Method for demounting a prestressing cable
US6701599B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 21, 2001 |
| Grant date | Mar 9, 2004 |
| Priority date | — |
| Expiry date | Mar 14, 2022 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/5383
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
The invention addresses the problem of demounting a prestressing cable having a sheath, tendon extending in the sheath and tensioned between two anchoring devices, and a hardened material filling the sheath around the tendons. An energy dissipation device is installed between a zone of the structure and an accessible portion of the cable. The energy dissipation device has a first end applied to a bearing zone and a second end. It is suitable for limiting the force to which it is subjected as a function of the speed of relative displacement between its first and second ends. A first member for retaining the cable is arranged adjacent to the aforesaid portion of the cable. This portion is clamped in a second retaining member engaging the sheath and connected to the second end of the energy dissipation device. The cable can then be severed between the first and second retaining members.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.