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本文采用８结点４０自由度剪切厚壳单元对网架焊接空心球受压节点进行了弹塑性分析．通过对各种尺寸的节点不同加载方式的计算，分析了球面的塑性区分布、应变及位移的分布和变化规律，以及球体和钢管的尺寸、加劲肋与否、加载方式等因素对球体承载力的影响．通过对１５０多种不同情况的节点计算结果的回归分析，得出了更为合理的受压球体承载力计算公式．
In this paper, elastic-plastic analysis is performed on the welded joints of pressure-welded joints of latticed hollow spheres with eight-node 40-degree-of-freedom shear shell elements. Through the calculation of different loading methods for various sizes of nodes, the distribution, variation and distribution of the plastic zone distribution, strain, and displacement of the spherical surface are analyzed, and the ball bearing capacity of the sphere and the size of the steel pipe, the stiffening rib or not, and the loading method are analyzed. Impact. Through a regression analysis of the calculation results of more than 150 different nodes, a more reasonable calculation formula for bearing capacity of pressurized spheres was obtained.