在参考国内外钢结构设计规范的基础上，对箱形梁腹板在３ 种受力条件下的屈曲后性能进行深入的理论分析，提出相应的简化分析方法，供工程设计和规范修订参考。 Based on the design specifications of steel structures at home and abroad, the theoretical analysis of the buckling behavior of box girder web under three kinds of stress conditions is carried out, and the corresponding simplified analysis method is proposed for reference of engineering design and code revision.