RU67138U1 - FRAME BUILDING DESIGN - Google Patents

Abstract

A beam building structure comprising a wall made in the form of a plate of plywood and shelves made in the form of bars mounted on the wall along the longitudinal edges of the strip, characterized in that the plates contain at least one bar, while the cross-sectional profile of the beam building structure made not axisymmetric. The use of the claimed device provides the ability to effectively use the structure when forming the frame of a wooden frame building (with high strength and high rigidity). In addition, it is possible to effectively use the structure when forming the frame of the panels used to form the walls and / or partitions of frame buildings and structures. 2 ill.

Description

The utility model relates to the field of construction, in particular to building structures used as structural elements of attic and floor floors, roof frames of residential and public buildings and structural reinforcement elements such as panels.

Known beam building structure made of a metal profile, such as an I-beam (see, for example, G.L. Katz Factory production of public buildings, M., Stroyizdat, 1988, p. 42).

The disadvantage of this solution is the significant weight of the structure and its non-functionality in cold climates, because due to the high thermal conductivity of the metal, it "works" as a cold bridge, when it is used, heating costs increase.

Known beam building structure made in the form of glued or solid timber (see, for example, TU-003-55563256-2002, developed by LLC Company Exportles).

This design is material-intensive, and therefore has a large weight, which also limits its use, since it requires appropriate reinforcement of the walls and foundation.

Also known is a girder building structure containing a wall made in the form of a plate of plywood and a shelf made in the form of bars fixed on the wall along the longitudinal edges of the strip (see TU 5366-010-04779210-2000 “Double-tee beams for gluing two-T-beams between floors and attics with belts from individual planks ”, developed by GU DalNIIS).

The area of use of this design is limited to using only interfloor ceilings for the device.

The technical problem to be solved is the provision of the possibility of using the claimed design as a frame element of type structures

panels.

The technical result obtained when solving the problem is expressed in ensuring the possibility of efficient use of the structure when forming the frame of the panels used to form the walls and / or partitions of frame buildings and structures.

To solve this problem, a beam building structure containing a wall made in the form of a plate of plywood and shelves made in the form of bars mounted on the wall along the longitudinal edges of the strip, characterized in that the plates contain at least one bar, while the profile of the transverse section of the beam building structure is not axisymmetric.

A comparative analysis of the features of the claimed solution with the signs of the prototype and analogues indicates the conformity of the claimed solution to the criterion of "novelty."

A comparative analysis of the features of the claimed solution with the signs of the prototype and analogues indicates the conformity of the claimed solution to the criterion of "novelty."

The features of the distinctive part of the claims provide an extension of the scope of the claimed design (as reinforcing elements - supporting i.e. frame elements) of structures such as panels.

Figure 1 schematically shows a cross section of a structure (option 1); figure 2 schematically shows a cross section of the structure (option 2);

The drawings show a wall made in the form of a plate of plywood 1, shelves made in the form of bars 2 fixed on the surfaces of the plates 1, along their longitudinal edges 3. In this case, the cross-sectional profile of the beam building structure is made axisymmetric.

The design is made by gluing in the factory on the stands of known design, providing a given fixation of its elements and their corresponding compression during the curing of the glue.

At the same time, for the manufacture of shelves (bars 2) wood is used not less than the 2nd grade of coniferous species (except for larch) according to GOST 8486-86 with dimensions according to GOST 24454-80, with the corresponding design characteristics according to SNiP P-25-80. The quantitative parameters of the defects in the shape and processing of parts (warping, deviation from parallelism of the layers and edges, wane) should not exceed those allowed for lumber of the 2nd grade. Through cracks extending to the end face are not allowed. Rotted, rotten and tobacco knots, as well as non-grown knots located on the edges, are not allowed.

The bars 2 are glued along the length using gear joints according to GOST 19414-90. Indicators of ultimate flexural strength of gear joints should not be lower than:

- when loading the edge (about 33 MPa and not lower than 24 MPa);

- when loading the reservoir (about 37.5 MPa and not lower than 27 MPa).

For the manufacture of plates 1, plywood of the FSF grade of a grade of at least V / BB according to GOST 3916.1-89 with a thickness of 8 and 10 mm is used.

Adhesive joints in structures should be performed on synthetic adhesives corresponding to SNiP P-25-80. In this case, adhesive joints must satisfy the following requirements:

- the moisture content of the wood of the beam parts before processing with protective compounds should be (12 ± 3)%;

- beams for the quality of adhesive joints must meet the requirements of GOST 20850-84;

- the thickness and width of the glued layers in the girder belts should deviate from the nominal not more than ± 1 mm;

- the thickness of the adhesive layers in the structural elements should be no more than 0.5 mm. Areas with a thickness of up to 1 mm are allowed if their length does not exceed 100 mm, and the distance between them is not less than ten times the length of these layers;

- non-glued sections are not allowed.

Finished structures, if necessary, are subjected to protective and / or decorative processing, to protect them from moisture, biodeterioration, fire and chemical corrosion, as well as giving them the necessary aesthetic appearance. These works are performed at the manufacturer. Protection is possible both from one and from a complex of these effects, which is regulated by the operating conditions of structures. At the same time, beams for buildings of the V degree of fire resistance must be protected from biodegradation for a period of maintenance-free service of 50 years, for parts of the VIII class of service conditions - according to GOST 20022.2-80; the wood of beams for buildings of the IV degree of fire resistance should be protected from biodegradation and fire by deep impregnation with diammonium phosphate (ammonium phosphate) with ammonium sulfate, borax with boric acid in a ratio of 1: 1 or other protective compounds with similar properties.

Finished products are packaged and sent to the consumer.

The formation of attic and interfloor ceilings, roof frames of residential and public buildings from the declared beam building structure does not differ from generally accepted technologies, except for the need to use powerful lifting equipment due to the low weight of the structure, while the work on connecting structural elements is simplified, since projected sections of the structure protrusions (plates) are mutually included in the grooves (gaps between the plates), while the magnitude of their mutual overlap can easily be changed before walkie-talkie connection.

In the process of perception of structural loads by beams, all elements of the beam structure work as a whole.

Claims (1)

Beam building structure comprising a wall made in the form of a plate of plywood and shelves made in the form of bars mounted on the wall along the longitudinal edges of the strip, characterized in that the plates contain at least one bar, the cross-sectional profile of the beam building structure made not axisymmetric.