About the criterion of the applicability of the rigid connection replacement for the flexible joints in the calculation of a truss

The influence of the rigid connection of the rods in the truss joints on the parameters of its tense and strained state has been studied. We consider the junction scheme of the truss loading. The criterion of the relevancy of the replacement of the rigid joints of the real truss for the flexible ones has been generally formulated. The application of the formulated criterion has been illustrated by the specific example