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

A steel bar with ribs to form concrete armours, which allows the concrete to be maintained on the elastic zone of its strength with a stress less than 50% of the damage stress, where such bar has a nominal diameter D n ; a distance between consecutive rib centers "L"; a rib height "h" and a rib area "A", where such area "A" is 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.