Seismic isolation sliding bearing for structure
US5867951A · kind A · utility
Assignees
Inventors
Key dates
| Filing date | May 29, 1997 |
| Grant date | Feb 9, 1999 |
| Priority date | — |
| Expiry date | May 29, 2017 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE04H9/021
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A seismic isolation sliding bearing for a structure, is made up of a dish 1 having a conical concave surface having a predetermined inclination or a spherical concave surface in its central portion, and a bearing element 2 in which the bearing element includes a base 3 whose portion for contact with the concave surface of the dish 1 is formed by a low-friction material, and a holder 6 which holds the base 3 so as to press it against the concave surface of the dish 1. The seismic isolation sliding bearing of the present invention neither resonates to the vibration period of any earthquake nor causes a large oscillation during a normal small vibration, but has a restoring force because of its structure which enables the bearing element to readily return to its original position after an earthquake ceases.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.