Steel corrugated plate prefabricated assembled bridges in railroad applications
In some foreign developed countries, steel bellows structure has been commonly used in existing railroads and highways on the span project. The solution has several advantages as follows. (1) The impact on the operation of existing railway lines is reduced to a minimum. The main structure adopts prefabricated assembled structure, the plates are processed in the factory, and after the pieces are l
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In some foreign developed countries, steel bellows structure has been commonly used in existing railroads and highways on the span project. The solution has several advantages as follows.
(1) The impact on the operation of existing railway lines is reduced to a minimum. The main structure adopts prefabricated assembled structure, the plates are processed in the factory, and after the pieces are laminated, they are transported to the construction site by car, then assembled into a whole on site, and lifted onto the expanded foundation by car crane. There is no need to limit the speed of the existing railway line.
(2) Fast construction speed. Using prefabricated assembly construction process, than the traditional concrete bridge span program can shorten 50% of the construction period.
(3) The cost of the project is low. Traditional bridges require multiple span prefabricated structures, using this solution, only one span is required, the project cost savings of more than 40%. The structure height is small, which can reduce the wiring length and further save the project cost.
(4) Good durability. The use of mature galvanized construction technology, the service life of 100 years.
(5) Low carbon and environmental protection. In response to the national policy call, low-carbon and environmentally friendly construction materials are used.
The following are some examples of foreign projects
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