PROBLEM TO BE SOLVED: To provide a bridge footing replacement method capable of improving safety of a replacement work and reducing construction cost.;SOLUTION: A bridge footing replacement method according to this invention comprises following processes to: form a foundation 12 of an overhanging bridge footing 10 between a pair of single pole bridge footing 11, which support an upper structure, and form a beam part 16 shorter than a distance between the pair of single pole bridge footing 11 above the foundation 12; hang a pair of extension beams 20 with an open hole 18 into which the single pole bridge footing 11 is inserted along a longer direction of the single pole bridge footing 11 and connect the extension beams to both ends of the beam part 16; receive the upper structure 22 by a jack at top faces of the beam part 16 and the extension beams 20 and around an existing bearing of the single pole bridge footing 11; cut the single pole bridge footing 11, remove a lower part of the single pole bridge footing 11 and pull out and remove the tip from the open hole 18; and block the open hole 18 and form a new bearing of the overhanging bridge footing 10 on the top faces of the extension beams 20.;SELECTED DRAWING: Figure 1;COPYRIGHT: (C)2016,JPO&INPIT
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