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Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Sensitivity and fragility analysis of steel moment frames subjected to progressive collapse
Abstract Progressive collapse refers to a phenomenon in which a local damage in a primary structural element due to abnormal loads, leads to a partial or complete structural failure. Although most studies in progressive collapse are based on deterministic analysis using median or nominal values of analysis parameters, uncertainty analysis also results in more realistic results. An application of probability theory to the structures’ failure analysis with uncertain properties is one of the ways to deal with, in which they are considered as random variables. For probabilistic analysis, first sensitivity analysis should be carried out to study the sensitivity of response to different parameters. In this paper, sensitivity analysis is performed to study the effect of uncertainty of dead and live loads, and properties of steel such as modulus of elasticity and yield stress of steel on the response of column removed point. Then, fragility curves are also plotted to investigate the probability of progressive collapse of steel moment frames.
Sensitivity and fragility analysis of steel moment frames subjected to progressive collapse
Abstract Progressive collapse refers to a phenomenon in which a local damage in a primary structural element due to abnormal loads, leads to a partial or complete structural failure. Although most studies in progressive collapse are based on deterministic analysis using median or nominal values of analysis parameters, uncertainty analysis also results in more realistic results. An application of probability theory to the structures’ failure analysis with uncertain properties is one of the ways to deal with, in which they are considered as random variables. For probabilistic analysis, first sensitivity analysis should be carried out to study the sensitivity of response to different parameters. In this paper, sensitivity analysis is performed to study the effect of uncertainty of dead and live loads, and properties of steel such as modulus of elasticity and yield stress of steel on the response of column removed point. Then, fragility curves are also plotted to investigate the probability of progressive collapse of steel moment frames.
Sensitivity and fragility analysis of steel moment frames subjected to progressive collapse
Naji, Arash (Autor:in)
Asian Journal of Civil Engineering ; 19 ; 595-606
12.04.2018
12 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
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