RU110105U1 - ANGULAR CONNECTOR ASSEMBLY ASSEMBLY - Google Patents

Abstract

 1. Corner detachable connection, containing two steel corners, which are inseparably connected with a set of structural elements and are interconnected with each other to form a composite profile in the form of a rectangular pipe using two groups of bolt joints oriented mutually perpendicularly, installed in parallel parallel holes for each bolt connection shelves of conjugate corners, while for each bolt connection in the zone of its location on the shelf with an opening of each of the conjugate corners in is placed on the inner side along the edge of the shelf a hard stop in contact with the inner surface of the edge parallel to the axis of the bolt connection of the mating shelf of the adjacent corner. ! 2. The assembly according to claim 1, characterized in that the bolted joints oriented mutually perpendicularly are arranged alternating along the length of the pair of mating angles. ! 3. The node according to claim 1 or 2, characterized in that the hard stop is made in the form of a welded steel element. ! 4. The node according to claim 1 or 2, characterized in that the hard stop is made in the form of a welded bar segment. ! 5. The node according to claim 1 or 2, characterized in that the corners are made equal or opposite-sex.

Description

The invention relates to construction, and specifically to a corner detachable assembly, which can be used to connect trusses or other structures, in particular to connect trusses forming the lateral faces of racks, masts, and similar structures where an extended detachable joint is required at right angles .

A known transmission tower support can be used as the vertical part of the mast, comprising in series connected and having a cross-section in the form of a rectangle, the upper section in the form of a rectangular parallelepiped and the lower section in the form of a rectangular truncated pyramid. Each section of this known rack is made up of four facet sections of connected trusses. Each truss is made in the form of longitudinal side elements (belts), which are steel corners that are inseparably interconnected by an intermediate set of structural elements, with one shelf of each corner oriented in the direction parallel to the section plane, and the second perpendicular to the section plane (RU 2330925 C1 , IPC Е04Н 12/08 (2006.01), 2008).

The trusses are connected in a section by a knot of a corner detachable connection with a pair, pairs of longitudinal lateral elements in the form of steel corners with the formation of a composite profile in the form of a rectangular pipe using two groups of bolted joints oriented mutually perpendicularly, installed with alternating along the length of each pair of mated angles in coaxial for each bolt connecting holes of parallel shelves of conjugate corners.

The set of structural elements in the known structure at each truss is a series of parallel parallel transverse steel elements connected by ends to steel corners, and in each section between all transverse steel elements of half-bevel pairs, passing from the nodes of the connection of one transverse steel element to steel corners to the middle the next transverse steel element in the direction corresponding to the direction from top to bottom. Sections of the known rack can be made with a cross section in the form of a square or rectangle, and the longitudinal side elements of the trusses - in the form of both equal and opposite shelves steel corners.

The relevance of the use of the corner detachable connection unit is due to the fact that the rack of this known design is assembled directly at the installation site from flat trusses, prefabricated in the factory, which can be easily transported, including several sets of racks at the same time. At the same time, it remains possible to dismantle the rack.

When operating the known rack, when it is used to support the power line, the main bending load is applied in the direction of the wires. In the transverse direction, the bending load is much less. This circumstance determines the feasibility of a rectangular cross-section of the rack when using power lines to support. At the same time, loading with wires leads to a decrease in the level of dynamic effects on the rack; the frequency and amplitude of its possible vibrations are reduced. The loading is great, but largely static and uniform.

In the case of the use of such a rack as a mast for placing any equipment at a height, it will be more susceptible to multidirectional oscillatory influences due, in particular, to the wind load. In this case, the vibrations can lead to a displacement of the pairs of longitudinal side elements relative to each other in the form of angles forming a composite profile in the form of a rectangular pipe, which will lead to the loss of the stop of these angles against each other under the action of a bolted joint, which in this case will weaken and lead to the loss of the bearing capacity of the composite profile in the form of a rectangular pipe and, as a consequence, to the loss of the bearing capacity of the mast structure as a whole, which in this case may collapse. This possibility is especially relevant in the case when bolted joints fastening pairs of longitudinal side elements in the form of steel angles into a composite profile in the form of a rectangular pipe are arranged with a significant step, while its possible reduction will lead to unreasonably high labor costs for assembling the mast from for an unreasonable amount of bolted connections.

The technical result of the utility model is to increase the bearing capacity of the node angular detachable by eliminating the possibility of loss of strength under conditions of changing dynamic loading.

This technical result is achieved by a corner detachable unit, which contains two steel corners, one-piece connected to a set of structural elements and paired with each other to form a composite profile in the form of a rectangular pipe using two groups of bolted joints oriented mutually perpendicularly, installed in the holes aligned with each bolt joint parallel shelves of adjoining corners. For each bolt connection in the zone of its location on the shelf with the hole of each of the mating angles, a hard stop is placed on the inner side along the edge of the shelf, in contact with the inner surface of the edge parallel to the axis of the bolt connection of the mating shelf of the adjacent corner.

In the best embodiment of the utility model, mutually perpendicularly oriented bolted joints are arranged alternating along the length of a pair of mating angles.

The hard stop can be made in the form of a welded steel element. In the best embodiment of the utility model, the hard stop is made in the form of a welded bar segment. Corners are made equal or opposite-sexed.

The feasibility of the utility model is confirmed by a specific example of the implementation of the node angular detachable connection used in the design of the searchlight mast, illustrated with graphic materials:

- figure 1 shows the mast, a General view;

- figure 2 shows the support platform of the mast, a top view;

- figure 3 shows the rest area of the lower mast section;

- figure 4 shows the average recreation area;

- figure 5 shows the upper part of the mast with a support platform;

- figure 6 shows the middle part of the mast in the connection zone of the upper and lower sections;

- Fig.7 shows the lower part of the mast;

- on Fig shows a cross section of the lower part of the mast;

- Figures 9 and 10 show sections of connected longitudinal lateral elements of trusses in the form of corners in the area of location of bolted joints; bolted joints located relative to each other at an angle of 90 degrees and essentially made identically;

- Figures 11 and 12 show a fragment of a longitudinal side element in the form of a corner with a fixed stop: Fig. 11 is a cross section, Fig. 12 is a View A in Fig. 11;

- Fig. 13 and 14 show a shoe: Fig. 13 is a side view, Fig. 14 is a top view (an additional lateral longitudinal element of the truss is shown in the form of conjugate corners).

The mast (Fig. 1) contains two series-connected upper 1 and lower 2 sections, a support platform 3 (Figs. 1, 2, 5) mounted on top of the upper section 1, a ladder 4 (Fig. 1; Figs. 5, 6 7 is not shown), fixed inside the cavities of sections 1 and 2 to enable a person to climb to the supporting platform 3, installed inside the cavity of sections 1 and 2, the rest area 5 (Figs. 1 and 3) of the lower section 1 and the middle rest area 6 (Fig .1 and 4; not shown in Fig. 6). The supporting platform 3 is made with a guard 7 and lightning rods 8. The staircase 4 in the lower section 2 is made with a guard 9 (Figs. 1 and 3; not shown in Figs. 6 and 7), which prevents a person from falling.

The upper 1 and lower 2 sections generally have a cross section in the shape of a rectangle, and in this particular embodiment of the utility model, a square. The upper section 1 has the shape of a rectangular parallelepiped. The lower section 2 has the shape of a rectangular truncated pyramid.

The upper 1 and lower 2 sections are connected by patch plates 10 (figures 1 and 6). On a larger base 11 (FIGS. 1, 7) of the lower section 2 for mounting the mast, shoes 13 are fixed on the foundation 12 (FIGS. 1, 7, 13, 14).

The upper 1 and lower 2 sections (each) are made of four forming facets of sections 1 and 2 of the connected trusses 14 of the upper section 1 and 15 of the lower section 2 (Figs. 5, 6, 7, 8). The trusses 14 and 15 of the upper 1 and lower 2 sections are made similarly, with the exception of the above differences due to the shape, namely: the farm 14 of the upper section 1 has a rectangular shape, and the farm 15 of the lower section 2 has a trapezoid shape.

Each truss 14 or 15 is made in the form of longitudinal side elements, which are steel corners 16 and 17 (Figs. 7, 8, 9, 10, 11, 12; further, the construction of the sections is described by the example of the lower section 2; upper section 1 in part concerning the essence of the utility model, is made similarly), which are inextricably interconnected by an intermediate set of structural elements 18 and 19 (Figs. 1, 5, 6, 7). These structural elements are a series of consecutive parallel transverse steel elements 18, welded by the ends 20 (Fig.7) with steel corners 16 and 17, and in each section between all transverse steel elements 18 pairs of welded steel half bevels 19 passing from the connection nodes 21 one transverse steel element 18 with steel angles 16 and 17 to the middle 22 of the next transverse steel element 18 in the direction corresponding to the direction from the upper section 1 to the lower section 2.

One shelf 23 (Fig. 8) of each corner 16 or 17 is oriented in a direction parallel to the plane of the truss 14 or 15, and the second shelf 24 is perpendicular to the plane of the truss 14 or 15. In this particular example, equal-angle corners 16 and 17 are used as for the top 1 so for the bottom 2 sections. But it is possible to use raznopolochny corners.

The trusses 15 (or 14 similarly) are connected to form a detachable corner assembly with pairing of a pair of longitudinal side elements in the form of angles 16 and 17 to form a composite profile in the form of a rectangular pipe (in the specific example, a square pipe, and in the case of using multi-shelf angles - rectangular) with using two groups of bolted joints 25 and 26 oriented mutually perpendicularly (Figs. 7, 9, 10) installed in openings coaxial with each bolted joint 25 or 26 of the shelves 23 and 24 parallel to each other (respectively Naturally) the mating angles 16 and 17. The bolted joints 25 and 26 have the same design, but are arranged alternately (see Fig. 7) along the length of each pair of mated longitudinal side elements in the form of angles 16 and 17. That is, the bolted joints 25 and 29 at the lengths of corners 16 and 17 from one to another change their position by 90 degrees. For light-loaded masts having a small height, the aforementioned condition of alternation may not be observed either in this or in the cases described below.

For each bolted connection 25 and 26 in the zone of its location on the shelf 23 or 24 (respectively) with the hole of each of the mating angles 16 and 17 is placed on the inner side 27 (Fig.9, 10) along the edge of the shelf 23 or 24 (respectively) hard emphasis 28 in contact with the inner surface 29 of the edge parallel to the axis of the bolt connection 25 and 26 of the mating flange 23 or 24 (respectively) of the adjacent corner 16 or 17.

The hard stop 28 (Figs. 11, 12) is made in the form of a welded steel element, for which, in this particular example, a piece of steel bar is used, but other steel products of any cross section can be used, and even actually undergone minor preparatory processing of various steel profiles.

The use of rigid stops 28 allows tightening together the corners 16 and 17 with bolted joints 25 and 26. This eliminates the possible relative displacement relative to each other of the corners 16 and 17 during operation of the mast, subjected to various dynamic effects and static longitudinal and bending loading.

Overhead plates 10 (Fig.6), which are connected to each other by the upper 1 and lower 2 sections, are installed in pairs at the corners of sections 1 and 2, each connected to the connected sections 1 and 2 by bolt connections 30 and 31.

In each pair of patch plates 10, the bolts 30 of one patch plate 10 are alternated with the bolts 31 of the other patch plate 10.

In the same way as described for the bolted connections 25 and 26 of the corners 16 and 17, for each bolted connection 30 and 31 with the patch plate 10 in the area of its location on the shelf (in detail in the drawings, the assembly of the bolted connection 30 or 31 in the area with patch plates 10 not shown, therefore, the positions of a particular node are not given; the node is similar to the node in Figs. 9 and 10) with an opening of each of the corners 16 and 17 mated in the area of the attachment plates 10 and placed on the inner side along the edge of the shelf a hard stop in contact with the inner surface of the edge couple the axis of the bolt joint 30 or 31 of the mating flange of an adjacent corner 16 or 17 (respectively).

The shoes 13 are made with flanges 32 (Fig. 13, 14) for interaction with the foundation 12 (Fig. 1) and on each flange 32 two plates 33 and 34, oriented with respect to each other at right angles, and an additional thrust plate 35 are rigidly fixed.

Also, in the same way as described for the bolted connections 25 and 26 of the corners 16 and 17, the plates 33 and 34 (Fig. 7) of each shoe 13 are connected to the corners 16 and 17 of the lower section 2 by two groups of bolted connections 36 and 37. Bolted connections 36 one plate 34 are alternated with bolted connections (37) of another plate 33.

At the same time, for each bolted connection 36 or 37 with a plate 33 or 34 in the zone of its location on the shelf (in detail in the drawings, the node of the bolted connection 36 or 37 in the zone with plates 33 or 34 is also not shown, therefore, the positions of a particular node are not given; the node is similar the node in FIGS. 9 and 10) with an opening of each of the corners 16 and 17 mated in the area of the plates 33 and 34, a hard stop is placed on the inner side along the edge of the shelf, in contact with the inner surface of the edge parallel to the axis of the bolted joint 36 or 37 of the mated shelf16 or 17 (respectively).

Details of the corner detachable assembly made in accordance with the present utility model are manufactured using known technologies used for the nomenclature of materials used in the construction. Assembly of the unit does not present any difficulties and is obvious to the average specialist.

Claims (5)

1. Corner detachable connection, containing two steel corners, which are inseparably connected with a set of structural elements and are interconnected with each other to form a composite profile in the form of a rectangular pipe using two groups of bolt joints oriented mutually perpendicularly, installed in parallel parallel holes for each bolt connection shelves of conjugate corners, while for each bolt connection in the zone of its location on the shelf with an opening of each of the conjugate corners in placed on the inner side along the edge of the shelf a hard stop in contact with the inner surface of the edge parallel to the axis of the bolt connection of the conjugate shelf of the adjacent corner. 2. The assembly according to claim 1, characterized in that the bolted joints oriented mutually perpendicularly are arranged alternating along the length of the pair of mating angles. 3. The node according to claim 1 or 2, characterized in that the hard stop is made in the form of a welded steel element. 4. The node according to claim 1 or 2, characterized in that the hard stop is made in the form of a welded section of the bar. 5. The node according to claim 1 or 2, characterized in that the corners are made equal or opposite-sex.