Research Progress on the Mechanics of Large Steel Silos under Environmental and Loading Conditions
With the continuous development of society,cylindrical steel silos have become an indispensable storage structure in various fields such as industry and agriculture.As the scale continues to expand,the safety,applicability,and durability of large steel silos have become the focus of attention.Many scholars have conducted research on steel silos.Through a comprehensive analysis of the current research status of steel silos both domestically and internationally,this study focuses on the static lateral pressure of stored materials,comparing normative results with finite element calculations.The research delves into the contact state,temperature,friction angle,friction coefficient,selection of constitutive models,and the lateral pressure distribution during the eccentric unloading process.In terms of solar radiation and temperature effects,the study investigates the stress,strain,and stability of the silo walls under uniform temperature conditions.It simulates and studies the concept of cosine distribution for the uneven temperature field formed under solar radiation.Regarding seismic effects,finite element analysis is conducted with input from different seismic waves,and the results are compared with normative calculations.The study considers the influence of material storage on the sidewall pressure under seismic effects.Future research should involve a more detailed examination of the structure of large steel silos,including the stability performance of large steel silos under the combined action of storage load and uneven foundation settlement,and the optimization of health monitoring sensor placement for large steel silos.
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