An electromagnetic bridge anti-seismic and anti-fall beam device

Abstract

The invention relates to an electromagnetic bridge anti-seismic anti-fall beam device, and relates to the field of bridge anti-seismic control. Including block 1 and block 2, which are respectively fixed at the left and right ends of the cover beam, and are integrated with the cover beam; four coils, of which coil 2 and coil 3 are fixed on the left and right sides of the main beam before pouring, And the second coil and the third coil are respectively connected with the first steel plate and the second steel plate; the first coil and the fourth coil are placed in the first stopper and the second stopper; the third steel plate, the fourth steel plate and the fifth steel plate are pre-buried on the surface of the cover beam. When the main beam and the stoppers are displaced relative to each other, electromagnetic forces of mutual attraction and repulsion will be generated between the main beam and the two stoppers, so that the main beam and the stoppers cannot collide with each other, thereby reducing the damage of the stoppers and achieving anti-corrosion. The purpose of falling beams; at the same time, the inner coil of the block is used to generate the same suction force on the bridge span structure, which makes the bridge more stable during the opening process and greatly improves the stability of the bridge operation.

Description

technical field [0001] The invention relates to an electromagnetic bridge anti-seismic anti-drop beam device, which belongs to the field of bridge shock absorption control. Background technique [0002] At present, the design and construction of highway bridges in my country has made continuous beam bridges widely used. Since the beginning of the 21st century, my country's high-speed railways have achieved leapfrog development. In the total mileage of high-speed railways, bridges account for a large proportion, among which continuous girder bridges have been widely used. Girder bridges have also been widely used. In continuous beams, in order to limit the lateral displacement of the bridge superstructure, lateral stops are usually set on the cover beam or abutment. Under the action of earthquake, the block not only acts as a lateral limit and prevents the beam from falling, but also ensures the seismic safety of the bearing. [0003] In previous earthquakes, the anti-seismi...

AI Technical Summary

Problems solved by technology

However, at present, domestic bridge workers are still in the stage of perceptual understanding of stoppers, and there are fewer designs and applications of shock-absorbing stoppers and sacrificial stoppers. Seismic codes only use stoppers as a structural measure; However, under the action of horizontal seismic force, the stopper is a component for transmitting and receiving force, so it is inappropriate to design its structure only, and its reasonable design deserves further consideration

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