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本文对球罐对接焊缝的角变形和错边处的应力计算公式做了一些实验验证。结果表明,文[2]中关于角变形和错边的应力计算公式对直径为6～10米的球罐基本适用。推荐了球壳对接焊缝区存在角变形和错边时的最大应力计算公式,利用强度条件建立了球壳对接焊缝区最大角变形和错边量的控制条件。
In this paper, some experimental verification is made on the formula of the stress at the corner deformation and the wrong edge of the butt weld of the spherical tank. The results show that the formula for stress calculation of angular deformation and wrong edge in [2] is basically applicable to spherical tanks with diameter of 6 ~ 10 m. The formulas for calculating the maximum stress of ball butt weld zone with angular deformation and mis-edge are recommended. The control conditions of the maximum angle deformation and misalignment of the butt weld zone are established by using the strength conditions.