Study of Radial Stiffness of Interaction between Bulk Material and Steel Silo Structure

Large steel silos are typically thin-walled structures, widely used in agriculture and industry to store large quantities of bulk materials. In the presence of steel solids in cylindrical shells the stiffness of the contents has a positive influence on the Silo walls, similar to internal pressure. In order to clarify the influence of the interaction between steel silos and bulk materials, the paper establishes a model for the interaction between steel silos and bulk materials using finite element simulation based on the European steel silo specification, and applies the theoretical analysis of mathematical modelling. The results of the study showed that: Wheat storage material and steel silos interaction stiffness values range from 0.0025 to 0.01 N/mm 3 and 0.003 to 0.015 N/mm 3 ; the value of the lateral pressure on the wall of the silo will be reduced as the radial displacement of the wall of the silo wall increases with the movement outwards; and the wheat storage stiffness of this paper was verified by literature test results. Provides a reference for the stability of steel silos containing wheat storage material in realistic situations.