RU208859U1 - CABLE RATE COLUMN - Google Patents

Abstract

The utility model relates to the field of bridges for special purposes or is designed for special functions, in particular, to elements of a cable rack. The technical result achieved by the solution is to expand the arsenal of technical means, increase ease of use, reduce the weight of the structure while ensuring high reliability. due to the fact that the developed column of the cable rack, containing four steel racks connected to each other by steel braces and crossbars to form a structure essentially in the form of a parallelepiped, four steel heels, each of which is welded to its rack from below; a steel head welded to the uprights from above, characterized in that the uprights, braces and crossbars are made in the form of pipes with a rectangular cross section; in the upper and lower parts of the column, the crossbars form essentially a rectangle, fixed at the corners on the posts, the head contains oval holes, the braces form a zigzag line between the posts on two opposite sides of the parallelepiped and abut against the crossbars.

Description

Field of technology to which the utility model belongs

The utility model relates to the field of bridges for special purposes or is intended for special functions, in particular for elements of a cable rack.

State of the art

A collapsible combined overpass is known (RU 2412301C1, publ. 2011.02.20), containing vertical supports and horizontal runs, cable structures, traverses with interchangeable platforms for sliding pipeline supports, an internal service platform installed if necessary. Vertical supports and horizontal girders, which are triangular spatial trusses with spacer tubular diagonals, are formed from a set of sections of various lengths from 1.5 to 6.0 m, interconnected by bolted connections. The vertical supports are connected on one side with the foundation, and on the other side with the upper installation frames, horizontal purlins are attached to the upper installation frames, transverse mounting profiles are attached to the lower pipes of the horizontal purlins with brackets, racks up to 3 high are attached to the mounting profiles with T-bolts, 0 m, consoles for cable ladders are attached to the racks with T-bolts, transverse traverses with removable platforms for sliding supports of pipelines are attached to the lower pipes of the horizontal runs. Due to the absence of fixed places for fastening the horizontal girders to the upper mounting frames of the supports, there is no need for a rigid binding of the coordinates of the foundations to the length of the horizontal girders, which gives greater design flexibility. In connection with the fastening of horizontal girders to the upper transitional frames with clamps and transverse traverses to horizontal girders, as well as the use of screwless connectors of cable ladders mounted on horizontal girders, as well as profile clamps of cable ladders to consoles and oval holes for bolting in the bases of the racks, there are no places stress concentrations in the structure due to thermal deformations. The use of sliding T-bolts for mounting transverse traverses, racks and consoles allows you to align the location and horizontal level of cable structures during installation and operation and reuse T-bolts if you need to disassemble the combined rack for transfer to another installation location.

However, in this solution it is not disclosed in detail how high strength is ensured with a decrease in weight.

The well-known universal support structure (trestle) chosen as a prototype (RU 2606730 C2, publ. 2017.01.10) for laying cables and/or pipelines with a distance between supports of up to 9 m contains vertical supports and horizontal girders (crossbars). Vertical supports and horizontal girders, which are spatial trusses, are formed from a set of welded sections of various lengths from 1 to 4 m, interconnected by diaphragms using bolted connections. Welded sections and diaphragms are made of perforated thin-walled profile. The vertical supports are connected on one side to the foundation through a welded support, and on the other side - to the upper mounting welded supports. Horizontal girders are attached to the upper welded supports. The lower profiles of the horizontal girders are connected by brackets through the transverse mounting profiles and attached to the upper mounting welded supports.

However, in this solution it is not disclosed in detail how high strength is ensured with a decrease in weight.

Utility Model Disclosure

In one aspect of the utility model, a cable trestle column is disclosed, comprising:

- four steel posts connected to each other by means of steel braces and crossbars to form a structure essentially in the form of a parallelepiped;

- four steel heels, each of which is welded to its rack from below;

- steel head, welded to the uprights from above,

characterized by the fact that

racks, braces and crossbars are made in the form of pipes with a rectangular section;

in the upper and lower parts of the column, the crossbars form essentially a rectangle, fixed at the corners on the uprights,

the head contains oval holes,

the braces form a zigzag line between the uprights on two opposite sides of the parallelepiped and abut against the crossbars.

In additional aspects of the utility model, it is disclosed that there are braces on two parallel sides, there are crossbars on the other two sides, additionally there are four crossbars connecting the racks in the lower and upper parts of the column; the thickness of the walls of the pipes of the racks is from 3 to 6 mm, the thickness of the walls of the pipes of the braces and crossbars is from 3 to 6 mm, the thickness of the heels is from 8 to 12 mm, the thickness of the head is from 15 to 25 mm; the material of the posts, crossbars, braces, heels, the head is steel of the same grade from St3, 09G2S, AISI 304, AISI 316, AISI 321; the column contains a hot-dip galvanized coating; the column contains an additional cap; racks are made of profile pipes of the same size from 80×40×4, 60×60×4, 100×60×4, 100×100×5, 120×120×6, braces and crossbars are made of profile pipes of the same size from 60× 30x4, 80x40x4, 80x80x4; the braces are covered with organoplastics; the wall thickness of the pipes of the braces is 50% greater than the width of the walls of the pipes of the cross members; bars made of at least one material made of titanium or aluminum are placed in the pipes of the braces, the length of the bars being half the length of the brace and they are installed in the center of the brace.

The main task solved by the claimed device is to provide a light, durable, reliable cable rack column.

The essence of the utility model lies in the fact that due to the design features, such as the geometry of the column, the materials of the elements of the column, mounting holes, the column has a low weight with high strength, which simplifies its installation.

The technical result achieved by the solution is to expand the arsenal of technical means, improve ease of use, reduce the weight of the structure while ensuring high reliability.

Brief description of the drawings

Fig. 1 shows a cable trestle column.

Fig. 2 shows column height options.

Implementation of the utility model

Cable overpass - elevated cable structure. Currently, cable racks are widely used in various large industrial, metallurgical and chemical enterprises, where the territory is extremely saturated with various communications and underground cable laying is difficult, as well as in areas with unfavorable soil conditions.

The cable trestle consists of columns and beams supported on columns and fixed to them. The claimed column is shown in Fig. 1, which shows the following elements:

101 - head

102 - oval holes for fastening the beam

103 - rack

104 - brace

105 - cross member

106 - heel

According to FIG. 1 it is clear that the column is essentially a parallelepiped formed by four posts 103, fixed along its ribs with the help of cross bars 105 and braces 104. The length of the cross bars 105 determines the width of the column, the length and the number of braces 104, welded in a zigzag line from the bottom to the top of the column, determine the length of the column. The height of the column is set based on the requirements for the cable rack, and is determined mainly by the length of the racks 103.

As is clear from FIG. 2, the declared column can have different heights, in practice the height is in the range of 1-6 m. The proposed design provides sufficient strength for the entire above range of heights.

A cap 101 is welded on top of all four posts 103, to which a beam is attached through oval holes 102. The oval holes 102 simplify the installation of the structure and also reduce the overall weight of the column compared to round holes.

Bottom welded to each post 103 is a heel 106 which contains holes for attachment to a base containing anchors.

The number of holes is not essential within the scope of this application, heels 106 with four holes are preferably used. Head 101 preferably has 24 oval holes 102 for attaching two beams.

Four cross bars 105 are welded at the bottom and top of the posts 103 to give the column a precise rectangular cross-sectional shape. Braces 104 are welded on two parallel sides of the column between the uprights 103, which provide resistance when the uprights 103 of the column tilt. The braces 104 preferably abut against the crossbars 105 at the top and bottom, and are also welded to the posts 102 at the same locations where the intermediate (between the lower and upper) crossbars are welded.

The entire column is made of steel pipes of rectangular section, preferably the pipe material is one of the following: steel grade St3 or 09G2S, AISI 304, AISI 316, AISI 321. These grades are used for the production of loaded elements of welded structures.

For the manufacture of columns used racks 103 in the form of tubes with a wall thickness of 3 to 6 mm, preferably 5 mm; wherein the wall thickness of the tubes of the braces 104 and the crossbars 105 is between 3 and 6 mm, preferably 4 mm; the thickness of the heels 106 is 10 to 12 mm, preferably 10 mm; the thickness of the head 101 is 20 to 25 mm, preferably 20 mm.

Racks 103 are preferably made of pipes with dimensions of 80x40x4 (length-width-thickness of pipe material), or 60x60x4, or 100x60x4, or 100x100x5, or 120x120x6 , the height of the rack 103 is determined by the requirements for the cable rack. The braces 104 and cross members 105 are preferably made from 60x30x4, 80x40x4, 80x80x4 tubes.

Such parameters provide ease of construction with sufficient rigidity and strength when used in cable racks.

Device manufacturing

For the manufacture of columns, as in figure 1, prepare steel pipes with specified parameters, for example, 80×40×4 and 60×30×4.

Cut the following elements:

- one cap 101 with given dimensions, for example, 70×35 cm;

- four racks 103 of a given length, for example, 1.5 m;

- six braces of a given length, for example, 70 cm;

- eight crossbars 105 of a given length, for example, 22 cm

- four crossbars 105 of a given length, for example, 49 cm.

- four heels 106 given sizes, for example, 15 × 15 cm.

Next, holes 102 are drilled in the heels 106 and the head 101.

Next, weld all the elements according to the image in Fig.1.

Next, the entire structure is covered with a hot-dip galvanized coating.

Embodiment 1

In this embodiment, the column braces are covered with organoplastics, such a solution, firstly, provides high protection of the most loaded elements from adverse environmental conditions, and secondly, provides increased strength to tensile forces while maintaining low weight. The thickness of the coating can be from 0.1 to 2 mm.

Embodiment 2

In this variant, the wall thickness of the pipes of the braces is 50% greater than the width of the walls of the pipes of the cross members. This decision is explained by the greater workload of the braces, which perceive more significant forces. Alternatively, the cross-beam tubes can be 4 mm thick and the brace tubes 6 mm, which, other things being equal, provides high structural reliability while reducing its weight compared to a solution in which both the braces and cross-beams have a tube thickness of 6 mm.

Embodiment 3

In this embodiment, bars of at least one titanium or aluminum material are placed in the braces tubes, the length of the bars is half the length of the brace and they are installed in the center of the brace, the height and width of the bars are chosen to ensure that the internal space is filled as completely as possible, and fastening is carried out either due to friction forces, or by welding, or by means of self-tapping screws passing through the pipe and bar.

Due to the lower density of aluminum and titanium and the use of relatively short bars in places where the brace is under the greatest load, it is possible to increase the reliability of the product, providing a relatively low weight.

The embodiments are not limited to the embodiments described here, other embodiments of the utility model will become apparent to a person skilled in the art based on the information set forth in the description and the knowledge of the prior art, which do not go beyond the essence and scope of this utility model.

Elements mentioned in the singular do not exclude the plurality of elements, unless otherwise specified.

Although the exemplary embodiments have been described in detail and shown in the accompanying drawings, it should be understood that such embodiments are illustrative only and are not intended to limit the wider utility model and that the utility model should not be limited to the particular arrangements and structures shown and described. as various other modifications may be apparent to those skilled in the art.

Claims (10)

1. A cable rack column containing four steel racks connected to each other by welding using steel braces and crossbars to form a parallelepiped structure, four steel heels, each of which is welded to its rack from below, a steel head welded to racks from above , characterized in that the posts, braces and crossbars are made in the form of pipes with a rectangular cross section, in the upper and lower parts of the column the crossbars form a rectangle, fixed at the corners on the posts, the head contains oval holes, the braces form a zigzag line between the posts on two opposite sides of the parallelepiped and rest on the crossbars. 2. The column according to claim 1, which contains braces on two parallel sides, contains crossbars on the other two sides, additionally contains four crossbars connecting the racks, in the lower and upper parts of the column. 3. The column according to claim 1, in which the wall thickness of the pipes of the racks is from 3 to 6 mm, the wall thickness of the pipes of the braces and crossbars is from 3 to 6 mm, the thickness of the heels is from 8 to 12 mm, the thickness of the head is from 15 to 25 mm. 4. The column according to claim 1, in which the material of the posts, crossbars, braces, heels, head is steel of the same grade from St3, 09G2S, AISI 304, AISI 316, AISI 321. 5. Column according to claim 1, containing a hot-dip galvanized coating. 6. The column according to claim 1, containing an additional head. 7. Column according to claim 1, in which the posts are made of shaped pipes of the same size from 80 × 40 × 4, 60 × 60 × 4, 100 × 60 × 4, 100 × 100 × 5, 120 × 120 × 6, braces and crossbars are made of profile pipes of the same size from 60×30×4, 80×40×4, 80×80×4. 8. Column according to claim 1, in which the braces are covered with organoplastics. 9. The column according to claim 1, in which the wall thickness of the pipes of the braces is 50% greater than the width of the walls of the pipes of the crossbars. 10. The column according to claim. 1, in which bars of at least one material of titanium or aluminum are placed in the pipes of the braces, and the length of the bars is half the length of the brace and they are installed in the center of the brace.

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