RU2726669C1 - Flexible connection for joining of carrying and facing layers of different materials in multilayer enclosing structures - Google Patents

Abstract

FIELD: construction.SUBSTANCE: invention relates to construction, in particular, to reinforcement of enclosing structures. Flexible connection for joining of carrying and facing layers of different materials in multilayer enclosing structures has anchor sections, which are a helical surface with a different pitch, length and different geometry in cross-section and formed before curing from the same composite materials as the flexible connection rod itself, directly during continuous production of flexible connection on line, wherein the anchor sections themselves are made in the form of a thickening of the rod, are formed by winding the reinforcing thread or fiber prior to hardening from the same composite materials as the flexible connection rod itself, during continuous production of flexible connection on the line.EFFECT: improving reliability of connection of bearing and facing layers of multilayer enclosing structures of various materials, as well as creation of universal flexible connection for joining of carrying and facing layers of multilayer enclosing structures of various materials.3 cl, 4 dwg

Description

[0001] The invention relates to construction, in particular to the reinforcement of enclosing structures.

[0002] Known flexible connection for three-layer enclosing structures (RU 149446 E04C 5/07, publ. 01/10/2015), containing a composite rod with a restricting sleeve located in its middle part, and anchors at its ends, the rod along the entire length has a grainy coating. Moreover, the anchors can be made in the form of sections of a plastic pipe, or in the form of sections of a metal pipe with an adhesive applied to them and a granular layer. The disadvantage of this solution is the lack of manufacturability of flexible communication. First, a flexible connection rod is made, then a restrictive plastic sleeve is formed on the rod on thermoplastic machines. In a third step, the pipe sections are pressed onto the ends of the rod and, finally, the pipes are coated with an adhesive and an abrasive coating, thus forming anchoring sections. The long production cycle of flexible communication makes the process time-consuming and labor-intensive, requires the use of additional equipment (thermoplastic machine) and crimping devices.

[0003] The closest technical solution to the proposed one is an anchor for attaching a facing wall to a wall made of aerated concrete (RU 179265 U1 E04F 13/22, publ. 07.05.2018), containing a rod made of composite material, at one end of which a screw part provided from the side of the rod with a hexagon, and the other end of the rod is made in the form of a bent part of a composite material. In this case, glass-filled polyamide, polyimide or polypropylene are used as the composite material of the screw part. The advantage of this anchor is its high anchoring capacity due to its screwing in, as well as the possibility of installation in winter. The disadvantages of this anchor is a long production cycle of a flexible connection, which requires the use of additional equipment (automatic thermoplastic) to form the screw part of the anchor. A significant drawback of this anchor is its limited use - fastening the facing wall to the wall made of aerated concrete.

Disclosure of the invention:

[0004] The technical result of the solution is to increase the reliability of the connection of the bearing and facing layers of multilayer enclosing structures of various materials, as well as the creation of a universal flexible connection for connecting the bearing and facing layers of multilayer enclosing structures of various materials.

[0005] The technical result is achieved in that the flexible connection contains anchor sections, which are a helical surface with different pitch, length and different cross-sectional geometry of the anchor section itself, or a thickening of the rod created by winding a reinforcing thread or fiber. Moreover, the anchor sections are formed before the moment of curing from the same composite materials as the flexible bond rod itself, directly during the continuous production of the flexible bond on the line.

[0006] The flexible connection can be made in the form of a straight rod with one or more anchor portions, or in a bent form (L-shaped) with one or more anchor portions, it can have an abrasive coating, both on the helical surface and on the rod itself flexible communication.

[0007] The versatility of the types of the anchor sections of the flexible connection, formed directly on the line, and not requiring additional transition operations, allows the use of flexible connection in various materials of the bearing and facing layers of multilayer enclosing structures.

[0008] the Achievement of the technical result is confirmed by the results of testing the flexible connection of the bearing and facing layers of multilayer enclosing structures of various materials. In particular, tests were carried out to determine the ultimate strength of adhesion to the material of the supporting or facing layer of the enclosing structure, specified in GOST R 54923-2012 Composite flexible ties for multilayer enclosing structures.

[0009] The technical characteristics of the flexible connection increase the reliability of the connection of the carrier and the facing layers of the multilayer enclosing structures of various materials, and also, due to the simplicity of its manufacturing process, help to reduce energy consumption in the manufacture of the flexible connection.

[0010] Obviously, both the previous general description and the following detailed description are given by way of example and explanation only, and are not limitations of the present invention.

Brief Description of Drawings:

[0011] FIG. 1. Direct flexible connection with screw anchoring sections at the ends.

[0012] FIG. 2. Direct flexible connection with anchoring sections at the ends, created by winding a reinforcing thread or fiber.

[0013] FIG. 3. Curved flexible connection with a screw anchoring section

[0014] FIG. 4 Curved flexible connection with screw anchoring section and stop.

Implementation of the invention:

[0015] A flexible link is manufactured as follows.

[0016] The reinforcing fibers pass through the spreading and tensioning device, the impregnating path of the line and entering the forming path, which consists of a spreading ring, a spinneret and a yarn laying path.

[0017] Due to the design of the spreading ring, the fibers are stacked in such a sequence and with such a tension that, if necessary, allows a difference in the packing density of the inner and outer layers of fibers in the rod. Different packing density of the fiber layers allows the formation of different geometry in the cross section of the anchor sections in the yarn-laying area due to the yarn-laying ability to create different tightening forces.

[0018] The electric drive of the yarn spreader has its own software control, thanks to which the yarn spreader applies an annular arrangement of yarns or reinforcing fibers to the rod at different speeds, different pitches and different tightening forces without stopping the line, thereby forming not only screw anchor sections on the rod, but also stops ... The pitch of the screw surface is set by the mathematical dependence of the yarn spreader speed on the speed of fibers passing through it. The length of the anchor section or stopper is determined by the parameters entered into the control program and depends on the diameter of the flexible connection rod.

[0020] Depending on the application, the helical anchoring portions of the rod or the entire surface of the flexible bond rod are coated with an abrasive coating on a line abrasive coating mechanism.

[0022] If the flexible bond is assumed to be a straight rod, then after passing through the polymerization block, the rod is cured and cut to the required length of the flexible bond.

[0023] If the flexible connection is supposed to be made in a bent form, then after application of the abrasive coating, a pulling mechanism with replaceable mandrels of various sizes and configurations is installed on the line, forming the required geometry of the bent part of the flexible bond rod, then in the polymerization path the rod is cured, acquiring a bent shape.

[0024] Applicability of flexible connection in the joints of multilayer enclosing structures:

- a carrier layer made of aerated concrete and a facing layer of ceramic bricks;

- a bearing layer in the form of a brickwork made of solid ceramic bricks and a facing layer of ceramic bricks;

- a supporting layer in the form of a masonry made of porous ceramic stone and a facing layer of ceramic bricks.

Claims (3)

1. Flexible connection for connecting the bearing and cladding layers of various materials in multilayer enclosing structures, with anchoring sections, which are a helical surface with different pitch, length and different geometry in cross-section and formed before the moment of curing from the same composite materials as the rod itself flexible connection, directly during continuous production of flexible connection on the line, while the anchor sections themselves are created in the form of a thickening of the rod, formed by winding a reinforcing thread or fiber until curing from the same composite materials as the flexible connection rod itself, directly during continuous production of flexible communication on the line. 2. Flexible bond according to claim 1, characterized in that it has an abrasive coating over the entire surface. 3. Flexible connection according to claim. 1, characterized in that one end of the flexible connection is made of a curved shape.

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