SU881252A1 - Butt joint of reinforcement rods - Google Patents

Description

one

The invention relates to the structural design of butt joints of reinforcing bars, used in the manufacture of reinforced concrete products.

The joint of reinforcing bars is known, which contains a sleeve, into the hole of which the ends of the joined reinforcement are threaded, on which one-sided anchor heads are formed, resting on both sides of the ends of the sleeve

The disadvantage of this joint is the absence of its stiffness and unsuitability for connecting reinforcement of large diameter, at the ends of which it is impossible to land unilateral anchor heads.

Closest to the invention is a junction of reamer rods, comprising paired plates attached by welding to the end portions of the rods 2.

The disadvantage of this joint is the need to bend the pads when connecting reinforcing bars of different diameters, since the pads are located along the cross-sectional axis of each of the rods connected together, which complicates the connection of such rods. In addition, for joined rods of the same or different diameters located at the corners of the reinforcement cage, the thickness of the protective layer of concrete for the outer lining will be reduced compared to the protective layer of concrete for the lining of the joints of the inner rods and the rods themselves. and thereby the quality of manufacturing concrete products.

The purpose of the invention is to simplify the connection of aluminum rods of different diameter and improve the quality of production of reinforced concrete products.

To do this, at the junction of reinforcing bars containing paired lining, attached by welding to the end

The 20 parts of the rods, the pads and the reinforcement rods connected in cross section are placed non-axially.

FIG. 1 shows the junction of reinforcing bars of different diameters; a general view of F in FIG. 2 - section L-A

25

FIG. 1., t

The junction of reinforcing bars 1 and 2 of different diameters contains paired lining 3, attached by welded 4 to the end parts of the rods

Claims (2)

30 with mixing about the axis of the cross section of each of these rods. To manufacture the joint, the tabs 3 are folded offset to one of the reinforcing bars 1 or 2 and attached to it with welds; 4. Then, on this side of the plates 3, another reinforcing bar is applied and welded to the plates, resulting in a joint of reinforcing bars 1 and 2. Invention A joint of reinforcing bars containing paired plates attached by welding to the end portions of the rods, characterized in that in order to simplify the connection of mathematics} of rods of different diameters and improve the quality of production of reinforced concrete products, the plates and joined reinforcing rods in cross section are misaligned. Sources of information taken in attention in the examination 6 1. The author's certificate of the USSR 134003, cl. E 04 C 5/16, 1960. 2. Toropov A.S. Reinforcement work. M., Higher School, 1976, p. 150, fig. 111.