Continuous beam bridge slope ratio alternately lifting construction method

The present invention discloses a continuous beam bridge slope ratio alternately lifting construction method, by the bottom of the pier corresponding to the bridge structure, two sets of front and rear axles at the position of active application station may lift jacking, by the pump station control console driving two groups of jacks for lifting alternately variable slope ratio, while a set of processes of lifting jacks at the bottom of another set of jack plug pad temporary steel support pad, in order to eliminate problems height difference between the supporting points, so as to effectively ensure the structural safety of the bridge structure in the lifting process. So that the beam reaches the existing design pose continuous variable slope ratio by alternately lifting method, in order to achieve the purpose of transformation of existing bridges.