Abstract
Glass is being increasingly used as a structural material. Its favorable aesthetic qualities have made it popular with modern designers. Recently glass is used for major structural elements such as beams and columns in modern and innovative architectural applications. High slenderness ratios and brittle behavior in tension contribute to the complexity of stability and ultimate strength analysis of glass structures. Moreover the available design curves and methods of ultimate strength analysis of glass structure contain epistemic uncertainty, therefore are not reliable. In this study, based on logical reasoning, concise mathematics and reliable data, a reliable method called the change of state philosophy is developed and expressed in the Persian curve. The Persian curve is used for reliable analysis of glass structures. The validity of the work is verified via its sound basic formulation and comparison of the results with those of the others in the literature.
Highlights
Glass is being increasingly used as a structural material in particular its favorable aesthetic qualities have made it popular with modern designers
Feldmann and Longosch (2010) focused on the results of buckling with monolithic sections of heat strengthened and tempered glass, giving buckling curves proposed by derivations and experiments
Extensive research of the author’s team (Ranjbaran et al, 2020a) concluded into the fact that the Persian curve for complete failure is defined in Eq (21) (We looked for reliable capacity data in different codes, theses, dissertations, papers and reports (Ranjbaran et al, 2020a)
Summary
Glass is being increasingly used as a structural material in particular its favorable aesthetic qualities have made it popular with modern designers. Bedon and Amadio (2015), proposed a Eurocode-based approach for buckling verification of glass columns and beams. Bedon and Amadio (2017), proposed and analytical formulation for the resistance verification of a structural element under ultimate state variable loads. Computation of the parameters that are assumed to be known and the result of analysis introduce epistemic uncertainty into the work. This is the main shortcoming of all conventional methods of analysis in different branches of human knowledge. This shortcoming is removed, in the change of state philosophy (Ranjbaran et al, 2020a), as follows. The (D&O) are defined in terms of the (R) in Equation (8):
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