Shock absorption and energy dissipation anti-falling beam device for railway bridge

Abstract

The invention discloses a shock absorption and energy dissipation anti-falling beam device for a railway bridge. The shock absorption and energy dissipation anti-falling beam device for the railway bridge comprises a bottom plate, wherein the bottom plate is connected with at least one limiting slot, all the limiting slots are formed in sequence in the height direction, at least one corrugated plate is arranged in each limiting slot, the vertical cross section of each corrugated plate is in a wave shape, the width of each limiting slot is matched and corresponds to the total width of all the corrugated plates, one ends of all the corrugated plates in each limiting slot are connected to first ends of the limiting slots, the other ends of the corresponding corrugated plates are connected tomovable members, and each movable member is slidably connected with a second end of the corresponding limiting slot. According to the shock absorption and energy dissipation anti-falling beam device for the railway bridge, the energy dissipation members are effectively combined with the anti-falling beam device, so that the anti-falling beam device has remarkable energy dissipation capacity; and the structure form is reasonable and concise, the manufacturing cost is greatly reduced, installation and replacement are convenient, the installation height space is effectively saved under the same energy dissipation capacity, and the bridge structure is effectively protected.

Description

technical field [0001] The invention relates to the technical field of anti-falling beam energy consumption of railway bridges, in particular to a vibration-absorbing energy-consuming anti-falling beam device for railway bridges. Background technique [0002] The anti-falling beam device is the key structure of bridge anti-seismic. It is mainly used to prevent the falling beam caused by the excessive relative displacement between the upper structure and the lower structure. Therefore, the anti-falling beam device is generally used in bridge engineering in earthquake areas. [0003] In the prior art, the anti-fall beam devices of highway bridges in my country generally adopt concrete stoppers, high-strength steel tie rods, high-strength steel cables, etc., while the anti-fall beam devices of railway bridges generally adopt various types based on I-beam processing. However, the anti-fall beam devices of the above-mentioned forms generally have certain limitations, which are spe...

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Problems solved by technology

[0007] The purpose of the present invention is to overcome the lack of earthquake energy dissipation capacity of the existing anti-fall beam stoppers, poor adaptability in high-intensity earthquake areas, and the need to add a separate damper device to consume energy, and the separate damper device not only increases the cost , it is also necessary to consider the space and location of the installation, which complicates the design and other shortcomings, and provides a shock-absorbing and energy-consuming anti-falling beam device for railway bridges

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