Abutment with seismic restraints
US6745421B2 · kind B2 · utility
Inventors
Key dates
| Filing date | Jan 10, 2002 |
| Grant date | Jun 8, 2004 |
| Priority date | — |
| Expiry date | Apr 19, 2022 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE01D19/02
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
An abutment especially adapted for use with a bridge is provided which incorporates lateral containment elements which prevent undesirable lateral shifting or movement of the bridge during a seismic event. The lateral containment elements are constructed of varying materials, and form an integral part of the bridge abutment. The lateral containment elements are positioned laterally of the bridge sill and in abutting relationship with the lateral ends of the sill. The lateral containment elements may include mechanically stabilized earth, concrete blocks, concrete blocks with micropile tie downs, reinforced concrete blocks with shear keys which extend below ground, or steel piles or beams which are secured in the ground.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.