Análise de Confiabilidade de um Pórtico Sujeito à Análise Limite sob Incerteza
Abstract
Palavras-chave: Análise de confiabilidade; Análise limite; Incerteza; Pórtico.
Reliability Analysis of a Frame Subjected to Limit Analysis under Uncertainty
Abstract: Given the data variability, it becomes relevant to quantify the reliability of a system. Therefore, this paper aims to perform a reliability analysis of a frame in relation to its plastic limit state when the applied load and material yield strength are uncertain (probabilistic parameters). The method of propagation of uncertainties used is the Monte Carlo simulation. In view of the results, the deterministic approach did not show a failure for the frame, while the non-deterministic approach showed a failure probability of 0.49% for the structure. Therefore, for structures with a low safety margin, the deterministic analysis carries the risk of an unpredicted structural failure.
Keywords: Reliability analysis; Limit analysis; Uncertainty; Frame.
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