For fatigue assessments of railway bridges improved load spectra are given in EN1991-2. This could have relevant consequences on design of new bridges as well as on the evaluation of residual fatigue life of existing bridges. As known, beside explicit damage calculations, fatigue can be assessed using the so-called λ method. In the study, the accuracy of damage equivalence factors λ given in EN1993-2 for railway steel bridges is discussed, pointing out that their values need some refinement, also in view of future improvements of the EN1993-2 itself.
Improvement of damage equivalence λ-factors for railway steel bridges
CROCE, PIETRO
2010-01-01
Abstract
For fatigue assessments of railway bridges improved load spectra are given in EN1991-2. This could have relevant consequences on design of new bridges as well as on the evaluation of residual fatigue life of existing bridges. As known, beside explicit damage calculations, fatigue can be assessed using the so-called λ method. In the study, the accuracy of damage equivalence factors λ given in EN1993-2 for railway steel bridges is discussed, pointing out that their values need some refinement, also in view of future improvements of the EN1993-2 itself.File in questo prodotto:
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