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Beam-rail integrated medium-and-low speed maglev track beam

A magnetic levitation track and low-speed technology, applied in tracks, roads, buildings, etc., can solve the problems of complex track structure, difficult installation, waste of materials, etc., achieve the application value of large projects, save material consumption, and improve transmission efficiency.

Pending Publication Date: 2019-01-18
CHINA RAILWAY MAGLEV TRANSPORTATION INVESTMENT CONSTR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There are many problems in the low-speed maglev bridge of the prior art: (1) the track structure height is relatively large, the structure height is increased on the bridge and the roadbed, and the tunnel section is increased in the tunnel, which increases the load between the track and the beam operating distance, especially in figure 2 In the case of the superelevation of the curve shown, the support structure not only transmits the gravity load of the vehicle and the track itself, but also bears the transverse shear force, which is easy to be between the steel beam and the bearing platform and between the F rail and the fastener. Faults occur, which affect the safety and reliability of the track beam structure; (2) The track structure is complex, including F rails, steel beams, fasteners, rail bearing platforms and their mechanical connection devices, which is not only difficult to install, but also expensive ; (3) The second-stage load of the track structure is relatively large, resulting in a large amount of engineering work for the bridge structure; (4) In the design of bridge structures, the stiffness and strength provided by the track structure are generally not considered, which wastes materials; (5) F rail is located at On the support of the steel beams with large intervals, under the action of the vehicle load, the F rail undergoes continuous vertical bending deformation, resulting in short-wave irregularities on the rail surface

Method used

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  • Beam-rail integrated medium-and-low speed maglev track beam

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Embodiment Construction

[0033] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below may be combined with each other as long as they do not constitute a conflict with each other.

[0034]Aiming at a series of problems in the low-speed maglev track beam structure in the prior art, the present invention provides a low-speed maglev track beam with beam-rail integration, which symmetrically arranges a beam-rail integrated structure on the top of the concrete beam. The beam-rail integrated structure includes F rails and connection devices, wherein the connection devices can be ...

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Abstract

The invention discloses a beam-rail integrated medium-and-low speed maglev track beam, which comprises a concrete beam (1), an F rail (2) and a connecting device, wherein that connecting device comprises a bolt (3), a first connector (6), a second connector (7) and a shear nail (8), and a plurality of stiffened plates (9) are arrange on a side of the T-shaped connecting structure adjacent to the Frail (2) along the length direction of the rail beam. The rail integration medium and low speed maglev rail beam eliminates the existing steel beam, fasteners, bearing platform and support structureof the medium and low speed maglev rail beam, greatly reduces the height of the whole rail beam structure, and the load such as car body movement borne by the F rail directly passes through the beam.Transfer of rail-integrated structure, in addition to the super-high section of the beam in the curve. The rail-integrated structure directly bears the transverse shear force caused by the rail inclination, which not only improves the performance of the rail, but also improves the stability of the rail. The transfer efficiency of the force between the beams, and effectively avoid the load caused by rail structural failure between beams.

Description

technical field [0001] The invention belongs to the technical field of maglev rail transit, and more specifically relates to a beam-rail integrated medium-low speed maglev rail beam. Background technique [0002] Medium and low-speed maglev transportation is a new type of rail transportation mode optimized and innovated on the basis of traditional railway technology after more than 100 years of development. Medium and low-speed maglev transportation has the advantages of low noise, low vibration, low radiation, low cost, strong climbing ability, and small turning radius. It not only saves a lot of land resources, but also provides safe, reliable, energy-saving and environmental protection for the development of urban traffic. The new choice is a new development direction in the field of urban transportation. In recent years, great achievements have been made in the theoretical research and engineering application of medium and low speed maglev transportation at home and abr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01B25/30
CPCE01B25/30
Inventor 龚俊虎谢海林鄢巨平张家炳
Owner CHINA RAILWAY MAGLEV TRANSPORTATION INVESTMENT CONSTR CO LTD
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