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

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...

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

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