Track system floating vibration isolation structure

Abstract

A floating vibration isolation structure for a track system is composed of a bottom floating building vibration isolation system, an upper layer steel spring floating slab ballast bed vibration isolation system and a damping limiter. The bottom floating vibration isolation system consists of foundation rigid mass block and floating rubber vibration isolation pad. The bottom floating vibration isolation system consists of foundation rigid mass block and floating rubber vibration isolation pad. The floating rubber vibration isolation pad is set on the tunnel shield Between the inner wall of the structural tube and the rigid mass block of the foundation; the upper steel spring floating slab track bed vibration isolation system is composed of a rigid slab track bed and an adjustable preload damping steel spring isolator, and the adjustable preload damping steel spring isolator is installed On the basic rigid mass block, the track is installed on the rigid slab track bed, and the adjustable preload damping steel spring vibration isolator has the function of adjustable preload. It can control the vibration caused by the subway and at the same time meet the regulations of the subway line for the dynamic sinking amount of the train when it is fully loaded, especially in special areas that are sensitive to vibration, and can more effectively meet the vibration isolation requirements.

Description

technical field [0001] The invention relates to a vibration isolation device, in particular to a floating vibration isolation structure for a track system. Background technique [0002] Because urban rail transit has the advantages of high speed, large passenger capacity, high safety and reliability, and no smoke emission pollution, it has been adopted as the main traffic line by many large and medium-sized cities at home and abroad in recent years to alleviate the traffic pressure brought about by urbanization. However, with the increase of train speed in our country, the vibration and noise problems of railways have become more and more prominent. If no effective measures are taken, it will not only reduce the comfort of passengers, but also reduce the service life of various parts of the vehicle, and also affect the The quality of work and life of residents along the railway and the life span of various equipment and buildings. Therefore, the vibration and noise caused b...

AI Technical Summary

Problems solved by technology

So far, the effect of spring floating slab track bed is better, but it still cannot meet the requirements in special areas sensitive to vibration

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