Antiseismic steel structural work
US5148642A · kind A · utility
49Cited by
18References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 16, 1989 |
| Grant date | Sep 22, 1992 |
| Priority date | — |
| Expiry date | Aug 16, 2009 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE04B2001/2496
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
In antiseismic steel structural works of the frame type or of the truss type, which are constituted by columns and by girders fastened to the columns, the girders of different shapes show, at least in the vicinity of one of their extremities, a dissipative zone constituted by a reduction of the actual cross section. The reduction of the actual cross section consists either in differently shaped indentations in the edges of the flanges of the girder or in round or polygonal holes which are regularly distributed over the flanges and have a small diameter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.