Column pier type bridge anti-shifting device and column pier type bridge anti-shifting method

Abstract

The invention discloses a column pier type bridge anti-shifting device. The column pier type bridge anti-shifting device is characterized by comprising two groups of beam body fixing assemblies which are arranged on left and right sides of the lower surface of a beam body along the width direction, wherein each beam body fixing assembly comprises an anchoring bottom plate, and the anchoring bottom plate is arranged along the width direction of the beam body and is anchored and connected onto the beam body; each anchoring bottom plate is internally provided with a displacement following plate which is vertically arranged downward along the longitudinal direction of the beam body; an elastic component is horizontally arranged between lower sides of the two displacement following plates in the left-right direction; and the elastic component takes a bridge pier below the beam body as the mounting supporting foundation and is mounted on a hoop fixed on the bridge pier. The invention further discloses a column pier type bridge anti-shifting method adopting the device. The column pier type bridge anti-shifting device has the advantages that the structure is simple, the construction is convenient, the horizontal restraining on a beam body of the bridge can be realized very well, the restraint stress can be released and potential safety hazard is reduced.

Description

technical field [0001] The invention relates to the field of highway bridge engineering, in particular to a pier type bridge anti-deviation device. Background technique [0002] At present, most small and medium-sized bridges in service in my country (especially curved continuous box girder bridges) are prone to large lateral deviations of the main girders under the effects of expansion joints stuck, temperature effects, and eccentricity of static and dynamic loads. And the offset gradually accumulates over time. These bridges with deflected beams have seriously threatened the safety of road operations, and it is very necessary to carry out targeted repairs and reinforcements. At the same time, for the research on the phenomenon of bridge deviation, it is necessary not only to study the causes of beam deviation and the method of correcting construction and monitoring process, but also to find a way to fundamentally solve the problem of beam deviation—that is, measures to pre...

AI Technical Summary

Problems solved by technology

Although the above method reduces the damage of the bridge structure to a certain extent, it has the same problem as method 2, that is, it is generally only applicable to areas with peak ground acceleration (Ag≤0.15g)

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