Combined suspended monorail traffic track beam and its processing technology

Abstract

The invention discloses a combined overhead monorail traffic track beam. The combined overhead monorail traffic track beam comprises a first track beam body and a second track beam body, the first track beam body and the second track beam body are combined to form a whole track beam main body. The first track beam body and the second track beam body both comprise a track beam web plate, a track beam top inner flange, a track beam bottom inner flange and a track beam bottom outer flange. The first track beam body and the second track beam body are both formed through rolling. According to the combined overhead monorail traffic track beam which is conveniently constructed, transported and installed on site and a processing technology thereof, the appearance dimension is high in precision, the flatness of the inner section of the track beam is guaranteed, a train is not prone to turbulence in the travelling process, and the comfort level is high. By changing the structural form of the track beam main body, the processing and manufacturing modes can be changed, the processing and manufacturing efficiency is improved, the track beam is high in formation precision, and the quality can be effectively guaranteed.

Description

technical field [0001] The invention relates to the field of rail traffic, in particular to a combined suspension monorail rail beam and a processing technology thereof. Background technique [0002] The suspended monorail transportation system is the sky rail train. The track is above the train and supported in the air by steel or cement columns. Since the ground traffic is moved to the air, urban traffic problems can be alleviated without expanding the city's existing road facilities. And because it only moves the track into the air, instead of lifting the entire road into the air like elevated light rail or riding monorail, it overcomes the disadvantages of other rail transit systems and has many outstanding features and advantages in terms of construction and operation. . Although suspended monorail traffic has many advantages, there are mainly the following difficulties in the manufacture of existing suspended monorail traffic track beams: [0003] (1) If the existin...

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Problems solved by technology

[0003] (1) If the existing track girder adopts reinforced concrete prefabricated structure, its mass is relatively large, construction, transportation and on-site installation are difficult, the requirements for hoisting machinery used are relatively high, construction cost is high, and construction safety risks are relatively large; through The reinforced concrete structure prefabricated by formwork has poor appearance and dimensional accuracy, and it is difficult to ensure the flatness of the inner section of the track beam, which leads to bumpy trains and poor comfort during travel

[0004] (2) The main body of the existing track beam is in the form of a closed section with the bottom disconnected. It is formed by welding steel plates. It is formed by cutting the steel plates into strips and assembling and welding the strips. The welding process is large and the manufacturing efficiency is high. Low, large welding deformation, poor forming accuracy of track beams, and difficult to guarantee quality; at the same time, the shape of the transverse stiffener is irregular, resulting in a large loss of cutting and blanking of the stiffener, and serious cost waste. The connection welding of the transverse stiffener and the main box There are many intersecting and overlapping areas between the seam and the main body of the track beam, which may easily cause accumulation of welds and affect the quality of the joints. Welding holes will increase the blanking loss of the stiffener, and the welding seam is discontinuous, and the welding efficiency is extremely low

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