Spiral reinforcement structure for precast concrete elements and method for manufacturing a combined reinforcement mesh.

摘要

Described herein are a spiral reinforcement structure for concrete elements (1), such as concrete beams or columns, comprising a continuous metal wire or bar (4-7) bent into a number of spirally arranged consecutive windings (4, 5 and 6) with a spacing (d) in the longitudinal direction of the structure, and a method for manufacturing a combined reinforcement mesh (2-7, 2 min -7 min ). According to the structure, the planes of the windings (4, 5 and 6) are substantially perpendicular to the longitudinal direction of the structure, and progress in said longitudinal direction from one winding (4, 5) to the next (6) takes place within a limited distance (7) of each winding at the same side of the structure. The method comprises insterting structures (4-7 and 4 min -7 min ) of the above kind laterally inside each other from a side at least partially opposite said side where the limited distance (7, 7 min ) is situated and fastening the structures with one another.