Damage evaluation and ultra-low-cycle fatigue analysis of high-rise steel frame with mesoscopic fracture models

In this study, a straightforward method for evaluating damage and ultra-low-cycle fatigue (ULCF) life of high-rise steel frame structures under strong seismic loading at the material level was newly proposed on basis of inter-story drift measurement and mesoscopic fracture models. A mesoscopic ULCF model for cyclic loading was improved by considering both effects of strain amplitude and loading sequence, which was implemented into finite element...