Railway ballastless track bridge kerbstone cast-in-situ construction method

Abstract

The present invention belongs to the technical field of ballastless track bridge kerbstone cast-in-situ construction of the passenger dedicated lines and the high-speed railway, and particularly relates to a railway ballastless track bridge kerbstone cast-in-situ construction method. The invention settles the problems of difficult installation, affected bridge appearance and high transportation cost which are likely caused by the prior kerbstone prefabrication construction method. The invention uses a ballastless embedded steel plate on a beam body flange plate, an anti-collision wall and the embedded reinforcement on the ballastless track base for installing the kerbstone cast-in-situ bracket and the formwork system. The railway ballastless track bridge kerbstone cast-in-situ construction method of the invention has the following benefits: effectively used self structure of the beam body as a supporting bearing system, light bracket, reasonable structure, definite bearing, convenient disassembly and assembly, short construction circulation period, and realized safe and quick construction of the kerbstone. Compared with the prefabrication method, the railway ballastless track bridge kerbstone cast-in-situ construction method of the invention has the advantages of keeping the characteristic of disassembly capacity of the kerbstone, increasing the compatibility and compactness of the connection between the kerbstone and the beam body; saving the processes of specially prefabricating the ground and hoisting the product, and simplifying the intermediate transportation link.

Description

technical field [0001] The invention belongs to the technical field of curb stone construction for ballastless track bridges of passenger dedicated lines and high-speed railways, and in particular relates to a cast-in-situ construction method for curb stones of ballastless track bridges of railways. Background technique [0002] With the completion and opening of my country's first passenger dedicated line with ballastless tracks - the Beijing-Tianjin Intercity Railway, passenger dedicated lines with ballastless tracks and high-speed railways that have been built successively include Wuhan-Guangzhou Passenger Dedicated Line, Zhengxi Passenger Dedicated Line, Guangzhou Zhuzhou Intercity Railway, Beijing-Shanghai High-speed Railway, etc. At present, the curbstones of passenger dedicated lines and high-speed railway ballastless track bridges that have been opened or built are all designed to be constructed by prefabricated installation methods. First, steel plates are pre-embedd...

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Problems solved by technology

[0004] In order to solve the problems that the existing prefabricated curb stone construction method may cause installation difficulties, affect the appearance of the bridge, and high transportation costs, the present invention provides a cast-in-place construction method for railway ballastless track bridge curb stones

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