S + F - Tensioning and/or fixed anchors

The anchorage with anchor plate or multiplane anchor and perforated disc is called stressing anchor (S) or accessible fixed anchor (F). The anchorage is placed on the concrete. In the perforated disc with 3 to 31 conical holes depending on the tendon type, the prestressing steel strands are anchored with round wedges.

When the prestressing force is transferred to the concrete, splitting tensile forces are generated which are absorbed by a helix and additional stirrups made of reinforcing steel.