Arch bridge
US7469438B2 · kind B2 · utility
Inventors
Key dates
| Filing date | Jul 10, 2006 |
| Grant date | Dec 30, 2008 |
| Priority date | — |
| Expiry date | Jul 10, 2026 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE01D4/00
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
An exemplary bridge includes an arch unit. The arch unit includes a first abutment and a second abutment, a deck extending between the first and second abutments, a pair of asymmetrical arches, and a plurality of suspender members 3 attached between the arches and the deck. The first and second abutments are spaced apart from each other at a predetermined distance. The asymmetrical arches are juxtaposedly arranged between and supported by the first and second abutments. Each of the asymmetrical arches includes a first arch foot portion mounted on the first abutment, a parabolic portion proximate to the first arch foot portion, a catenary portion proximate to the parabolic portion, and a second arch foot portion proximate to the catenary portion mounted on the second abutment.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.