Anti-climbing limit device for planar curved beam bridge

Abstract

The invention relates to a plane curve girder bridge creeping-preventing limiting device which is composed of an anchoring steel plate, a limiting steel plate and a limiting assembly from top to bottom. The anchoring steel plate is composed of an upper anchoring plate and a stiffening rib plate, the limiting assembly is of a detachable structure and is composed of an anchor plate connected with a pier stud, an inner steel plate and an outer steel plate from inside to outside, an inner sliding block and an outer sliding block are placed at the top face of the inner steel plate and the top face of the outer steel plate, and corrosion resistant plates and friction pairs are arranged between the inner sliding block and the inner steel plate, the outer steel plate and the limiting steel plate and between the outer sliding block and the inner steel plate, the outer steel plate and the limiting steel plate. A top face steel plate and a dustproof cover are installed on the top faces of the inner steel plate and the outer steel plate. The plane curve girder bridge creeping-preventing limiting device can be connected in a spliced mode, and the requirements of being capable of being detected, easy to maintain, capable of being maintained and capable of being replaced are met. The plane curve girder bridge creeping-preventing limiting device is light in weight and small in influence on pier stud bearing capacity. Meanwhile, the plane curve girder bridge creeping-preventing limiting device has the advantages of being simple in structure, low in engineering construction cost, convenient to construct, suitable of factory mass production, capable of being installed in the site in a bolted mode, free of influences on bridge floor traffic, attractive in appearance and the like.

Description

technical field [0001] The invention relates to an anti-creep limit device for plane curved girder bridges, in particular to planes where the middle supports are designed as two-way movable supports and fixed supports, and there are hidden dangers and diseases of lateral creep, or the bearing capacity of the transverse fixed supports is insufficient. A curved girder bridge, a lateral anti-creep limit device used in the maintenance of lateral creep defects. Background technique [0002] With the rapid development of bridge construction at home and abroad, the application of curved girder bridges in urban overpasses is becoming more and more extensive. Curved girder bridges have good adaptability to various complex terrain and features. Especially in the overpass bridge in the city, its beautiful lines are intertwined, which can not only improve the traffic capacity of the intersection, but also a beautiful landscape in the city. [0003] In recent years, some bridges built ...

AI Technical Summary

Problems solved by technology

This method needs to redesign the stress system of the bridge, and its implementation is very difficult, and the main girder needs to be lifted synchronously; the continuous beam is not properly controlled during the synchronous jacking process, and the beam body is prone to cracks, and necessary transverse temporary Limiting measures, the lifting of the main girder will have a serious impact on the traffic on and off the bridge

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