Correction and reset method of bridge pier tilted

Abstract

The invention discloses a deviation correcting and resetting method for an inclined bridge pier. The method comprises the steps that 1) various kinds of acting force enabling the bridge pier to be inclined are eliminated; 2) the upper structures of all bridge spans in the direction opposite to the deviation correction direction of the bridge pier to be corrected are temporarily fixed and bound to form a stress whole; 3) a jacking device is arranged at the top of the bridge pier to be corrected, and an upper beam body is jacked by the jacking device; 4) a temporary sliding support is arranged in a clearance formed through jacking in the step 3); 5) a counterforce frame and a deviation correcting jack are arranged between the bridge pier to be corrected and the beam body on the bridge pier to be corrected, the upper beam body is transversely pushed by the deviation correcting jack, and the bridge pier to be corrected is pushed to a vertical position through counterforce generated by pushing the upper beam body; 6) the bridge pier is restored finally. The problem of transmitting and bearing high deviation correcting force is solved, meanwhile, deviation correction thrust is reduced exponentially, construction is convenient, the construction period is short, and cost is low.

Description

technical field [0001] The invention relates to bridge maintenance technology, in particular to a deflection correction and reset method for inclined girder bridge piers, and belongs to the technical field of bridge maintenance and reinforcement construction. Background technique [0002] Among the existing bridge structures, there are girder bridges, arch bridges, cable-stayed bridges, suspension bridges and composite structure bridges, among which girder bridges are the most common. During the construction and operation of the girder bridge, the originally vertical pier will appear longitudinal inclination phenomenon, which generally has the following reasons: [0003] 1. The foundation position exerts horizontal lateral pressure on the pier. [0004] For example, some bridge piers need to be buried, but the earth and rock filling is not strictly in accordance with the symmetrical layered construction. During the construction, only the earth on the inner side of the road ...

AI Technical Summary

Problems solved by technology

One of the methods is to set ground anchors on the ground or abutments, and use steel wire ropes or steel strands to cooperate with through-hole jacks to rectify the deflection of bridge piers. However, the construction is difficult, the measures are complicated, and the construction cost is high.

Images