SU881272A1 - Method of prestressing ferroconcrete article reinforcement - Google Patents

Description

(54) METHOD OF PRELIMINARY RADIATION; STRETCH OF ARMATURE OF LEAF-CONCRETE PRODUCTS

one

The invention relates to methods of stressing reinforcement in the manufacture of prestressed concrete products.

A known method of prestressing reinforcement of reinforced concrete products includes heating the reinforcement with an electric current, laying thermally elongated reinforcement into the stops of the form of the trolley, moving it along the processing line of forming the articles and then releasing the tension of the reinforcement

The disadvantage of this method is the complexity of the equipment used for heating the reinforcement, supplying the reinforcement to the heater and laying the heated reinforcement in the shape stops of the trolley.

The closest to the invention is a method of prestressing reinforcement of reinforced concrete products, including the laying of reinforcement in the form of a trolley, the mechanical tension of the reinforcement, the movement of the trolley shape

on roller bearings along the technological line of the shaping of products with subsequent release of reinforcement 2

The disadvantage of this method is that it is necessary to stop the trolley form on the production line and use special mechanisms for tensioning and tempering the reinforcement.

The purpose of the invention is to provide stress and release of reinforcement in the course of moving the form trolley along the production line.

To do this, in the method of prestressing reinforcement of reinforced concrete from IS products, including placing the reinforcement in the trolley mold stops, mechanical tension of the reinforcement, moving the trolley mold along the processing line of forming the articles with subsequent release of the reinforcement, the reinforcement stops are connected to the roller supports of the carriage “Nets that are moved along the rail track alternately widening, broadening to

Claims (1)

Claim A method of prestressing reinforcement of reinforced concrete products, which includes placing the reinforcement in the car’s form stops, mechanical tension of the reinforcement, movement of the trolley shape on roller bearings along the technological line for molding articles with subsequent release of reinforcement, in order to ensure tension and release of reinforcement in the process moving the car-shape along the processing line, the armature supports are connected to the roller supports of the car, which is moved along the track alternately width, the broadening of which is equal to the magnitude of the reinforcement elongation.