Method for supporting a transportation surface
US5400454A · kind A · utility
Inventor
Key dates
| Filing date | Mar 24, 1993 |
| Grant date | Mar 28, 1995 |
| Priority date | — |
| Expiry date | Mar 24, 2013 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE01D19/04
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A method of supporting a transportation surface, such as a vehicular bridge, a railroad trestle or an elevated walkway, that is resistant to unexpected, infrequent shocks such as might be encountered during an earthquake or similar disaster. The method includes arranging laterally spaced apart fixed bearing members on a surface adjacent a path for a transportation surface and supporting elongated elastic members on the bearing members at a distance spaced inwardly from the ends of the elastic members. The transportation surface may be placed in association with the elastic members. Beginning from an equilibrium state, each elastic member is capable of bending in proportion to the magnitude of an additional load applied intermediate the ends of the elastic member, with the ends of the elastic member sliding against the bearing members a distance also proportional to the magnitude of the additional load.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.