环保型超大直径浅圆筒仓几个关键问题的分析研究

Several Key Issues of Environment-friendly Shallow Silos with Large Diameter

本文以某超大直径全封闭圆形混凝土料仓为研究对象,按照我国混凝土筒仓规范的要求和已完成的筒仓设计,对在各不均匀贮料堆载作用下和不同工况作用下的考虑上部结构—基础—地基共同作用的筒仓进行计算并得出有限元分析结果;对于季节温差下的典型工况,进行了热—结构耦合后的有限元分析,并同样对结果作出分析比较,得出季节温差对结构的影响;根据环形预应力筋的作用机理,采用等效荷载法模拟预应力作用,分析圆筒仓结构满载和空载两种情况预压力作用下的受力性能,并和未施加预应力时做对比,探讨预应力的作用。

A fully enclosed Circular concrete silo with large diameter according to the China specification re- quirements of concrete silo and the completed design of the silo was studied, considering the upper strueture-bas- ic- Foundation joint action of the silo, the finite element analysis results in uneven material heap load and in dif- ferent operating eonditions was calculated and obtained;To the typical operating conditions about the range of