Improvements in 1995 and devices in order to reinforce the concrete to the compression and the structures in concrete thus strengthened.

摘要

It is a device for reinforcing a concrete element (1) to the compression, comprising at least one bar (3) housed without adhesion in a channel (2) formed in said element. Each of the two ends of the bar is associated with a means adapted to cause it to bear longitudinally on the concrete of the element and that one of these two means, which is associated with at least one (31) of the two ends of the bar (3) is a rigid frame (4) housed in a cavity (5) of the element accessible from outside, frame designed to receive a removable manner, a thrust generator (7), one side of this frame being traversed by the end of the bar concerned and being arranged so as to cooperate with a unidirectional member (8) making it possible successively to push said end by the generator, and then to lock this end, with respect to the frame in the direction corresponding to the retraction of the end in the frame.