Recognition device for transverse torsion of bridge swivel construction

Abstract

Provided is a recognition device for transverse torsion of a bridge swivel construction. The device comprises stair-stepping electrode tubes respectively arranged at two sides of a box beam, wherein the stair-stepping electrode tubes are internally provided with a plurality of detection electrodes of which insertion depths are distributed in stepped appearance, the portion, under each detection electrode, of the corresponding stair-stepping electrode tube is filled with conducting liquid, each stair-stepping electrode tube is further provided with a path electrode frequently immersed in the conducting liquid, the detection electrodes at different insertion depths are respectively connected to external caution lights, the other end of each caution light is connected to a power supply to form a loop, and each loop is provided with a switch; two stair-stepping electrode tubes at the two sides of the box beam form a U-shaped tube structure through a conduit, the liquid levels of the conducting liquid in the two stair-stepping electrode tubes are kept in a same horizontal plane, when the box beam twists and deforms, each liquid level of the conducting liquid in the corresponding stair-stepping electrode tube is correspondingly increased or decreased, so that different caution lights can be caused to illuminate. The recognition device for transverse torsion of the bridge swivel construction has the advantages that the detection difficulty is reduced, and on-site workers can find the cause of the deformation and make corresponding adjustments according to the change of the cautionlights.

Description

technical field [0001] The invention relates to the field of bridge construction, in particular to a lateral torsion recognition device for bridge swivel construction. Background technique [0002] Swivel construction bridges have the characteristics of fast construction and short traffic interruption time, and are suitable for cross-line projects such as overpasses and railways with heavy traffic, and their applications have become increasingly widespread in recent years [1]. During the rotation process, the deviation, inclination, lateral torsion, etc. of the bridge structure caused by eccentric loads or other uneven rotation factors will affect its overall stability [2]. [0003] At present, the lateral torsional deformation of bridge swivel construction is generally measured and controlled by total stations and displacement meters [3]. During the swivel construction process, the measuring points of the total station arranged on the box girder rotate with the girder body...

AI Technical Summary

Problems solved by technology

During the swivel construction process, the measuring points of the total station arranged on the box girder rotate with the girder body, making monitoring difficult and unable to reflect the lateral torsional deformation of the structure in time[4]

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