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介绍了209HS转向架焊接构架的结构形式，以及设计过程中对降低自重、提高疲劳强度和焊接处理等问题的考虑；对构架的静强度和疲劳强度，着重用UIC标准进行了评定。
The structure of welded frame of 209HS bogie is introduced, and the consideration of reducing weight, improving fatigue strength and welding treatment during the design process is also considered. The static strength and fatigue strength of the frame are mainly evaluated by UIC standard.