Patent ID: 6701688
Filing Date: 2004-03-09
Classification: E04C,F16L

Abstract:
A construction element comprising:a moulded concrete member having two facings, respectively active and passive, spaced from one another by a preselected distance, and between which is embedded a reinforcing cage having, on either side of a neutral axis, two layers, respectively active and passive, which are separated by a spacing, each layer having at least one longitudinal solid bar of preselected cross-section, said spacing and said cross-section of the bars being determined in relation to loads to be applied, said two layers being respectively parallel to both facings of said moulded element and being connected by transverse linking armouring; wherein each longitudinal bar of at least one layer of the reinforcing case being a flat bar with two flat faces and having preselected width and thickness, an external face turned towards a corresponding facing and an internal face turned towards the neutral axis, wherein said width and thickness are determined to provide said cross-section of the bar; and wherein said transverse linking armouring includes at least one elongated metal element, welded alternately on the internal faces of two corresponding flat bars, respectively of the active and of the passive layers, and wherein each facing of the molded element is placed at a preselected minimum encasing distance from the external face of the corresponding longitudinal flat bar, in order to provide the construction element with the thickness just necessary to provide a preselected strength; and further wherein the transverse linking armouring between two respectively active and passive longitudinal flat bars comprise at least one undulated band welded alternately on the internal faces of the flat bars.