弯曲宽翼缘钢构件常用于建筑和桥梁中,并在室温下通过辊弯机进行弯曲。辊弯过程改变了构件残余应力分布,可能影响拱构件的弹塑性屈曲性能。考虑材料非线性、几何非线性及接触,进行数值模拟,分析辊弯过程中弯曲宽翼缘构件的残余应力。将模拟结果与试验结果进行比较,结果表明:下翼缘吻合很好,上翼缘吻合较好,腹板吻合一般。结果证明有限元分析方法可用于研究辊弯曲宽翼缘构件的残余应力。 Bent wide flange steel components are commonly used in buildings and bridges and are bent through roll benders at room temperature. Roll bending process changes the component residual stress distribution, which may affect the elasto-plastic buckling of arch members. Considering the material nonlinearity, geometric nonlinearity and contact, the numerical simulation is carried out to analyze the residual stress of the curved wide flange member during roll bending. The simulation results are compared with the test results. The results show that the lower flanges fit well, the upper flanges fit well and the webs fit well. The results show that the finite element analysis method can be used to study the residual stress of the wide curved flange member.