Apparatus for retensing pre-stress structure
US6318038A · kind A · utility
Inventor
Key dates
| Filing date | Dec 31, 1998 |
| Grant date | Nov 20, 2001 |
| Priority date | — |
| Expiry date | Dec 31, 2018 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49874
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
An apparatus for retensing a pre-stress structure. The apparatus includes a tensing apparatus installed at a rear portion of a precast strand support fixing member exposed from both ends of a prestress structure such as a precast beam for repeatedly tensing a precast strand having a stress loss. A checking member provided at the retensing apparatus for visually checking a stress loss in the tensed precast strand for thereby implementing an easier tensing of a reinforcing strand which is needed when fabricating a prestress structure and retensing an internal reinforcing strand even when a prestress loss occurs for thereby repeatedly retensing a deformed prestress structure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.