Progressive collapse analyses of stiffened box-girders submitted to pure bending (CROSBI ID 199171)
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Kitarović, Stanislav ; Žanić, Vedran ; Andrić, Jerolim
engleski
Progressive collapse analyses of stiffened box-girders submitted to pure bending
Two of the most distinctive contemporary approaches for determination of the ultimate bending load capacity of the stiffened thin-walled structures are: geometrically and materially nonlinear finite element method and various incremental-iterative methods based on Smith’s approach. While nonlinear finite element analysis method can be considered as the most comprehensive and potentially the most accurate available approach, methods based on Smith’s approach are prescribed by many classification societies (and their associations) and can be considered as the most widespread and most utilized among currently employed progressive collapse analysis methods. Results obtained by both methods are benchmarked against the results of experimental testing of various stiffened box girders submitted to extreme pure bending. Within the context of the considered problem, influence of various relevant aspects of the employed methods is evaluated and critically discussed, considering both levels (global and local) of structural response.
Nonlinear finite element method; progressive collapse analysis; Smith’s method; stiffened box girder; ultimate load-capacity; ultimate strength
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