Research on the Calculation Model of Silo Wall Storage Pressure in Appendix C of GB50077-2017
In response to the problem of working condition contradiction and discontinuous lateral pressure in the calculation model of storage pressure on the silo wall in Appendix C of GB50077-2017,this article points out through theoretical analysis that these prob-lems are all caused by the process of finding the extreme value of lateral pressure.It is recommended to directly use the trial calculation method to obtain the maximum value of lateral pressure and its corresponding rupture angle.Parameter analysis shows that as the rupture angle continues to increase,the lateral pressure on the silo wall shows a trend of first increasing and then decreasing.The maximum value of lateral pressure can be directly taken as the lateral pressure value corresponding to the boundary rupture angle.The lateral pressure coefficient of the traditional shallow silo calculation method is greater than that of the Appendix C model at various aspect ratios.
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