Large-span bridge beam end telescopic structure suitable for high-speed maglev traffic

Abstract

The invention discloses a large-span bridge beam end telescopic structure suitable for high-speed maglev traffic, and the structure comprises a front-end track beam, a plurality of middle track beams and a rear-end track beam which are arranged in sequence; the lower portions of the middle track beams are connected with the main bridge through movable supports. The front-end track beam, the middle track beam and the rear-end track beam are connected in series through elastic devices; the front end of the front-end track beam is connected with an approach bridge through a fixing support, and the tail end of the rear-end track beam is connected with a main bridge through a fixing support. The invention has the beneficial effects that the elastic device and the movable support are arranged between the track beams of the main bridge, so that the beam end large displacement of a large-span bridge caused by temperature change can be converted into a plurality of uniform small displacements between the track beams in a telescopic structure, and the problem of stator gap overrun is solved; meanwhile, the good force transmission performance is achieved between the track beams, and the longitudinal stability and displacement consistency of the telescopic structure can be guaranteed.

Description

technical field [0001] The invention belongs to the field of maglev transportation, and in particular relates to a telescoping structure of a beam end of a large-span bridge suitable for high-speed maglev transportation. Background technique [0002] As a point-to-point large-capacity transportation tool, the high-speed maglev transportation system has many advantages such as high speed, safety and comfort, energy saving and environmental protection, etc. It can compete with high-speed rail and civil aviation, cooperate with each other, and promote each other, filling the gap in the operation speed of the three-dimensional transportation system. It will bring certain challenges to the development of traditional transportation methods, form a new market structure, and become a landmark project to promote the construction of a powerful transportation country. [0003] The high-speed maglev transportation system uses a certain length of stator installed on both sides of the tra...

AI Technical Summary

Problems solved by technology

The high-speed maglev stator has strict clearance requirements, and releasing the stator displacement will make the clearance more difficult to control, so the railway telescopic regulator structure cannot be used to solve the above problems

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