JPH02225778A - Manufacture of stay - Google Patents

Abstract

PURPOSE: To improve the durability by placing a thin sleeve on a reinforcing framework formed by engaging ends of plural bars with notches in the peripheral part of a ring, and filling the synthetic binder in the sleeve along the whole length thereof. CONSTITUTION: Ends of plural bars are engaged with notches provided in the peripheral part of a ring and arranged into the annular structure so as to form a reinforcing framework 3. A thin sleeve 1 is placed on the reinforcing framework 3, and a core 19 is arranged inside of the framework 3. Continuously, a space formed by the sleeve 1, the reinforcing framework 3 and the core 19 is filled with concrete 2, and after the concrete is hardened, the core 19 is removed.

Description

[Detailed description of the invention] [Utilization field of industry-1-] The invention relates to electrical cables, telephone lines and telegraph lines.

A manufacturing method for making pillars for positioning street lighting, traffic lights and sign posts, or any other arbitrary member or device that needs to be supported at a specific height and in a fixed position, and the product pillars obtained by this manufacturing method. Regarding.

E9. Background] The columns in question are made from a pasty synthetic material with a reinforcing framework according to a cooperating working sequence.The columns made according to the manufacturing method described above have high bending, torsional and compressive strengths. At the same time, the structure is extremely cylindrical and extremely light.

Made from concrete or other materials with or without pretensioning, provided with reinforcing elements such as internal reinforcement, characterized by requiring the use of reinforcing steel with a base material of high R6 for a given bearing capacity. Pillars have been known in the past. In addition to being expensive due to the amount of raw materials used, such columns are unsightly due to their physical proportions with respect to the intended use of these columns.

A preferred embodiment of the strut made by the manufacturing method of the present invention is
Its characteristics are light and slender with respect to its bending strength and its compressive and tensile strengths, so the advantages of the present invention are functional,
It is aesthetic and economical. Preferred columns are also resistant to atmospheric substances.

These columns therefore have a long service life without changing their inherent properties.

The manufacturing method described below is based on the structure of the reinforcing frame of the column,
It consists of the creation of a space organized around this framework by a tubular shaped enclosure and the molding of a paste-like synthetic material within the space which is also delimited and which together with the internal framework forms the body of the column.

According to the invention, in a method for manufacturing elongated cylindrical or frustoconical struts.

It consists of a plurality of longitudinally extending rods distributed around a central axis, the ends of these rods abut each section of each frame end, and around the ring corresponding to the end of each said rod. A reinforcing framework is assembled with a reduced cross-sectional area that engages the cutout formed, and a decorative sleeve is placed over the reinforcing framework thus formed.

The method of manufacture consists of molding the synthetic material 1 around the reinforcing framework by filling the sleeve with a synthetic bonding material along substantially its entire length.

In a preferred embodiment, the group of rods rests against a substantially horizontal longitudinal support which acts as a positioning member for the rods, allowing the size and shape of the rods to be determined. The longitudinal supports may be tilted relative to the structure supporting them to facilitate injection of the fluid synthetic material.

The reinforcement body is pre-stressed prior to molding, and
A plate-shaped copper sleeve can be placed over the end of the rod.

[Example] When explaining the example with reference to the drawings, the 19th
The column shown in the figure has a solid wall enclosure l having a cylindrical shape or an elongated truncated conical shape, an inner body 2 made of concrete material, and a steel! 8! It comprises a reinforcing framework 3 consisting of rods, the ends of which are arranged in a crown-like structure, and an internal space 4 which is initially defined by a core 19 which is removed after completing the one-piece manufacturing process.

A rod 3 made of structural steel cut to an appropriate length has its ends deformed to form six pairs of parallel and symmetrical flat surfaces 5. as shown in FIGS. 4 and 5. 6 is provided. Each surface 5.6 allows six bars to be held together as a semi-rigid framework 3 into which concrete is poured in a fluid state. Each surface 5.6 is obtained by an automatically carried out pressing operation.

-7 is provided at the smaller diameter end of the framework 3. The ring 7 has a peripheral recess 9 shaped to receive the end 8 of the six rods 3.

Ring 7 receives and retains the ends 8 of the six rods as shown in FIGS. 6 and 7. 6 The flat surfaces 5 and 6 of the ends 8 of the rods are
It fits into rectangular recesses 9 equally spaced from each other around the periphery of the ring 7.

Similarly, the other end 10 of the 6 rods is held in the recess 11 of the ring 12 at the larger diameter end of the skeleton 3. Each
Preferably, l has a rectangular or trapezoidal shape with a circular hole in the center.

The framework thus formed with the six bars and the two end rings has the form of a kind of elongated cage, and the reinforcing supports into which concrete in the fluid state is poured are used as tongues.
do. An enclosure 1, separately prepared from a tube made of PVC or the like, holds the concrete during setting. This enclosure, i.e. the tube 1, is deformed under the action of heat and pressure by thermoplasticity and is applied to a device, not described in detail, for the injection of pressurized hot air. This hot air softens the tube material and causes the tube to swell more at one end than at the other end, so that the entire tube assumes the desired shape, whether frustoconical or elongated. do.

Once the elongated framework is positioned within the thin-walled enclosure and the separation members and core are positioned, concrete is poured.

For this purpose, the device shown in FIG. 1O and iB'4 is used. This device is essentially constructed as a longitudinal support base capable of supporting suitably mounted parts, each at the ends and finally at the middle. The device described above comprises longitudinal beams 13 and transverse members 14,15 forming a rigid structure that simultaneously guarantees rigidity and immobility of each part of the column being formed.

A structure 160 in which during the forming process a support equipped with a variable number of columns cooperates with a device for pushing concrete material into the interior of the enclosure l.
position within.

FIG. 12 diagrammatically shows the above-described structure in the form of a head frame, in which the support 17 is placed in the wooden position l'''C first.
It is of the type shown in the .theta. diagram and in FIG.

The pouring of the concrete material is carried out through the base part of the column corresponding to the end of the larger diameter, ie at the end or end with the larger width. The reason why the concrete material is poured upward and not in the opposite direction is that it is poured evenly before it is poured into the narrow space defined by the group of bars 3 and the core 19, 11j3 forming the concrete structure and the reinforcing member. This is because it is necessary to ensure the integrity of the injection process and to prevent the formation of air pockets that would make it difficult to proceed with the injection process.

Nos. 131:4 to 1161m are the dimensions shown in Figure 13 showing the various stages of the work of installing the forest frame to the end of the support or longitudinal table used for lifting during pouring of concrete mortar. Using a brace 30, the ends of the six rods 3 are cut so that they have substantially the same length. In this way the attachment of the six rods 3 at the ends 1'i:) 7.12 improves the uniformity of the finish.

Figure 18 shows some caps 2 at each of the larger diameter and smaller force diameter ends of the column formed.
1.22 positioning is shown. Tani Kyaub 21.2
2, the lighting must be supported by a pillar at one end on its support base and at the other end by this pillar! A21 or any other type of device to be connected to the ends 23, 24. The items in +ffj are for temporary use only, and these caps should not be removed from the column. Remove from.

The tensile action applied to this column after pouring the concrete mortar so as to maximize its resistance to tension and compression is shown in FIG. Hold the larger diameter end of the reinforcing cage to ensure its alignment with the support. Also shown inside are disk-shaped parts 26 adjacent to the rod holding ring 17 in Y rows.

Into the smaller diameter end of the reinforcing cage is inserted the Ii pivoting member. This single-movement member comprises an axial body 27 having a truncated conical shaped head 28 at its larger diameter end. This movable member is attached to the end of the drive member 29 and fixed to each reinforcing rod 3. Drive member 2'
9 is actuated by a hydraulic device (not shown) that prestresses the 6 rods.

No. 19ij4 shows an idea about the structure of the pillars of the column. In this idea, after pouring concrete, the concrete is vibrated by the equipment used for the construction of this column uII while the material is solidifying. Injection of material may also be carried out alternately in the inclined position shown in FIG. Become.

The outer ring 25 and the disc-shaped member 26, which respectively correspond to the outer and inner parts of the ends of the column, are positioned in the direction of the pouring of the concrete and ensure the shaping of the column in this area.

Concrete, by its nature, cures slowly and reaches the first stage of curing approximately 8 hours after the concrete has settled. The slow curing of concrete continues for the required time until it solidifies in its entirety and reaches its maximum strength. During this time, companies will store their products in warehouses.

[Brief explanation of the drawing]

11L4 is an outline drawing of a column made according to the production form of the present invention. FIGS. 21-4 and 3 are cross-sectional views of each metal ring applied to each of the larger diameter and smaller diameter ends of the reinforcing cage, respectively, during the 4XIli construction of the column of FIG. 1; FIGS. 4 and 5 show the deviated portions formed at the ends of each reinforcing rod. 16LA and 5571:4 each show the state in which the ends of the 6 rods are introduced into the ring with a recess formed around the periphery. Figures 8 and 9 show a modification of the above system in which six rings are formed with recesses and orifices. Figures 1O and 111'A show the apparatus for supporting the column during construction. bl 12 Figure shows two column supports in a concrete pouring device. FIG. 138 FIGS. 14 and 15 illustrate the use of a table to make a reinforcing cage. Figure 16 shows the use of a combination of two tables to create a reinforcing cage for one column. Figure 17 shows the tightening of the rods forming the framework. No. 1814 indicates metal rings that are applied to both ends of the pillar. FIG. 19 is an axial sectional view of the finished column structure. [Explanation of symbols of main parts] 1・・・・・・・・・・・・・・・Sleeve (enclosure) 2
・・・・・・・・・・・・・・・Synthetic material 3・・・・・・
・・・・・・・・・Reinforcement frame (rod) 7.12・・・・
・・Ring 8, lO ・・・Frame end 9.11 ・・・Notch FIG, 1

Claims (1)

[Claims] 1. A manufacturing method for making an elongated cylindrical or truncated conical support, which consists of a plurality of vertically extending rods distributed around a central axis, with the ends of each of these rods being connected to each other. assembling a reinforcing framework in which the end of each of said rods is provided with a reduced cross-sectional area that engages a notch formed around said annulus in combination with and corresponding to each ring at the end of the framework; A method of manufacture comprising molding a synthetic material around a reinforcing framework by placing a thin sleeve over the reinforcing framework and filling the sleeve with a synthetic bonding material along substantially its entire length. 2. Inserting a core into the skeleton prior to adding synthetic material to the skeleton so as to be coaxial with the skeleton, and inserting the synthetic material into the space defined by the inner surface of the sleeve and the outer surface of the core. The manufacturing method according to claim 1, characterized in that the method is filled with. 3. Assembling said framework with substantially horizontal auxiliary supports having a length substantially corresponding to the required length of the columns and a width adapted to manufacture multiple frameworks simultaneously; 3. A method as claimed in claim 1 or claim 2, characterized in that each rod is positioned by the support for cutting and shaping the ends of the rods and for engaging the respective end rings of each rod. 4. The manufacturing method according to any one of claims 1 to 3, characterized in that the synthetic material is injected in an irregular shape while holding the framework covered by the enclosure in a non-horizontal position. 5. The manufacturing method according to any one of claims 1 to 4, characterized in that the reinforcing rods of the framework are pretensioned prior to injecting the synthetic material. 6. After injection of the synthetic material, the synthetic material is vibrated during curing with the support column horizontal.
6. The manufacturing method according to any one of 5 to 5. 7. Process according to any one of claims 1 to 6, characterized in that the synthetic material is bonded to the elongated sleeve. 8. The manufacturing method according to any one of claims 1 to 7, characterized in that a cap is provided at each end of the support column. 9. The manufacturing method according to claim 1 as detailed in the text. 10. A strut manufactured by the manufacturing method according to any one of claims 1 to 9.