Bridge body offset prevention device with pier protecting function

Abstract

The invention discloses a bridge body offset prevention device with a pier protecting function. The bridge body offset prevention device comprises a transversely-arranged first elastic component and further comprises a pressure-bearing component. A cover beam extends upwards along the left end and the right end in the width direction of a bridge body to form an abutting part. One end of the firstelastic component abuts against the abutting part. The other end of the first elastic component abuts against the vertical surface, opposite to the bridge body, of the pressure-bearing component. Thesurface, abutting against the side wall of the bridge body, of the pressure-bearing component is an attaching surface matched with the side wall of the bridge body. The strength of the pressure-bearing component in the width direction of the bridge body is 70-90 % of the strength of a pier in the width direction of the bridge body. According to the bridge body offset prevention device, besides theeffect of preventing the bridge body from offset can be achieved, when offset of the bridge body is extremely large, plastic deformation of the pressure-bearing component occurs, a larger offset space is provided for the bridge body, and pier damage is avoided.

Description

technical field [0001] The invention relates to the technical field of bridge engineering construction, in particular to a bridge girder anti-deviation device with a bridge pier protection function. 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...

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Problems solved by technology

[0004] However, in the above-mentioned patented technology, the anchor plate is installed on the lower surface of the beam body, and is connected with the beam body by a vertically arranged threaded connector. The lateral load, the threaded connection will be subject to huge shear force, easy to deform and damage, thus losing the function of preventing bridge offset

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