Journal
INTERNATIONAL JOURNAL OF FATIGUE
Volume 175, Issue -, Pages -Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.ijfatigue.2023.107742
Keywords
Orthotropic bridge deck; Fatigue tests; Hot-spot stress; FAT class; TS 1993-1-901
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This study determines the fatigue resistance of welded details in orthotropic decks using structural stress and fracture mechanics simulations. High fatigue resistances are observed due to favorable loading modes and reduced driving force with crack growth. The technical specification TS 1993-1-901, part of the new generation of Eurocodes, is based on the findings of this study.
This study derives the fatigue resistance of welded details in orthotropic decks using structural stress (hot-spot stress where possible) based on tests described in literature and tests by the authors. The data are supported with linear elastic fracture mechanics simulations. Details covered are the rib to deck weld, the crossbeam to deck weld and the deck butt weld. High fatigue resistances are found, caused by favourable loading modes (bending and compression) and reduced driving force with the growth of cracks. The technical specification TS 1993-1-901, part of the new generation of Eurocodes, is based on the results of this study.
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