RVL-wire loops consist of a single high strength steel wire and a steel box. RVL-loops are used in concrete elements, mainly walls, to form connections to resist the shear force between the joints.
When the joint between concrete elements is loaded, the longitudinal shear force in the joint is divided to an angled compression component and a horizontal pull component at the indented joint. RVL-loop transfers the shear forces acting in the joint between concrete elements by the pull component of the wire rope and the compression component formed by the steel boxes and the seam.
Approvals
Finland: 5B EC2 101