Precast beam for rail transit and preparation method

Abstract

The invention relates to a precast beam for rail transit and a preparation method, the precast beam comprises a beam body (1) used as a precast beam main body and an embedded part (2) arranged in the beam body (1), a bearing part used as the precast beam is realized through the beam body (1), and accurate position connection of a specific rail is realized through the embedded part (2), so that the mounting accuracy of the specific rail is improved.

Description

technical field [0001] The invention relates to a prefabricated beam and a preparation method, in particular to a prefabricated beam for rail traffic and a preparation method. Background technique [0002] Rail transit refers to a type of vehicle or transportation system that operating vehicles need to run on a specific track. The most typical rail transit is a railway system composed of traditional trains and standard railways. With the diversified development of trains and railway technologies, There are more and more types of rail transit, not only in long-distance land transportation, but also in short- and medium-distance urban public transportation. Therefore, prefabricated beams for rail transit are an important transportation component. In the existing prefabricated beams used for rail transit, the threaded holes are directly set on the beam body. Since the position accuracy of the threaded holes on the beam body is not high, the installation accuracy of the specific...

AI Technical Summary

Problems solved by technology

[0002] Rail transit refers to a type of vehicle or transportation system that operating vehicles need to run on a specific track. The most typical rail transit is a railway system composed of traditional trains and standard railways. With the diversified development of trains and railway technologies, There are more and more types of rail transit, not only in long-distance land transportation, but also in short- and medium-distance urban public transportation. Therefore, prefabricated beams for rail transit are an important transportation component. In the existing prefabricated beams used for rail transit, the threaded holes are directly set on the beam body. Since the position accuracy of the threaded holes on the beam body is not high, the installation accuracy of the specific track is affected.

[0003] For the carrier of high-speed transportation facilities - track beams, the manufacturing accuracy requirements are more stringent. When faced with a large number of densely distributed embedded parts and high requirements for the embedded position and the uniform flatness of the embedded parts, the conventional The beam body prefabrication method is difficult to meet the design accuracy requirements,

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