| 摘要 |
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.
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