Stressing anchorage for prestressing elements in a part of a structure
AssigneeVSL International AG
InventorsDavid Rogowsky, Erwin Siegfried
Life of this patent
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Abstract
In a stressing anchorage for prestressing elements (2) in part of a structure, at least one part of an anchor head (4) consists of a mortar-like mass in the area in which bores (3) are disposed to accept frustoconical wedges (8). The frustoconical wedges (8) are made of steel. Since the mortar-like mass on which the frustoconical wedges are supported is more ductile, i.e., more workable than the wedges (8), the distribution of load from the wedges (8) to the anchor head (4) takes place in such a fashion that marked peaks of the load are considerably reduced.
Claims11
A stressing anchorage for prestressing elements in part of a structure, said stressing anchorage comprising:
- a support device having a trumpet;
- an anchor head supported on the support device, the anchor head being provided with at least one continuous bore running parallel to the longitudinal axis of the anchor head;
- and
- a frustoconical wedge;
- wherein the bore has a conical extension tapering toward an outer face of the anchor head which is disposed away from the support device to accept the frustoconical wedge to hold one of the prestressing elements;
- wherein at least a part of the anchor head, in which is disposed the bore to accept the frustoconical wedge, consists of a mortar-like, hardened mass, while the frustoconical wedge is made of steel, whose frustoconical surface in the stressed state of the prestressing element abuts the surface of the conical extension of the bore in the mortar-like mass.
Dependencies are inferred from the claim text.