System and method for bridge pier replacement
US8522381B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 7, 2011 |
| Grant date | Sep 3, 2013 |
| Priority date | — |
| Expiry date | Sep 7, 2031 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE01D22/00
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A system and method for replacing existing deteriorated piers of bridges in the same location as the existing pier, without the use of temporary bents comprising the steps of: installing one or more drilled shaft, preferably round, columns in the earth on opposite sides of the existing pier to be replaced transverse to the axis of the bridge; installing at least one temporary support bracket or embedded support beam on each of the columns; installing a temporary transverse girder onto the support brackets or beams of two columns; installing temporary support posts on the transverse girder; transferring the load from the pier to the temporary transverse girders once the columns have attained adequate strength; removing the pier to an elevation below the cap; constructing a new cap; transferring the load from the temporary girders to the new cap once the cap has attained adequate strength; and removing the temporary supports.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.