of the upper and lower chords are bent along the radius: two along the lower chord, two along the upper chord. The ridge knot is made of galvanized steel and fixed with roofing screws and rivets.

The frame of a prefabricated building can be assembled in two ways:

1) using welded joints;

2) using bolted connections.

The choice of the frame assembly method depends on the type of structure, its operational characteristics, as well as on the climatic features of the assembly area (snow, wind, etc.).

The double-slope dome shape of the frame also eliminates the accumulation of snow masses on the roof of the structure, which does not require additional strengthening of the upper part from the collapse of the structure, which means that the metal consumption decreases while maintaining the strength and reliability of the structure as a whole. In addition, this design of the frame of a prefabricated structure, in contrast to semicircular arched structures, leads to the preservation of the usable area of the building due to the small angle of inclination of the side parts of the trusses, which is close in functionality to straight-wall structures of structures.

Claims (7)

1. The frame of a prefabricated structure, containing a spatial grid of trusses and longitudinal tie beams connecting the trusses with the formation of spans between them, and each of the trusses consists of a lower chord, an upper chord and a diagonal grid installed between the lower and upper chords, characterized in that the trusses are made with a variable section between the lower and upper chords, with a narrowing at the base, with an expansion in the places of bending and with a narrowing in the upper part, while the connection of the lower and upper chords in the upper part of the trusses is made at an angle to each other to form a ridge knot. 2. The frame according to claim 1, characterized in that the width of the spans is equal to the width of the frame, the height in the ridge knot is half the width of the truss. 3. The frame according to claim 1, characterized in that the lower and upper chords are made of a bent profile tube of square section. 4. Frame according to claim 1, characterized in that the span is 2 m. 5. Frame according to claim 1, characterized in that the spacing is 3 m. 6. The frame according to claim 1, characterized in that the diagonal lattice is made of a bent profile tube of square section. 7. The frame according to claim 1, characterized in that the longitudinal tie beams are made of a square-section profile pipe with a step of 0.6 m from the base to the ridge assembly.

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