Section Representation of actions

1)P The structural form of the silo shall be selected to give low sensitivity to load deviations.

2)P Loads due to particulate materials shall be calculated for filing and for discharge. The magnitude and distribution of the design loads depend on the silo structure, the stored material properties and the flow patterns which arise during the process of emptying.

3) The inherent variability of stored materials and simplifications in the load models lead to differences between actual silo loads and loads given by the design rules in section 5. For example, the distribution of discharge pressures varies around the wall as a function of time and no accurate prediction of the mean pressure or its variance is possible at this time.

4) Simplified rules for the prediction of flow patterns (Figure 5.1) may be used for the calculation of actions in silos.

5) Simplified rules for the prediction of flow patterns (Figure 5.1) should not be used for the design of silos for flow.

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