Deviation correcting and resetting method for transverse deviation of beam bodies of beam bridge

Abstract

The invention discloses a deviation correcting and resetting method for transverse deviation of beam bodies of a beam bridge. The method comprises the steps that 1) horizontal transverse action force enabling the beam bodies to deviate is eliminated; 2) a whole binding beam body of a unit where the deviated beam bodies are located is temporarily fixed and bound to form a stress whole, and meanwhile the beam bodies of the unit and beam bodies of adjacent bridge spans on the two sides of the beam bodies are disconnected; 3) jacking devices are arranged at the tops of all piers corresponding to the temporarily fixed and bound deviated unit, and the corresponding deviated beam bodies are jacked synchronously; 4) a temporary sliding support is arranged in a clearance formed through jacking in the step 3); 5) reaction frames and deviation correction jacks are arranged on support cushion stone at the tops of the piers corresponding to all the beam bodies of the deviated unit, and all the deviation correction jacks transversely push the beam bodies to be reset; 6) after deviation correction is carried out in place, the beam bodies are finally rehabilitated. The deviation correction push thrust of the method is reduced exponentially, the damage of subsidiary stress generated in the deviation correction process to the structure of the beam bodies is avoided, 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 method for rectifying and resetting beams and bridges after lateral deviation, 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 beam bridge, the superstructure girder body of the originally correctly positioned concrete girder bridge has a lateral displacement phenomenon. Although the beam body is usually connected by several spans to form a joint, when the lateral deviation occurs, the distances of the lateral deviation of the beam body with different spans of the joint are often different. Generally, there are the following reasons for lateral deviation: [0003] 1....

AI Technical Summary

Problems solved by technology

However, at present, the lateral deviation of the beam body is rare, and there are few researches on the treatment methods. Therefore, there are no effective correction measures, which makes the correction and reset of the lateral deviation of the beam bridge body a blank in the research

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