本文提出了一种确定压力容器焊缝残余应力的简易方法。球罐(特别是未退火的新罐)在水压试验中,焊缝附近的残余应力、薄膜应力和角变形或者错边的弯曲应力迭加起来,一般都超过材料屈服强度。本文利用测点的屈服条件,建立了球罐焊缝残余应力的计算公式,给出了确定球罐残余应力的程序。 This paper presents a simple way to determine the residual stresses in the weld of pressure vessels. Spherical tanks, especially new tanks that are not annealed. In hydrostatic tests, the residual stress near the weld, the stress on the membrane and the angular deformation or the bending stress on the wrong side are superimposed, generally exceeding the yield strength of the material. In this paper, using the measuring point yield conditions, the calculation formula of the residual stress of the spherical weld is established, and the procedure of determining the residual stress of the spherical tank is given.