Calculation of rectangular steel silos

In this paper, the calculation of steel silos consisting of stiffened flat rectangular walls is presented.

These structures are intended to hold fragmented or ground solid materials and are equipped with an axial or eccentric truncated-pyramidal hopper.

For the calculation, reference is made to both the ECCS studies (Le silos Reimbert volume) and the Eurocodes EN 1993-4-1 ("Silos") ; EN 1993-1-6 ("Strength and stability of shell structures") ; EN 1993-1-7 ("Orthotropic slab structures loaded out of plane") ; EN 1991-4 ("Actions on silos and tanks").
The different calculation criteria are compared and commented on. The NTC 2008 standards do not deal with the subject but simply refer to the Eurocodes.

Calculation of rectangular steel silos