RU156119U1 - REINFORCED CONCRETE STAND - Google Patents

Abstract

1. Reinforced concrete support pillar containing a volume of concrete located along the ring, tensioned and non-stressed working reinforcement and an attachment point at the end, containing a cylindrical shell and anchor rods attached to the shell and embedded in concrete, characterized in that the mount contains two parallel metal disks connected to the shell and radial metal stiffeners located between the disks attached to the disks and the shell; the diameters of the disks are equal to the outer diameter of the support strut, while nye bars additionally attached to the ribs zhestkosti.2. Reinforced concrete support pillar according to claim 1, characterized in that the attachment points are located at both ends of the strut. Reinforced concrete support pillar according to claim 1 or 2, characterized in that the parallel metal disks are made with a central hole. Reinforced concrete support pillar according to claim 1 or 2, characterized in that additional radial stiffeners are attached to the disks located on the concrete side and the anchor rods. 5. Reinforced concrete pillar of a support according to claim 1, characterized in that in the volume of concrete, mortgage transverse stiffeners are reinforced. Reinforced concrete support pillar according to claim 5, characterized in that the embedded transverse stiffeners are made in the form of a cross.

Description

The utility model relates to the field of construction, namely to long-length elements of building structures made of reinforced concrete, and can be used in particular in the manufacture of struts of supports of overhead power lines.

Known reinforced concrete rack for the supports of high-voltage power lines, containing the main volume of concrete, prestressed working reinforcement; a spiral attached to the working armature at the ends of the rack and in places where the pitch of the spiral changes; mounting and embedded loops; metal plates located at the ends of the rack and rigidly connected to the working armature, for example, by welding; the lower grounding conductor welded to the lower metal plate and the embedded loop, and the upper grounding conductor welded to the upper metal plate, the working reinforcement is made of high-strength reinforcing wire, and the metal plates are made with holes for dragging and rigidly fixing the ends of the working reinforcement; while metal plates, being both a fixed formwork, are firmly pressed to the concrete of the reinforced concrete stand, RU 107808 U1, publ. 08/27/2011.

This rack is a continuous reinforced concrete structure. In the perception of bending loads, the central part of the rack is practically not involved.

A reinforced concrete support pillar containing a volume of concrete located along the ring, stressed and unstressed working reinforcement and an attachment unit at the end, containing a cylindrical shell, anchor rods attached to the shell, embedded in concrete, and a flange welded to the shell on the outside is more rational, GOST 22687.2- 85, p. 34 (a copy of the link is attached).

This technical solution was made as a prototype of this utility model.

The disadvantage of the prototype is the presence of the outer flange welded after concreting, the protruding beyond the outer contour of the rack, the flange does not fit into the formwork used in the manufacture of the rack, as a result it is very difficult to ensure mutual perpendicularity of the flange and the longitudinal axis of the rack; due to skew, the longitudinal axis of the rack will be at an angle to the longitudinal axis of the support or other structure installed on it. In addition, the protruding flange makes storing and transporting racks difficult.

The objective of this utility model is to prevent the skew of the vertical longitudinal axis of the rack relative to the support or other structure mounted on it.

According to a utility model, in a reinforced concrete pillar of a support containing a volume of concrete located along the ring, tensioned and unstressed working reinforcement and an attachment point at the end, containing a cylindrical shell and anchor rods attached to the shell and embedded in concrete, the mount contains two parallel metal disks, connected to the shell and radial metal stiffeners located between the disks attached to the disks and the shell, the diameters of the disks are equal to the outer diameter of the support strut, while nker rods are additionally attached to stiffeners; fasteners can be placed at both ends of the rack; parallel metal discs can be made with a Central hole; additional radial stiffeners can be attached to the disks located on the concrete side and the anchor rods; in the volume of concrete, mortgage transverse stiffeners can be strengthened; embedded transverse stiffeners can be made in the form of a cross.

The applicant has not identified any technical solutions identical to the claimed one, which allows us to conclude that the utility model meets the patentability condition “Novelty”.

The essence of the utility model is illustrated by drawings, which depict:

in FIG. 1 - stand in an upright position in a perspective view;

in FIG. 2 - mount in axonometry, on an enlarged scale;

in FIG. 3 is the same as in FIG. 1, the attachment points are located at both ends of the rack;

in FIG. 4 - two racks interconnected by a bolted connection;

in FIG. 5 - fragment A in FIG. 4 on an enlarged scale in a perspective view;

in FIG. 6 - mount, option according to claim 3 of the utility model formula in a perspective view, on an enlarged scale;

Fig.7 - mount, option according to claim 4 of the formula of the utility model in a perspective view, on an enlarged scale;

in FIG. 8 - stand in an upright position;

in FIG. 9 is a section bB in FIG. 8.

Reinforced concrete support pillar contains a volume of 1 concrete, located along the ring, stressed 2 and not stressed 3 working reinforcement; the attachment unit 4 at the end of the rack contains a cylindrical shell 5 and anchor rods 9, attached by welding to the shell 5 and embedded in concrete. The mount 4 contains two parallel metal discs 6 and 7; the disk 6 is in contact with concrete, the disk 7 is located on the outside. The disks 6 and 7 are welded to the shell 5. The mount 4 also contains radial metal stiffening ribs 8, which are located between the disks 6 and 7 and are welded to them and the shell 5. The diameters of the disks 6 and 7 are equal to the outer diameter of the support strut. Anchor rods 9 are also welded to stiffeners 8. In the embodiment of claim 1 of the utility model formula, the mount is located at one end of the rack; it is possible to place attachment points at both ends of the rack (Fig. 1, 6), which allows you to combine the racks with each other (Fig. 8, 9). The disks 6, 7 can be continuous or be made with a central hole 10. To the disks 6 located on the concrete side and the anchor rods 9, additional stiffeners 11 can be welded, increasing the strength of the structure during bending. In the volume of 1 concrete can be reinforced mortgage transverse elements, in particular, cross 12.

The support stand is made as follows.

Tensioned working reinforcement 2 is passed through holes in the attachment unit 4. Tension devices fixing the fittings in a given position in space are attached to the ends of the prestressed reinforcement on both sides. A non-tensioning reinforcement 3 is attached to the mounting technological rings (not shown in the drawings). A technological spiral of metal wire with a diameter of 4-5 mm (not shown) is wound on top of the reinforcement. The frame thus formed is laid in a half-deck, which is filled with a predetermined amount of concrete mixture. Then close the half-deck with a second half-deck and fasten both half-deck together. After that, the tensioned reinforcement 2 is tensioned using tensioning devices and centrifuged to distribute the concrete mixture along the ring. After the concrete mixture has hardened, the tensioning devices are removed and the ends of the stressed reinforcement 2 are cut off.

When using a support stand with one attachment point, it is deepened into the ground with a free end, which, depending on the ground, can be equipped with a thrust bearing.

The option of placing the attachment points at both ends of the rack is used if two or more racks are connected to each other. Using the fasteners, a building structure, for example, a transmission line support, is attached to the upper attachment point.

The implementation of the distinguishing features of the utility model provides a technical result consisting in preventing the skew of the vertical longitudinal axis of the rack relative to the support and other structure installed on it, since the fastening unit is concreted together with the reinforcing cage, and is not welded after concreting to the shell, as is the case in the prototype. In addition, elements protruding beyond the outer contour of the rack are excluded.

Claims (6)

1. Reinforced concrete support pillar containing a volume of concrete located along the ring, tensioned and non-stressed working reinforcement and an attachment point at the end, containing a cylindrical shell and anchor rods attached to the shell and embedded in concrete, characterized in that the mount contains two parallel metal disks connected to the shell and radial metal stiffeners located between the disks attached to the disks and the shell; the diameters of the disks are equal to the outer diameter of the support strut, while nye bars additionally attached to the stiffeners. 2. Reinforced concrete support pillar according to claim 1, characterized in that the attachment points are located at both ends of the strut. 3. Reinforced concrete support pillar according to claim 1 or 2, characterized in that the parallel metal disks are made with a Central hole. 4. Reinforced concrete support pillar according to claim 1 or 2, characterized in that additional radial stiffeners are attached to the disks located on the concrete side and the anchor rods. 5. Reinforced concrete support pillar according to claim 1, characterized in that in the volume of concrete embedded transverse stiffeners are reinforced. 6. Reinforced concrete support pillar according to claim 5, characterized in that the embedded transverse stiffeners are made in the form of a cross.

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