Inter-node limiting structure of rail-bearing beams in single-track section of low-speed maglev traffic project

Abstract

The invention discloses an inter-bearing rail beam limit structure of a single-line section of a middle-low speed magnetic levitation traffic engineering low-arranged line. The limit structure comprises below-bearing rail beam roadbed filling, under-bearing rail beam bedding layers, two adjacent bearing rail beams, a vertical slab staggering prevention butt strap, horizontal slab staggering prevention bosses and bearing rail beam backfill packing. The vertical slab staggering prevention butt strap is fixedly arranged on the below-bearing rail beam roadbed filling and the lower end of the vertical slab staggering prevention butt strap extends into the below-bearing rail beam roadbed filling. According to the invention, the slab staggering prevention reinforced concrete butt strap is arranged on the position between the bearing rail beams, and the bearing rail beams are arranged on the same reinforced concrete slab staggering prevention plate having certain stiffness, so that the problem of the unsmooth rail surface caused by differential settlement of the foundations below the bearing rail beams is effectively avoided.

Description

technical field [0001] The invention belongs to the field of medium and low-speed maglev low-set lines, and more specifically relates to an internode limiting structure of a rail-bearing beam in a single-track section of a low-rise line of a medium-low-speed maglev traffic engineering. Background technique [0002] Medium and low-speed maglev rail transit is a new type of transportation. At present, there are few research results at home and abroad, and there are even fewer lines in operation around the world. At present, there are only the commercial operation line of the medium and low speed maglev railway in Japan in March 2005-Eastern Hills Line and the commercial operation line of the medium and low speed maglev railway in South Korea in June 2014. At present, China's medium and low-speed maglev transportation only has the National University of Defense Technology test line, the Qingchengshan test line, and the Tangshan test line, but there are no official lines in oper...

AI Technical Summary

Problems solved by technology

[0004] In order to prevent excessive temperature stress and uneven settlement, the traditional rail-bearing beam structure generally adopts expansion joints of 10-30m per section. Due to the influence of various factors, the quality is relatively difficult to control, so it is easy to produce uneven settlement under the action of load and various natural and various natural factors. It is inevitable that there will be inconsistent post-construction settlement between adjacent rail bearing beams, resulting in the occurrence of Wrong platform, which will affect the smoothness of F track, and may even cause problems such as wrong platform and deformation of F track, which will affect the normal operation of maglev vehicles in severe cases

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