Anchoring device with spacer for hooping reinforcements

摘要

An anchoring device including two reinforcements for applying a hooping stress to a tubular structure, each of the reinforcements having a main binding portion which bears against the surface of the structure over 2 turns, a first end arranged at the end of a first end portion, and a second end arranged at the end of a second end portion. The anchoring device includes a spacer including a main body and two pairs of anchoring openings for the two ends of each reinforcement. The first and second end portions extend from a radial plane, where the reinforcements are tangential to the surface, then extend away from the surface from the radial plane as far as the anchoring openings so as not to exert a harmful point force on the structure.

主权项

1. An anchoring device, comprising:
at least two pre-stress reinforcements for applying a hooping stress to a tubular structure to be stressed, which structure is at least partially cylindrical having an axis X, each of the reinforcements having:
a main binding portion which surrounds and bears against the surface of the structure to be stressed over N turns, N being a non-zero integer,a first end arranged at the end of a first end portion in an extension of the main portion on one side, anda second end arranged at the end of a second end portion in an extension of the main portion on an opposite side, a spacer comprising:
a main body and at least two pairs of anchoring openings for receiving and anchoring the two ends of each reinforcement, the first end of each reinforcement being anchored in a first anchoring attachment, and the second end of each reinforcement being anchored in a second anchoring attachment,the spacer being arranged symmetrically on either side of a plane, called median plane of the spacer, said median plane being arranged perpendicular to the axis X, wherein said first end portion in an extension of the main portion on one side extends from a radial plane, parallel to the axis X, where said reinforcement is tangential to the surface of the structure, then extends away from the surface of the structure from said radial plane as far as the first anchoring attachment, and wherein said second end portion in an extension of the main portion on the opposite side extends counter to the first end portion, from the radial plane where said reinforcement is tangential to the surface of the structure, then extends away from the surface of the structure from said radial plane as far as the second anchoring attachment.