Corrosion-protected tension member and plastically deformable disc of corrosion protection material for such a tension member

Abstract

A corrosion-protected tension member ( 10 ) comprises a plurality of tension elements ( 14 ) and an anchor device ( 44 ) with an anchor element ( 16 ) which is designed to transmit tension forces from the tension elements ( 14 ) to a superior structure ( 12 ), at least one elastically compressible sealing disc ( 28 ), and a supporting device ( 26 ) which is arranged on that side of the at least one sealing disc ( 28 ) which faces away from the anchor element ( 16 ). According to the invention, when the tension member ( 10 ) is in a state in which it is preassembled but not yet placed under tensile stress, at least one plastically deformable disc ( 30 ) of corrosion protection material is arranged between the anchor element ( 16 ) and the at least one sealing disc ( 28 ).

1 . A corrosion-protected tension member comprising:
 a plurality of tension elements; and   an anchor device having   an anchor element which comprises through-holes intended for the tension elements to pass through, is in contact with the tension elements so as to absorb tensile forces therefrom, and is designed and intended to indirectly or directly transfer said tensile forces to a higher-level structure,   at least one resiliently compressible sealing ring which is arranged on a side of the anchor element facing away from free ends of the tension elements and which comprises through-holes intended for the tension elements to pass through, and   a support device which is arranged on a side of the at least one sealing ring facing away from the anchor element and comprises through-holes intended for the tension elements to pass through, and   at least one plastically deformable disc made of an anti-corrosion material is arranged between the anchor element and the at least one sealing ring when the tension member is in a state in which it is pre-assembled but not yet under tensile stress.   
     
     
         2 . The tension member according to  claim 1 , wherein the at least one plastically deformable disc made of anti-corrosion material rests directly on the anchor element when the tension member is in the state in which it is pre-assembled but not yet under tensile stress. 
     
     
         3 . The tension member according to  claim 1  wherein, the at least one plastically deformable disc made of anti-corrosion material is formed as a complete disc. 
     
     
         4 . The tension member according to  claim 1 , wherein the cone penetration of the anti-corrosion material is of between approximately 60·0.1 mm and approximately 100·0.1 mm at a temperature of 25° C. 
     
     
         5 . The tension member according to  claim 1 , wherein the anti-corrosion material is microcrystalline wax. 
     
     
         6 . The tension member according to  claim 1 , wherein the volume of the anti-corrosion material per tension element is at least equal to the product of the length of the anchor element in the longitudinal extension direction of the tension elements and the surface area of the annulus between the tension element and the through-hole in the anchor element through which the tension element is guided. 
     
     
         7 . The tension member according to  claim 1 , wherein the modulus of elasticity of the at least one sealing ring and the resistance of the at least one plastically deformable disc to plastic deformation, respectively based on a compression force acting in the longitudinal direction of the tension elements are matched to each other such that the boundary surfaces of the through-holes in the at least one sealing ring are in sealing contact on the tension elements before the at least one plastically deformable disc has been deformed by more than 5% of the thickness thereof measured in the longitudinal direction of the tension elements. 
     
     
         8 . The tension member according to  claim 7 , wherein the at least one plastically deformable disc is assigned at least one resistance element which increases the resistance of said disc to plastic deformation. 
     
     
         9 . The tension member according to  claim 1 , wherein the anchor element has a stamp portion which, when the tension member is in the state in which it is pre-assembled but not yet under tensile stress, engages in a sleeve in which the at least one plastically deformable disc, the at least one sealing ring and the support device are received. 
     
     
         10 . The tension member according to  claim 1 , wherein the anchor element is connected in an operationally stable manner to a sleeve in which the at least one plastically deformable disc, the at least one sealing ring and the support device are received. 
     
     
         11 . A plastically deformable disc made of anti-corrosion material, which is intended and designed for use in a corrosion-protected tension member according to  claim 1 . 
     
     
         12 . The plastically deformable disc according to  claim 11 , further comprising at least one feature of  claim 1  which develop the plastically deformable disc.