Vertical walled section

1)P The discharge loads are composed of a fixed load and a free load, called a patch load.

2) The fixed loads pwe, Phe are obtained as follows

where:

Cw and Ch are load magnifiers according to expressions (5.22) and (5.23). For silos unloaded from the top (no flow):

In other slender silos the wall pressure magnifier and the horizontal load magnifier are:

3) The magnitude of the discharge patch pressure Pp is:

where:

Phe is calculated from expression (5.21).

b depends on the greater of the filling and discharge eccentricities and is:

4) The calculation of patch loads for discharge may be carried out using the guidance given for patch loads for filling [5.2.1.1 4) to 8)]

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