Reliability analysis of typical cold-formed steel beams sections.
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2016
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Resumo
This paper presents a reliability analysis of cold-formed steel beams, based on the
FORM and MC simulation and using data obtained from experimental tests performed at the
Johns Hopkins University, Baltimore (Schafer, 2003; 2006). This paper approached two sets
of flexural tests, one referring to the failure by local buckling, and another for distortional
buckling. A failure function is assembled to obtain, by taking into account the statistical
parameters of the material (M), fabrication (F), and professional factors (P). The material
and fabrication factors were taken from AISI standard. The professional factor was
determined by comparing the tested failure loads and the predicted ultimate loads calculated
from the selected design provisions. The goal of the paper is the assessment of reliability
index for two nominal live-to-dead load ratios, as well as to compare the value found
considering the load combinations for ultimate limit states.
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Reliability, Buckling, Cold-formed stee, Steel beams
Citação
CAMPOS, R. S. da S.; BRANDÃO, A. L. R.; FREITAS, M. S. da R. Reliability analysis of typical cold-formed steel beams sections. Revista Interdisciplinar de Pesquisa em Engenharia - RIPE, v. 2, p. 125-137, 2016. Disponível em: <https://periodicos.unb.br/index.php/ripe/article/view/21384>. Acesso em: 29 set. 2017.