According to the characteristics of convenient construction,economical cost,commonly used in small span bridge upper structure of pre-cast pre-stressed concrete box girder,according to the current pre-cast box girder general graphs,and combining with the engineering exam-ple,made checking computation to pre-cast box girder shear torsion capacity,and analyzed the checking computation results,gained some con-clusions with reference values.%针对预制预应力混凝土箱梁施工方便，造价经济，常用于小跨径桥梁上部结构的特点，根据现行预制箱梁通用图，并结合工程实例，对预制箱梁抗剪扭承载能力进行了验算，并对验算结果进行了分析，得出了一些有参考价值的结论。
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