Numerical Investigation into Seismic Behavior of Reinforced Concrete Silos Considering Granular Material-Structure Interaction

Silos are structures used for storing different types of granular materials. Seismic behavior of reinforced concrete silos is very complex due to nonlinearity of reinforced concrete wall of silo and nonlinear behavior of granular material. In this paper, the effect of granular material-structure interaction is investigated for a reinforced concrete silo by using ABAQUS finite element package. A hypoplastic constitutive model is used for modeling the granular material. After modeling the granular material-structure interaction under seismic excitation, the results obtained are compared with those of models without granular material-structure interaction.