Abstract
The paper presents theoretical and numerical studies of the behaviour of steel shells subjected simultaneously to internal pressures and frictional forces (distributed forces tangential to the shell surface). The type of combined loading used for this analysis (horizontal pressure and wall frictional pressure which occur in the silos) is given in Eurocode 1 Part 4 [Eurocode 3, Design of steel shells, CEN/TC250/SC3. Draft prENV, 1993.] and in the French draftcode P22-630 [Norme Francaise P22-630 edition AFNOR, 1992]. The cylindrical shell is symmetrically loaded (symmetrical filling and discharge). For this problem a new analytical method is developed to determine the stress distribution in the steel silo by resolving the equilibrium equations of the cylindrical shell subjected to loads due to particulate materials (wheat for example). The finite element method analysis of the shell using the Abaqus program enables a comparison with our analytical approach. The stress distribution predicted by Abaqus agreed well with our analytical results.
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