RU95003U1 - METALWOOD BUILDING ELEMENT - Google Patents

Abstract

 A metal-wooden building element in the form of a beam, comprising a metal core of an I-shaped profile, made integral, and wooden lining with grooves for the brand shelves, treated with antiseptic and fire retardant, connected to the metal core with fasteners and adhesive composition with filling the borders of the compound with a sealing, anti-corrosion, fire properties, characterized in that the metal core is made of steel strip 1 ÷ 2 m thick made on a bending machine two channels are connected by welding in a bilateral brands as fasteners used self-tapping screws and / or nuts and bolts.

Description

The utility model relates to construction and can be used as an independent multi-support and cantilever horizontal, inclined and vertical supporting structure, as well as as part of other building elements - wall panels, fencing panels, truss belts, etc.

Known metal-wood building element described in the patent for the invention of the Russian Federation No. 2109893, published 04/27/1998, metal-wood building element includes wooden lining, between which is mounted a metal part of the I-beam with shelves and a wall, and fasteners. The shelves of the I-shaped metal part are made in the tensile zone in the form of horizontal thickenings rigidly fixed to the wall; in the compression zone, in the form of strip overlays, also rigidly fixed to the wall. The height of the metal part is less than the height of the wooden plates and its parts are closed and crimped laterally by these plates by means of fasteners located horizontally and passed through the wooden plates and the metal part. Wooden facings are treated with an antiseptic and flame retardant, the metal part is protected by an anti-corrosion coating, and the joints of the wooden facings with each other and with the metal part are closed with sealant. Fasteners can be made in the form of hollow rivets, the ends of which are flared and protected flush with the outer surface of the wooden lining with sealant. The wall of the metal part can be equipped with vertical convexities of a closed profile protruding from its plane. On the outer side surfaces of the wooden elements, vertical nests can be made. In addition, horizontal thickenings of the wall of the metal part can be made in the form of corners or in the form of rolled steel triangular section, or in the form of rolled steel triangular section with curved concave hypotenuse.

The disadvantage of this technical solution is that this metal-wood building element can be used in a strictly oriented position - a belt working to compress upwards and cannot be used as vertical posts, braces, etc. building elements.

Known metal-wooden beam, described in the patent for the invention of the Russian Federation No. 2120005, published 04/27/1998, metal-wooden beam contains a metal core in the form of an I-beam profile, enclosed in wooden plates, which are pulled together with fasteners. The metal core is made of an I-beam profile of channels rigidly connected to each other, one of which forms a wall, and the other two - shelf profiles. Wooden plates are formed by vertical walls and outer beds of a T-shaped section, interconnected by thermal gluing at the seams located at an angle from 0 to 60 degrees to the horizontal. Between the shelves of the profile and the planes of the outer wooden beds facing them, gaps are formed, filled with expansion joints in the form of polyurethane tapes. The vertical walls of the outer wooden facings are made of prefabricated flat plates and bars perpendicular to them, connected to each other by thermal gluing. The channels forming the profile shelves are connected to the channel forming the profile wall on electrically rivets, and the walls of these channels are welded to each other end-to-end with a step weld. The shelves of the channel forming the profile wall can be incised and bent alternately at an angle of plus or minus 90 degrees to the horizontal position and welded to the channels forming the profile shelves. The profile wall can be formed of welded channels, articulated with each other by their walls and connected to channels forming the profile shelves. All channels forming an I-beam profile of a metal core can be bent.

The proposed metal-wooden beam has increased strength, the metal core and the wooden lining of which work as a whole. The disadvantage of a metal-wooden beam is the high complexity of manufacturing, both a metal core and wooden linings.

A wood-metal beam is known, described in the patent for the invention of the Russian Federation No. 2365716, published March 7, 2008. In the well-known reinforced wooden beam made of a metal core in the form of an I-beam and wooden linings treated with an antiseptic and fire retardant, connected together by nails with holes for connecting elements , the beam has a metal core made of two channels made of sheet metal, and wooden elements made of longitudinal smooth boards are connected together using two external channels, longitudinally grasping the side parts of the structure on both sides, while the external channels and the metal core are interconnected to the full length by spot welding rivets, forming a rigid integral structure of a reinforced I-beam.

The disadvantage of a wood-metal beam is its large metal consumption, which increases the weight of the beam and the rather laborious installation of connecting elements.

The closest analogue, selected as a prototype, is a metal-wooden building element described in the patent for utility model of the Russian Federation No. 34577, published on December 10, 2003. A metal-wooden building element in the form of a beam includes a metal core of an I-shaped profile, made integral in height in the form of symmetrically located relative to the horizontal axis of the "T" -shaped elements and a thin sheet welded to them, and wooden lining treated with an antiseptic and flame retardant, connected to a metal core with tubular metal pins and adhesive composition. “T” -shaped elements are each formed from two corners, the boundaries of the connection between the metal core and the wooden plates are filled with a sealing compound, which provides, along with adhesive properties, metal protection against corrosion and increased fire resistance.

The disadvantage of this metal-wooden building element is that its metal core of non-uniform thickness is thicker at the joints with the corners than along the entire main length of the metal sheet (at least three times). At the same time, increased metal consumption affects the weight of the element and the strength characteristics of both the metal core itself and the metal-wood building element. At the points of transition from the metal sheet to the corners, the metal-wooden building element breaks.

The technical result of this utility model is to increase the bearing capacity while reducing the weight and cost of the product.

The specified technical result is achieved by the fact that in a metal-wooden building element in the form of a bar, comprising a metal core of an I-shaped profile, made integral, and wooden lining with grooves for the shelves of the brand, treated with antiseptic and flame retardant, connected to the metal core with fasteners and adhesive composition with filling the borders compounds with sealing, anti-corrosion, fire-resistant properties, according to a utility model, the metal core is made of on a bending machine from a steel strip 1 ÷ 2 mm thick of two channels connected by welding to a two-sided tee, we used self-tapping screws and / or bolts with nuts as fasteners.

Due to the fact that in the metal-wooden building element the metal core is made of two channels made of a steel strip 1 ÷ 2 mm thick, welded into a double-sided tee made on a bending machine, the screws used are fasteners and / or bolts with nuts, increases bearing capacity of a metal-wooden building element while reducing its weight and cost.

The inventive metal-wooden building element has novelty, differing from the prototype of the above features, and ensures the achievement of the result perceived by the applicant.

The inventive metal-wooden building element can be widely used in the field of construction and can be used as an independent multi-support and cantilever horizontal, inclined and vertical supporting structure, as well as in other building elements - wall panels, fencing panels, truss belts, etc. , therefore, meets the criterion of "industrial applicability".

The essence of the proposed metal-wooden building element is illustrated by drawings, which show:

figure 1 is a General view of a metal-wooden building element.

figure 2 is a section aa metal-wood building element.

A metal-wooden building element in the form of a bar contains a metal core 1 of an I-profile, and wooden lining 2 with grooves 3 for a metal core 1, treated with an antiseptic and fire retardant, connected to the metal core 1 with fasteners 5 and adhesive 6 with sealing, anti-corrosion, fire-retardant properties with filling in the boundaries of the connection. The metal core 1 is made of two channels 7, connected by welding into a two-sided tee - metal core 1. The channels 7 are made on a bending machine from a steel strip 1 ÷ 2 mm thick. As fasteners 5 used screws, screws and / or bolts with nuts.

Before assembling the metal-wooden building element on the inner surfaces of the wooden plates 2, profile longitudinal grooves 3 are selected, congruent to the channel 7 of the metal core 1.

Wooden linings 2 with grooves 3 are treated with an antiseptic and a flame retardant.

The boundaries of the connection between the metal core 1 and the wooden plates 2 are filled with an adhesive sealing compound 6, which, along with the adhesive properties, provides protection of the metal from corrosion and increased fire resistance. As such a composition, the Garant-Plus sealing adhesive mastic according to TU 5772-002-39930146-99 or any other mastic with similar properties can be used (FIGS. 1, 2).

When wooden plates 2 are closed, they completely cover the metal core 1. The assembled metal-wooden building element is compressed with special devices (not shown in Figs. 1, 2) uniformly along the entire length, holes are staggered with a given step, at a given angle (90 ° and / or 45 ° and / or 60 °), combining a right angle and an inclined angle. For self-tapping screws, the holes are not through. Using fasteners 5, self-tapping screws and / or bolts with nuts, connect the metal core 1 with wooden plates 2 in an integral whole.

The holes for the fasteners 5 are filled with an adhesive sealing compound 6, they also lubricate the places of entry and exit of these fasteners 5.

In some cases, it is possible to reinforce the metal core 1 with an additional sheet of metal (metal strip) (not shown in FIGS. 1, 2). In the first case, this strip can be inserted between the channels 7, along the entire length and height of the walls of the channels 7. This case is provided for any thickness of metal. In the second case, two strips are superimposed on the outer sides of the shelves of the metal core 1, along their entire length and width. This case is provided when using a sheet 1 mm thick. In both cases, the strips are connected by welding into a single metal core 1.

The proposed metal-wooden building element increases the bearing capacity while reducing its weight and cost, due to the fact that in the metal-wooden building element the metal core is made of two channels made of steel strip 1 ÷ 2 mm thick, connected by welding to a two-sided tee, in as fasteners used self-tapping screws and / or bolts with nuts.

Claims (1)

A metal-wooden building element in the form of a bar, comprising a metal core of an I-shaped profile, made integral, and wooden lining with grooves for the shelves of the brand, treated with antiseptic and flame retardant, connected to the metal core with fasteners and adhesive composition with filling the borders of the compound with a sealing, anti-corrosion, fire properties, characterized in that the metal core is made of steel strip 1 ÷ 2 m thick made on a bending machine two channels are connected by welding in a bilateral brands as fasteners used self-tapping screws and / or nuts and bolts.