The Maintenance Effect of Diaphragm-to-Rib Fatigue Cracks in Orthotropic Steel Deck via Steel Plate Reinforcement
نویسندگان
چکیده
To investigate the maintenance effect of diaphragm-to-rib fatigue cracks via steel plate reinforcement, finite element models different-shaped plates were established. Stress intensity factors at crack tip before and after reinforcement obtained, variations in stresses studied. Polygonal reinforcements then carried out on a real bridge based calculation results. The changes stress amplitudes damage degrees analyzed rain-flow counting method Miner’s linear accumulating theory. results show that both polygonal rectangular could effectively eliminate concentration restrain propagation cracks. other parts arc notch increased had less influence. After bridge, cycle number high decreased significantly. degree repaired part reduced by 70.1%, which verified
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ژورنال
عنوان ژورنال: Applied sciences
سال: 2023
ISSN: ['2076-3417']
DOI: https://doi.org/10.3390/app131810368