SU1458535A2 - Anchor for securing coils of flexible reinforcements - Google Patents

Abstract

The invention relates to anchors for securing naval prestressed reinforcement in the manufacture of reinforced concrete products and reduces the specific pressure on the concrete when the prestressing of the reinforcement is released. The anchor includes a housing 1 with grooves 2 for fitting the reinforcement, a seat for fixing the mold on the pallet and a side protrusion 4 along which a fixing channel 5 of variable cross section is installed with an annular liner 6 mounted therein. A distribution plate 7 is fixed across the housing where horizontal grooves are formed 8, conjugated with vertical grooves 9, made along the height of the body grooves. Plates 7 have stiffeners 10. 3 Il.

Description

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The invention relates to anchors for fixing naval prestressed reinforcement in the manufacture of jellies | Concrete products and is an improvement of the invention according to auto-

 St. No. 1377358.

The aim of the invention is to reduce the specific pressure on the concrete when prestressing the reinforcement. FIG. 1 shows the anchor, side view;

In the manufacture of reinforced concrete products anchors are installed in the design position in the cavity of the mold, depending on the scheme of winding flexible reinforcement, for this, the nest 3 of each anchor is fixed on 5 corresponding stop on the bottom of the mold. After that, using a winding mask, the flexible reinforcement with mechanical or electrothermomechanical tension is wound onto the anchors when it is placed in the canal of FIG. 2 is a view A of FIG. one; in fig. 3-10 navka 2 body 1. When winding the thread Ar-type B in FIG. 1. The mattress passes through the grooves 8 and 9 of the plate 7. The beginning of the thread being threaded and its co-anchor includes a housing 1 with a rounded end after winding it from the coil with fixed ends and grooves 2 for placing it in the fixing channel 5 of the protrusion 4 of the reinforcement , a nest 3 for fixing on the case 1 by means of an annular inserts- {at the bottom of the form and a side protrusion 4 - along the 15th flange 6. For intermediate anchors, on which i there is a fixing channel 5 of variable section with the annular liner 6 installed in it The channel can be made with a longitudinal slit or wave. Oring groove lateral projections MO n concrete necessary strength produ gut be located on two sides to p d t rental tension reinforcement by conclusions Pusa (not shown) stops .da form of slots 3 anchors. With

Across the casing there is fixed distribution and tensioning of the reinforcement anchors with its body plate 7, in which the concrete is compressed by the members. The presence of horizontal horizontal slots 8, conjugated with the mounting plates, reduces the specific ticking slots 9, which are made on the pressure of the anchors on the concrete, which eliminates the hull grooves. Plate 7 is its crush. Such reduction of the beginning or end of the thread is not fixed, the side projections 4 on their shells may not be performed.

After concreting the product and set

in the direction of prestressing reinforcement to concrete and is intended to increase the area of their distribution and thereby reduce the specific pressure on the concrete from the stress relief voltage of the reinforcement.

Claims (1)

Invention Formula Anchor for securing the coils of flexible reinforcement according to ed. St. No 1377358, depending on the number of anchors installed in the height of the form and orientation in the direction of reinforcement winding, the distribution: the casting plate 7 may have different, due to the fact that in order to reduce the height, the specific pressure on the concrete up and down beyond the enclosure, a different arrangement relative to one and the other end of the enclosure, including it is provided with a distribution plate fixed perpendicular to the housing axis, located between nio in which horizontal grooves are formed, mi. To increase the strength of the plate 7 mated with vertical grooves, you can have stiffeners 10. filled in the height of the grooves. After winding it from the coil, it is fixed in the fixing channel 5 of the protrusion 4 of the housing 1 by means of an annular insert 6. For intermediate anchors on which the concrete of the required strength is released, the tension of the reinforcement is removed by Sockets 3 anchors. With When the beginning or end of the thread is not fixed, the side projections 4 on their shells may not be made. After concreting the product and set A high pressure is required for reinforced concrete products, such as cellular and lightweight concrete, with reduced compressive strength. Invention Formula Anchor for securing the coils of flexible reinforcement according to ed. St. No. 1377358, due to the fact that, in order to reduce the specific pressure on the concrete, I (W 7 t 4 qju.i 4 cpus.2 -7 I- ....