土木工程与管理学报2016，Vol.33Issue(5)：28-32,5.
漏斗倾角对粮仓侧压力的影响
Wall Pressure of the Granary Model with Different Hopper Angle
摘要
Abstract
In order to study the wall pressure of the single silo with different hopper angles, three organic glass silo models with the hopper angle of 60°,45° and 30° were made, and all silos were filled with Fujian Pingtan standard sand. The static wall pressures were obtained from pressure sensors inside the silos; meanwhile, the numerical simulation method was also employed to calculate the static wall pressure and Mises stress. Then the static wall pressure of experimental, simulated and calculated values with design code formulae were analyzed, and the final comparative analysis results show that the experimental and the simulated values are respectively in consistent with the formula calculation ( the coefficient is k and k′) , and the simulated values are larger than the experimental ones, therefore, it is workable to design silo with the proposed FEM method. The wall pressure and Mises stress are all affected by the hopper angle. The maximum of absolute differences of wall pressures appears at the bottom of silo models with the hopper angle of 30 ° and 60 ° , and the minimum appears at 0. 4 m for each silo model. It can be roughly divided into three stages to rank wall pressure values for each silo model, but the values of the silo model of 45° is always in the middle of them. Furthermore, the larger Mises stress distribution of the silo model of 30° is different from the other two silo models.关键词
立筒仓/漏斗倾角/侧压力/数值模拟Key words
silo/hopper angle/wall pressure/numerical simulation分类
建筑与水利引用本文复制引用
张大英,王树明,梁醒培..漏斗倾角对粮仓侧压力的影响[J].土木工程与管理学报,2016,33(5):28-32,5.基金项目
国家自然科学基金(51178164) （51178164）
郑州市科技计划项目(20140586) （20140586）
