Large-scale columnar structure made of a fiber reinforced plastic
US5996521A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 16, 1998 |
| Grant date | Dec 7, 1999 |
| Priority date | — |
| Expiry date | Jan 16, 2018 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE04C3/28
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A large-sized columnar body made of a fiber reinforced plastics materials (FRP) has three layers A, B and C in this order, respectively formed by a fiber reinforced plastics material consisting of continuous fibers and a resin, wherein the reinforcing fibers of the layer B are carbon fibers arranged in the longitudinal direction of the columnar body and that the reinforcing fibers of the layers A and C are carbon fibers and/or glass fibers arranged at .+-.50 to .+-.70 degrees with respect to the longitudinal direction of the columnar body. The large-sized columnar body made of FRP has a high compressive strength and hence can be lighter than conventional large-sized columnar bodies. Hence, it is suitable as a primary structural member used in buildings, structural components, aircraft, ships, and the like.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.