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This work aims to obtain a simple expression, which allows defining a minimum thickness for reinforced concrete slender walls in order to avoid buckling. This expression was obtained based on the thin plates theory, with a linear-elastic analysis, considering an energetic approach and the Ritz method. The proposed model takes account for only the compressed zone of the wall, with an axial load distribution obtained from the flexocompression demands, in other words, the compression stresses in the concrete along the distance between the extreme fiber in compression and the neutral axis. The results obtained present an adequate qualitative agreement with the experimental observations, however, quantitatively the results are non-conservative. [ABSTRACT FROM AUTHOR]

In this work, the behavior of a type of component, very used as a basic structural element in many industries, among them the mechanics, is studied. The influence of different physical factors, in the values of the buckling load in cylindrical structures of thin walled, subjected to pressure, is analyzed. It is used in the evaluation of this influence a method through which the probability of failure of the structure for a limit load is sought. Established analytic formulations, that take into account the non-lineal behaviors, geometric as physical, are employees. Also results obtained of the application of codes and information related with mechanical properties and their variation ranges, important in order to verify the collapse of this structure type. [ABSTRACT FROM AUTHOR]