METHODS AND DEVICES FOR FABRICATING AND LAYING REINFORCEMENT ARMOURINGS AND CURVED ELEMENTS REINFORCED WITH BARS FOR ELONGATE FLEXIBLE BODIES

摘要

The fabrication method produces simultaneously a plurality of curved profiled reinforcement bars of material which is stabilized by means of a mould helically wound on a mandrel. The mould comprises a plurality of grooves into which are arranged the reinforcement elements. The method for laying bars for a reinforced body utilizes a laying support which gathers a plurality of bars when these are being laid and their support is removed when the bars are set in place in the armature of the body. The profiled curved element reinforced with a plurality of bars comprises a support part having a plurality of parallel grooves in which are arranged the curved bars resisting traction efforts and having between them a certain relative mobility. When the bars are produced in a mould with a plurality of grooves, the mould may be used as a support part or as a laying support. The invention applies particularly to flexible conduits used in the oil industry.