Joggle joint type bearing rail beam structure for middle and low-speed magnetic suspension traffic engineering low line

Abstract

The invention discloses a joggle joint type bearing rail beam structure for a middle and low-speed magnetic suspension traffic engineering low line. The joggle joint type bearing rail beam structure comprises reinforced concrete supporting structures; each reinforced concrete supporting structure comprises a reinforced concrete girder structure and a reinforced concrete bottom plate; each reinforced concrete bottom plate comprises a bottom plate main body structure, a tenon and a mortise; round corners are arranged on each tenon and each mortise, so that the tenon can rotate in the mortise, therefore, the adjacent two reinforced concrete bottom plates can rotate relative to each other, and further, the reinforced concrete girder structures borne by the two reinforced concrete bottom plates can also rotate relative to each other. According to the joggle joint type bearing rail beam structure disclosed by the invention, as the tenons and the mortises are arranged to form tenon connection, settlement and dislocation caused between the adjacent reinforced concrete girder structures due to different foundation treatment measures are avoided, so that the smoothness requirements for a magnetic suspension traffic engineering overhead structure and a low line transition section F rail are effectively satisfied.

Description

technical field [0001] The invention belongs to the technical field of low-lying lines of medium and low-speed maglev traffic engineering, and more specifically relates to a rail-supporting beam structure of low-lying lines of 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 operation, and they...

AI Technical Summary

Problems solved by technology

Different from the rail-bearing girders of elevated lines installed on bridges where the settlement is easy to control, the foundation under the rail-bearing girders is a geotechnical structure composed of rock and soil. Affected by factors such as terrain and geological conditions, the quality is relatively difficult to control. Therefore, the load and Under the action of various natural factors, uneven settlement is easy to occur, and the internode joints between adjacent rail bearing beams will inevitably have staggered settlements, which will affect the smoothness of the F rail, and may even cause staggered and deformation of the F rail. If it is serious, it will affect the normal operation of the maglev vehicle

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