A Relatively Movable Track-Track Bed Combined System

Abstract

The invention is a relatively movable track-track-bed combination system used in conjunction with a seismic-isolation railway station building. The invention is composed of three parts: a telescopic track, a telescopic track supporting device and an overlapping track bed. The telescopic rail of the present invention can expand and contract when an earthquake occurs, and has the advantages of not affecting the movement of the shock-isolation layer and causing no derailment of the train; the telescopic rail support device of the present invention is placed in the vertical isolation joint, The track of the vertical isolation joint plays a supporting role; the overlapping type ballast bed described in the present invention can undergo relative movement without affecting its normal use. The invention can solve the problem that the track and the track bed cannot move relative to each other when an earthquake occurs in the traditional track-ballast bed system, and enables the upper structure of the shock-isolation layer to move freely. It has the characteristics of simple structure and convenient maintenance and repair, and is especially suitable for subway stations and railway stations. Building structures with tracks and seismic isolation requirements.

Description

technical field [0001] The invention belongs to the field of rail traffic, and in particular relates to a relatively movable track-track bed combination system which can be used relative to a shock-isolated railway station building. Background technique [0002] Seismic isolation technology is a kind of passive control technology. Usually, a seismic isolation layer is set in the building structure, and the building structure is divided into three parts: the lower structure, the seismic isolation layer and the upper structure. When an earthquake occurs, the seismic energy is transmitted from the lower structure to the upper structure and passes through the isolation layer. The seismic energy is absorbed by the deformation of the isolation layer, and the seismic effect of the upper structure and the deformation of the isolation part are controlled, thereby greatly reducing the impact of the earthquake on the seismic effect. The influence of the superstructure makes the superst...

AI Technical Summary

Problems solved by technology

[0005] Purpose of the invention: Aiming at the technical problems existing in the above-mentioned traditional track-ballast bed system, a track-ballast bed combination system that can be used in conjunction with the seismic isolation railway station is proposed, which can effectively solve the problem that the traditional track-ballast bed system cannot The problem of relative motion

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