Strand chair for supporting prestressing cable and cross-mesh in elongated precast concrete plank
US4644727A · kind A · utility
22Cited by
6References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 4, 1986 |
| Grant date | Feb 24, 1987 |
| Priority date | — |
| Expiry date | Feb 4, 2006 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE04C5/20
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
The chairs include a lower chair portion for supporting multiple prestressing cables at the bottom of a plank and a narrow upper chair portion for supporting an upper prestressing cable located in the web between the hollow cores of the prestressed plank. The upper chair portion can be inserted into the strand receiving cups of the lower portion to form a structurally sound support for accurately placing the top and bottom reinforcing strands in the plank as it is cast.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.