Corrosion-resistant tension member, particularly a tendon for prestressed concrete
US7174684B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 2, 2004 |
| Grant date | Feb 13, 2007 |
| Priority date | — |
| Expiry date | Mar 3, 2025 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE04C5/122
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A corrosion-resistant tension member, particularly a tendon for prestressed concrete, comprising a bundle of tension elements arranged inside a sheathing, has at its ends anchoring devices each with an anchor plate. On the side of the anchor plate facing away from the open air side, a seal having tension elements running through it and having a sealing plate are arranged, the sealing plate being fixed in place on the side facing away from the anchor plate opposite the anchor body against longitudinal displacement. Between the anchor plate and a pressure plate butting against the sealing plate, pressure-transferring means, for example, a pressure tube, are provided, having a length calculated in such a way that a longitudinal displacement of the anchor plate that occurs when the tension elements are being tensioned, actuates the exertion of surface pressure to the sealing plate for activating the seal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.