Construction method for prestressed concrete girder bridges
US7373683B2 · kind B2 · utility
8Cited by
4References
7Claims
0Family size
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Key dates
| Filing date | May 13, 2004 |
| Grant date | May 20, 2008 |
| Priority date | — |
| Expiry date | Jan 29, 2025 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE01D2101/28
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A construction method for simple bridges or continuous bridges using prestressed concrete girder (PSC girder) and precast slabs (PSC slabs) where prestress is applied to the lower portion of the center of the girder. bridges of low clearance and long span are constructed by preventing a loss of prestress due to load of the slabs and relieving excessive compression force generated on the upper edge portion of the center of the girder during the construction of the bridge.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.