Damper type floating slab track

Abstract

The invention discloses a damper type floating slab track. The damper type floating slab track comprises a shear hinge for connecting a track slab with another track slab, and a spring-viscous damperassembly which is arranged below a steel rail, is arranged in a floating slab and is used for reducing vibration. The damper type floating slab track has the advantages that the spring-viscous damperreplaces a traditional steel spring to serve as a vibration isolation element, parameters of the elastic element are reasonably matched, high-frequency vibration is effectively restrained, low-frequency resonance energy of the track slabs is absorbed, the defect that a steel spring floating plate track restrains low-frequency vibration is overcome, and the vibration isolation frequency range of the floating slab track is expanded; and the damper assembly is convenient to mount, dismount and overhaul and maintain in the later period; and the damper converts kinetic energy to thermal energy fordissipation, is simple in structure and stable in motion when doing reciprocating motion.

Description

technical field [0001] The invention relates to the technical field of rail transit vibration reduction and noise reduction, in particular to a damper-type floating slab track. Background technique [0002] The contradiction of urban land resources is becoming more and more prominent. When selecting urban rail transit lines, it is inevitable to pass through vibration-sensitive areas such as residential areas, ancient buildings, and scientific research institutions with precision instruments. The environmental vibration generated by urban rail transit operating trains will endanger the physical and mental health of residents along the line, cause damage to ancient buildings, and affect the normal work of precision instruments. Effective vibration reduction measures are urgently needed to reduce the harm caused by environmental vibration. [0003] The floating slab track satisfies the needs of vibration reduction in special areas and is widely used in my country. Traditional ...

AI Technical Summary

Problems solved by technology

Among them, the integrally supported rubber floating slab track has the advantages of simple structure, small construction error, fast speed, uniform stress on the inverted arch and ballast bed, large supporting area, better resistance to the longitudinal and lateral forces of the track, and low cost, etc. Advantages, but there are also problems such as unstable performance and poor durability

CN2019113963522 discloses a shock-absorbing subway track device, which includes a steel rail, a support plate, a first base, a second base, an inner spring, an outer spring, and a liquid return channel, etc. Its structure is extremely complicated, its stability is poor, and its cost is high ;The track belongs to high-frequency reciprocating vibration, and the lengthy bending return channel leads to a long response time of the piston, which cannot achieve the expected damping effect; the rail is placed on the damping device through the support plate, lacking fasteners, sleepers or track plates, etc. A necessary part of the track, poor applicability

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