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Sensitivity of metal frames reliability to semirigid connections parameters
AbstractThe present study deals with the sensitivity of metal frames reliability to the randomness of the characteristics of both the structural members and the connections. The random variables involved are the geometrical dimensions, the mechanical properties of the constitutive materials and the applied loads.The reliability analysis must be, in principle, defined through the probability of failure, denoted Pf, by either buckling or plastic mechanisms events. Monte Carlo simulations could be run to assess the Pf values. However, as a first step in the comprehension of the phenomena that cause the structural failure, the authors restrict their present study to the analysis of the evolution of the critical values of the applied loads. The results show that, with an adequate numerical procedure, an acceptable precision of these values may be reached for a reduced number of simulations. The multimodal failure of the structure is also demonstrated. Conclusions can be made about the attention that must be devoted to the random character of either the structural members or the connections.
Sensitivity of metal frames reliability to semirigid connections parameters
AbstractThe present study deals with the sensitivity of metal frames reliability to the randomness of the characteristics of both the structural members and the connections. The random variables involved are the geometrical dimensions, the mechanical properties of the constitutive materials and the applied loads.The reliability analysis must be, in principle, defined through the probability of failure, denoted Pf, by either buckling or plastic mechanisms events. Monte Carlo simulations could be run to assess the Pf values. However, as a first step in the comprehension of the phenomena that cause the structural failure, the authors restrict their present study to the analysis of the evolution of the critical values of the applied loads. The results show that, with an adequate numerical procedure, an acceptable precision of these values may be reached for a reduced number of simulations. The multimodal failure of the structure is also demonstrated. Conclusions can be made about the attention that must be devoted to the random character of either the structural members or the connections.
Sensitivity of metal frames reliability to semirigid connections parameters
Mebarki, A. (author) / Colson, A. (author)
Thin-Walled Structures ; 20 ; 49-60
1994-01-01
12 pages
Article (Journal)
Electronic Resource
English
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