U-shaped damping beam falling preventing device

Abstract

The invention provides a U-shaped damping beam falling preventing device. The device comprises an upper connecting plate and a lower connecting plate which are arranged in parallel. One end of the upper connecting plate is connected with one end of the lower connecting plate through a U-shaped plate. The upper connecting plate is connected with a first buried plate pre-buried in the bottom of a beam body through a plurality of first bolts, and the lower connecting plate is connected with a second buried plate pre-buried in the top of a pier through a plurality of second bolts. According to the U-shaped damping beam falling preventing device, beam falling can be effectively prevented, and the U-shaped damping beam falling preventing device has the beneficial effects of being convenient to install and fast to replace.

Description

technical field [0001] The invention relates to an anti-fall beam device, in particular to a U-shaped damping anti-fall beam device in the technical field of bridge structures. Background technique [0002] my country is an earthquake-prone country, especially in the three seismically active regions of North China, Northwest China, and Southwest China. There are examples of beam damage caused by earthquakes. The damage caused by falling beams is bound to cause serious traffic interruption, delay rescue, and cause huge losses. In my country's seismic design code, it is stipulated that in order to prevent vertical and horizontal beams from falling, stoppers, anchor bolts, steel brackets and other anti-falling beam structures are often adopted. [0003] The existing anti-fall beam measures are mainly to set brittle concrete stoppers at a certain distance from the beam body through structural measures, so as to achieve the purpose of controlling the lateral displacement and lon...

AI Technical Summary

Problems solved by technology

The disadvantage of this measure is that the beam body will collide with the block under the action of an earthquake. When a high-intensity earthquake strikes, the brittle concrete block is prone to brittle shear failure and fails, resulting in the failure of the bridge falling beam, and when the brittle concrete block When the concrete block needs to be replaced due to damage and failure, it is not easy to operate

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