Normal-conduction high-speed magnetic levitation beam end butt strap structure

Abstract

The invention belongs to the technical field of normal-conduction high-speed magnetic levitation bridge beam seam devices, and particularly relates to a normal-conduction high-speed magnetic levitation beam end butt strap structure which comprises a T-shaped butt strap and two continuous beam bodies. The T-shaped butt strap comprises a T-shaped butt strap track plate beam and a T-shaped butt strap small pier stud connected with the bottom surface of the T-shaped butt strap track plate beam; the two ends of the T-shaped butt strap track plate beam are arranged on the two continuous beam bodies respectively, and the T-shaped butt strap small pier stud is arranged between the two continuous beam bodies. Clamping elastic steel plates are fixed to the two sides, in the transverse bridge direction, of the T-shaped butt strap small pier stud, beam end clamping grooves are formed in the beam end side faces, close to each other, of the two continuous beam bodies, and the clamping elastic steel plates on the two sides of the T-shaped butt strap small pier stud are clamped in the beam end clamping grooves of the two continuous beam bodies respectively. Equalization, stability and reliability of the parting and the stability of the T-shaped butt strap can be guaranteed, the running comfort of the maglev train is improved, and the safety and stability of high-speed running are improved.

Description

technical field [0001] The invention belongs to the technical field of girder gap devices of a normally-conducting high-speed maglev bridge, and in particular relates to a structure of a slab at the end of a normally-conducting high-speed maglev beam. Background technique [0002] Conventional high-speed maglev has extremely high requirements on the smoothness of the long spindle track. Relevant studies have shown that when the maglev bow-shaped frame passes through the pier top, it is greatly affected by the gap change and the beam end angle, and the electromagnet vibrates greatly. The main reason is that The track irregularity caused by it is the bottleneck restricting the operation of high-speed trains. Therefore, reducing the variation of the gap between the beams and the unevenness of the corners of the beam ends plays a very important role in improving the running of high-speed maglev trains with conventional guidance. [0003] In order to overcome the problem of the b...

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Problems solved by technology

[0003] In order to overcome the problem of the beam end angle, there is currently a beam end strapping plate at the beam joint of the two beam bodies. Although the part of the smoothness problem caused by the beam end angle is reduced, the weight is too small, and it will be affected by the driving force. The effect produces a large vibration response, and there is an unstable phenomenon of jumping. If things go on like this, the rails in the lamination area at the beam end will have problems such as loose buckle rails; and the existing lamination technology cannot ensure equal and stable joints. It is difficult to guarantee the high precision requirements below the millimeter level

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