Fall prevention beam buffer device and method, and fall prevention beam buffer system in air rail

Abstract

A fall prevention beam buffer device comprises a buffer assembly with an elastic buffer function, and a chain and is characterized in that one end of the buffer assembly is connected with one end of the chain; the other end of the buffer assembly is connected with a beam body fixedly; and the other end of the chain is fixedly connected with a pier column close to the beam body, the end, fixedly connected to the beam body, of the buffer assembly and the end, fixedly connected to the pier column, of the chain are not at the same height, and thus the fall prevention beam buffer device is inclined between the beam body and the pier column. Through the fall prevention beam buffer device, longitudinal and transverse fall prevention beams can be achieved, collision between beam bodies can be buffered, the beam body collision damage rate is lowered, jumping of the beam bodies in the gravity direction is reduced, and separation of an upper support part and a lower support part between the beam bodies and pier columns is prevented. The invention further provides a fall prevention beam buffer device method, and a fall prevention beam buffer system in an air rail.

Description

technical field [0001] The invention relates to an anti-falling beam buffer device, which is used for preventing beams from falling off and buffering collisions between beams during an earthquake. The invention also relates to an anti-falling beam buffering method and an anti-falling beam buffering system in an aerial track. Background technique [0002] my country is one of the countries with the strongest seismic activity and the most severe earthquake disasters in the world, especially in the three seismically active regions of North China, Northwest China, and Southwest China, where there have been instances of falling beams caused by earthquakes. Beam falling is one of the bridge earthquake disasters with the highest frequency, the most destructiveness and the most difficult repair. The damage forms of the earthquake to the bridge superstructure include falling beam damage, collision damage, and support deviating from its guide groove or bottom basin, resulting in los...

AI Technical Summary

Problems solved by technology

In the above scheme, the anti-fall beam system is divided into three parts. The square energy-dissipating anti-fall beam and the sliding tube connecting rod device are used for the anti-fall beam, and the anti-collision plate is used to prevent the collision between the beams. Its structure is complex and difficult to install.

[0006] Therefore, most of the anti-falling beam devices in the prior art only possess the anti-falling beam function in the longitudinal bridge direction, and do not have the function of restricting the movement of the beam body along the transverse bridge direction or the direction of gravity. The limiting function of the weight direction is also realized independently through several separate parts

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