| 主权项 |
1. A reinforcing bar with improved adherence for a reinforced concrete component, consisting in of a metal section (1) extending in a longitudinal direction, having the form of a flattened strip of substantially rectangular cross-section, with two opposite wide faces (10, 10′) extending between two lateral sides (11, 11′) and including a plurality of projecting anchoring portions which are longitudinally separated from each other and bearing on the concrete in a direction opposite to a tensile force applied to the bar (1),
characterized in that each of the two wide faces (10, 10′) of the strip is provided with a series of anchoring portions in the form of elongated locks (2, 24) separated from each other by hollow portions (3, 3′) in the form of grooves and extending transversally over the whole width of the strip (1), substantially up to the lateral sides (11, 11′) thereof, and each of said elongated locks (2) extends in projection over a small height, not exceeding a quarter of the thickness of the strip (1), and has, in cross-section, a substantially trapezoidal profile, with an embossed face (21) of small width with respect to its length and two inclined flanks (22, 23) for connection with the elongated bottom (31, 31′) of the adjacent grooves (3, 3′) that constitute, for each lock (2), two inclined faces (22, 23) that bear, each in one direction, on the coating concrete, said inclined faces (22, 23) each having an elongated shape extending between the two sides of the strip (1), so as to distribute the bearing forces over all the width thereof. |
