Track damping support

Abstract

The invention discloses a track vibration damping support device, which relates to the technical field of track vibration damping, comprising an upper connecting plate assembly, a lower connecting plate, an elastic vibration damping assembly and a damper, wherein the upper connecting plate assembly is used for supporting a track beam; the lower connecting plate is used for connecting with the bridge main body; the two ends of the elastic damping assembly in the vertical direction are respectively connected with the upper connecting plate assembly and the lower connecting plate, and the elasticdamping assembly can be elastically deformed at least in the vertical direction; at least one damper is arranged on both sides of the elastic damping assembly, the upper end of the damper is connected with the upper connecting plate assembly, the lower end of the damper is connected with the lower connecting plate, and the damper at least limits the vertical displacement between the upper connecting plate assembly and the lower connecting plate. The rail vibration damping support device has good vibration damping and noise reduction effect, and can reduce the vibration displacement of the rail, and ensure the stability and safety of the running of the rail vehicle.

Description

technical field [0001] The invention relates to the technical field of rail vibration reduction, in particular to a rail vibration reduction support device. Background technique [0002] With the rapid development of rail transit, the problem of environmental vibration caused by rail transit has attracted more and more attention. The problem of environmental vibration caused by rail transit has always plagued the owners of residences or office buildings along the line. There have also been many problems at home and abroad. Various anti-vibration measures have been adopted and have achieved certain anti-vibration effects. There are also a variety of anti-vibration and noise reduction products at home and abroad, including anti-vibration fasteners, anti-vibration sleepers, and shock absorbers under light track beams, which are used for underground tracks. Traffic floating plate vibration damping track structure, etc. The ubiquitous problem is that the damping effect of vibrat...

AI Technical Summary

Problems solved by technology

The ubiquitous problem is that the damping effect of vibration-damping fasteners is relatively limited. The usual construction form of vibration-damping sleepers is a boot structure, that is, during the construction stage, concrete sleepers are placed in rubber sleeves, and tracks are arranged on the upper part of the sleepers. The material realizes the vibration isolation between sleepers and the lower structure. This method is relatively cumbersome to construct. Since the boots are bonded with cast-in-place concrete, when the boots are aged or damaged, they are not replaceable. The floating slab The weight of the track is heavy, not suitable for track bridges

The method of installing a shock absorber under the light track beam is to use a light track beam on the upper part, and install a shock absorber under the track beam. Through the setting of the shock absorber, the transmission of the vibration on the upper track and the track beam to the foundation is blocked. The form has many technical advantages such as flexible layout, wide application range, and convenient construction. However, the damping provided by the shock absorber is relatively limited, and it cannot meet the limit requirements of track displacement, which affects the stability and safety of rail vehicles.

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