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秦沈客运专线的兴建,铁路混凝土梁重量增大到400～600t,为此我国制造出了相应的400～600t的架桥设备。2005年,随着郑西、武广、石太、京津、合武、合宁、甬台温、温福和福厦等若干铁路客运专线陆续开工,铁路双线整孔箱梁最大重量增加到900t,各铁路施工单位研制使用了辅助导梁式、下导梁式、悬臂式900t架桥机。广珠城际铁路客运专线于2006年全线开工,为满足施工生产对机械的要求,2006年7月中铁三局集团决定设计研制适合广珠铁路客运专线使用的400t架桥机。广珠城际铁路客运专线采用箱形梁,其梁型为20 m、24 m、30 m和
The construction of Qin-Shen passenger dedicated line, the weight of the railway concrete beam increased to 400 ~ 600t, for which China made the corresponding 400 ~ 600t bridge equipment. In 2005, with the commencement of a number of passenger dedicated lines such as Zhengxi, WuGuang, ShiTai, Beijing-Tianjin, HeWu, HeNing, Yongtaiwen, Wenfu and Fuxia, the maximum weight of the double- To 900t, the railway construction unit developed using auxiliary beam, the next beam, cantilevered 900t bridge machine. The Guangzhou-Zhuhai Intercity Passenger Dedicated Line started operation across the board in 2006. In order to meet the mechanical requirements for construction and production, the China Railway Third Directorate decided in July 2006 to design and develop a 400t erecting machine suitable for the Guangzhou-Zhuhai Railway Passenger Dedicated Line. The Guangzhou-Zhuhai Intercity Railway Passenger Dedicated Line uses box girders with beam sizes of 20 m, 24 m and 30 m