SU1644723A3 - Support and method of installation of same - Google Patents

Abstract

The invention can be used in street lighting, the construction of power lines. The aim of the invention is to enhance the functionality and increase reliability. The support shaft consists of hollow tapered sections of 1 polygonal section worn on each other. The base of the support is made in the form of a buried concrete block 13 with an annular anchor plate 10 to which vertical anchor rods 12 are attached. Above the level of the block 13, a flange 14 is mounted on the anchor plate, connected to the flange 15 of the lower section 1. When installing the base after placing the base in the pit 16 on the edges of the latter is mounted a pair of rolling beams, and on them a pair of support beams can be moved. The support beams are connected to the flange 14 and are flattened and concreted. 2 sec. and 3 z. p. f-ly, 7 ill. SS (L

Description

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The invention relates to the field of construction and installation of supports for lighting streets and squares, the construction of power lines, etc.

The purpose of the invention is to enhance functionality and increase reliability.

Figure 1 shows sechesh forming the shaft of the support; in fig. - sections of the trunk worn on each other with the image of increased tension in height; on fig.Z - barrel support, longitudinal section; in fig. - The base of the trunk; fig.Z - the same in the installation process; 6 and 7, the head of the support.

The support barrel is made of hollow conical sections 1 and 2 of polygonal cross section worn over each other. Sections can be made, for example, by bending edges or by pressing under pressure.

The barrel of the support (Fig. 2) consists of three rod elements with the same taper, which are pushed into each other with a closure and, accordingly, a schematic diagram of the 3, predominantly hydraulically. In diagram 3, the tension forces that tighten the rod elements are shown along the trunk 4 of the support. The shrinkage, according to the invention, is carried out in such a way that the tension forces along the support barrel correspond to the anticipated load forces so that the length of the support shaft 4 does not decrease when the support is installed in a loaded condition. Fig. 3 shows an arrangement of ropes 5 placed inside the trunk for shrinking and positioning sections of the trunk. The ropes 5 through fasteners, mainly fixing sheets 6, are connected to the sections or to the slab 7 to overlap the uppermost section and with the help of the tensioning device 8 are braced to a predetermined state. The ropes 5 extend so that they simultaneously burst the reinforcement 9 of the carrying cable.

Figure 4 shows schematically the fastening of the support shaft 4 to the base, made in the form of an anchor plate 10. The anchor plate 10 consists of an annular upper part 11, on which the vertical en is attached

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core bars 12. Anchor plate 10 is embedded in a concrete block 13. The upper part of the annular part 11 of the anchor plate 10 is located above the level of the concrete block 13, so that its upper end is freely accessible. A fixing flange 14 is mounted on the upper end of the annular part 12, on which the corresponding fixing flange 15 of the lowermost section 1 is fastened with the help of clamping bolts.

The preset tension force of the sections 1, as well as the installation of the head part, is carried out mainly before installation, in the horizontal position of the support shaft 4. The barrel 4 is installed after the concrete block 13 has hardened. After mounting the barrel 4 of the support, a construction pit 16, in which the anchor plate 10 is installed and the concrete block 13 is placed, is filled with concrete before the edge of the pit. Edge defects are eliminated with this arrangement.

The anchor plate 10 must be installed so that the barrel 4 of the support, which is attached to the anchor plate, takes up a vertical position. This prerequisite is fulfilled using the proposed installation method. This method is explained in more detail on the basis (FIG. 5).

At the edge of the construction pit 16, a pair of support beams 17 is laid on the ground. This pair of support beams 17 supports a pair of rolled steel beams 18 provided with downwardly threaded trunnions. The threaded pins of the rolled steel beams 18 are secured in the corresponding holes 19 of the annular part 11 of the anchor plate 10.

Stacked at the edge of the building. of the excavation 16, the ends of the support beams 17 are supported by threaded spindles or wedges (not shown) and, by precise positioning of the support structure, are positioned so that the upper surface of the annular part 11 of the anchor plate 10 on which the fixing flange 14 is mounted is in the horizontal position .

Then the anchor plate 10 is poured with concrete from the outside and from the inside, due to which a concrete block 13 is formed.

The anchor plate 10 is secured in the - this position until the concrete block 13 is completely hardened. After the concrete has hardened, the steel rolling beams 18 are separated from the anchor plate 10 and both pairs of beams 17 and 18 are removed.

The execution of the head portion (Figs 6 and 7) are the same. The head part has a cantilever beam 19, the end of which with the help of a double collar is not shown fixed to the trunk 4 of the support at the appropriate height. At the free end of the cantilever beam 19, a U-shaped connecting piece 20 is welded into which the rail post 21 is inserted. On both side plates of the U-shaped part 20, there are externally attached end plates 22, which are welded to the horizontal beam 23. The end plates 22, both side plates of the U-shaped part 20 and the rail stand 1 are each provided with a corresponding pair of holes 24. The rail stand 21 and horizontal the beams 23 are fixed on the cantilever beam 19 with the help of two bolts passing through the holes 24. The difference between the layouts (figs. 6 and 7) is that the rack 21 of the handrails (fig. 6) are fixed vertically, and on the League. 7 - obliquely. 7, the end plates 22 and the U-shaped part 20c are also installed with a corresponding inclination.

Claims (5)

1. A support including a base mounted on the base of hollow conical sections mounted one on another and connecting elements, characterized in that, in order to expand the functionality and increase the reliability of the section, polygonal section 0 is made five 0 five 0 five 0 five The base of the support is in the form of a recessed concrete block and an annular anchor plate fixed in it with vertical anchor rods and a flange located above the level of the block, while the lower section of the trunk is made with a supporting flange connected to the flange of the anchor plate. 2. The support according to claim 2, in which the barrel in the upper part is provided with supporting elements for fastening the process equipment in the form of a cantilever beam fixed to it and connected to bolted joints through the u-shaped part and end plates of the vertical and horizontal beams. 3. The support according to claim 1, characterized in that it is provided with ropes housed within sections placed inside the trunk. 4. The support according to claim. Characterized in that it is provided with a tensioning device. 5. The method of installation of the support, including placing the base of the trunk in the pit, filling the sinuses with concrete and installing it on the basis of the trunk sections, which, in order to enhance the functionality and increase the reliability, after placing the base in the pit, on the edges of the latter support beams, on which a pair of rolling beams are placed with the possibility of movement and connected by detachable joints to the base flange, then threaded supports or a wedge and a wedge are installed under the supporting beams oizvod m alignment in the horizontal plane of the base, then concreted pit and after hardening of concrete are disconnected with rolling flange beams. fzg.5 23 2 " 22 23 27 ix FIG. 6 22 21 7