Taking four-span continuous prestressed concrete beam on newly-built passenger special railway as an example, starting from aspects of internal force and stress and displacement of bridge structure at various stages, the paper discusses the impacts of the special construction method of combining cantilever construction and scaffold construction upon bridge structure stress displacement and the construction points, which has provided guidance for similar continuous beam construction.%以新建铁路客运专线四跨预应力混凝土连续梁为例,从施工各个阶段的桥梁结构的内力和应力以及位移的角度,讨论了一边悬臂施工一边满堂支架这种特殊施工方法对桥梁结构应力位移的影响以及施工要点,从而为类似的连续梁施工提供指导。
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