STEEL BAR COMPRISING PROJECTIONS, USED TO FORM CONCRETE FRAMEWORKS, SUCH THAT THE CONCRETE REMAINS IN THE ELASTIC RANGE IN TERMS OF STRENGTH WITH A STRESS OF LESS THAN 50 OF THE BREAKING STRESS, IN WHICH THE BAR HAS A DIAMETER D AND THE PROJECTIONS ARE SPACED APART BY A DISTANCE L, HAVE A HEIGHT H AND AN AREA OF LESS THAN ONE FOURTH OF THE PERIMETER MULTIPLIED BY L

摘要

The invention relates to a steel bar comprising projections, which is used to form concrete frameworks and allows the concrete to remain in the elastic range thereof in terms of strength with a stress of less than 50% of the breaking stress, in which: the nominal diameter of the bar is Dn; the distance between the centers of consecutive projections is "L"; projection height is "h"; and projection area is "A," said area "A" being greater than 0.12 x P x L and less than 0.25 x P x L. The height "h" is greater than 0.12 x L and less than 0.25 x L.