Girder structure and method for producing such structures
US6550211B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jan 4, 2002 |
| Grant date | Apr 22, 2003 |
| Priority date | — |
| Expiry date | Jan 4, 2022 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE04C2003/0473
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
The invention concerns a beam structure comprising at least a wing (1, 1′) made of at least a first metal and at least a core (2, 2′) made of at least a second metal, said core being assembled substantially perpendicular to said wing and said core being a sheet material or sheet metal. The invention is characterised in that the first metal has a high or very high yield strength, and associated with a yield strength/tensile strength ratio close to 1, the second metal has a yield strength substantially lower than that of the first metal; the second metal has a yield strength/tensile strength ratio substantially less than 0.9 and less than the value of said ratio exhibited by the first metal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.