Method for replacing bridge support

The invention discloses a method for replacing a bridge support. The method comprises the following steps: (1) designing and manufacturing a new bridge support and an embedding sleeve in advance; (2)after nuts for fastening anchor rods are disassembled, jacking a beam body; (3) horizontally cutting an exposed upper anchor rod along the bottom surface of an upper seat plate of an old bridge support, then cushioning a lower seat plate of the old bridge support away from a padstone, horizontally cutting the exposed lower anchor rod along the surface of the padstone after cushioning, and sequentially taking down a middle body, the lower seat plate and the upper seat plate of the old bridge support after cutting; (4) after the old bridge support is taken out, allowing a beam to fall down and serve as a temporary support, forming a groove in a padstone anchor rod, and performing outer circle repairing on the upper anchor rod and the lower anchor rod; and (5) mounting the new bridge support.According to the method,