| 孙广沧,孙巍巍,周先财.GB50077-2017附录C仓壁贮料压力计算模型研究[J].水泥工程,2024,37(1):65-68 |
| GB50077-2017附录C仓壁贮料压力计算模型研究 |
| Research on the Calculation Model of Silo Wall Storage Pressure in Appendix C of GB50077-2017 |
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| DOI： |
| 中文关键词: 浅圆仓,侧压力,贮料,计算模型,破裂角 |
| 英文关键词: squat silos, lateral pressure, stored material, computation model,rupture angle |
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| 中文摘要: |
| 针对GB50077—2017附录C仓壁贮料压力计算模型出现的工况横跳且侧压力不连续的问题，本文通过理论分析指出这些问题均是由侧压力求极值时产生，建议直接采用试算法获得侧压力的最大值及其所对应的破裂角。参数分析表明随着破裂角的不断增大，仓壁侧压力呈现出先增大后减少的趋势，侧压力最大值可直接取界限破裂角对应的侧压力值。传统浅仓计算方法的侧压力系数在各个高径比下均大于附录C侧压力模型的等效侧压力系数。 |
| 英文摘要: |
| 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 problems 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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