Abstract: An anchorage for at least one pre-tensioned or stressed tensile element, wherein the tensile force is transmittable to an anchor body by one or several wedges, including a wedge-shaped layer which has a modulus of elasticity that is lower than at least one other parts of the anchorage, whereby the greatest thickness of the wedge-shaped layer, measured normal to the longitudinal axis of the tensile element, lies in the region of the anchorage which is near the load. The wedge and/or the anchor body may be formed at least by two wedge-shaped adjacent layers, with at least one of the layers being formed from a material having a lower modulus of elasticity than the material from which the further layer(s) of the wedge and/or of the anchor body is/are formed, and the greatest thickness of the layer is provided in the region near the load.

Abstract: A reinforced concrete ceiling is characterized by a combination of the following features: a concrete slab (1) the thickness (D) of which falls short of the total thickness of the reinforced concrete ceiling, and intersecting ribs (2) which are each connected with an end region (3) to the concrete slab (1) in a force-transmitting manner and project freely upwards from the concrete slab (1), i.e., without being integrated in a further supporting surface structure, wherein their top end regions (4) are designed to absorb compressive and/or tensile forces and wherein the ribs (2) are connected to each other in a frictional manner at the respective intersection points (9), and their regions lying in each case between the top and bottom end regions (3,4) have at least one aperture (6).