Patent ID: 7857542

Claim:
An anchorage for at least one pre-tensioned or stressed tensile element, the anchorage comprising: one or more wedges each having a first region near a load and a second region remote from the load; an anchor body, wherein a tensile force is transmittable to the anchor body by means of the one or more wedges; and wherein the one or more wedges have a wedge shape to slide along an inclined surface of the anchor body to force the one or more wedges against the at least one pre-tensioned or stressed tensile element, each of the one or more wedges comprising: a first wedge-shaped layer in direct contact with a second wedge-shaped layer, the first wedge shaped layer located between the second wedge-shaped layer and the at least one pre-tensioned or stressed tensile element, the first wedge-shaped layer having a modulus of elasticity that is lower compared to the modulus of elasticity of the second wedge-shaped layer, wherein a greatest thickness of the first wedge-shaped layer, measured normal to the longitudinal axis of the tensile element, lies in the first region of the anchorage which is near the load, and a greatest thickness of the second wedge-shaped layer, measured normal to the longitudinal axis of the tensile element, lies in the second region of the anchorage which is remote from the load, wherein the first wedge-shaped layer lowers a stiffness of the one or more wedges in the first region near the load to more evenly distribute contact pressure on a contact area between the at least one pre-tensioned or stressed tensile element and the one or more wedges.