Abstract
The primary stage in introducing significant uncertainties into the performance-based earthquake engineering technique of the next generation is the development of fragility curves. The technique of representing epistemic and aleatory uncertainties for moment-resisting steel frames is proposed in this manuscript. Incremental dynamic analysis (IDA) utilizes for considering aleatory uncertainty and epistemic uncertainty is taken into account through mass, damping, yielding stress, and a module of elasticity that is provided in four limit states of damage. The optimized fuzzy approach is applied to address this. Epistemic and aleatory uncertainties have been included in the 3D-fragility curves; epistemic’ input is fuzzy values, and fragility curves’ standard deviation and mean are estimated by using the optimized fuzzy approach, which is used PSO algorithm. The IDA approach is used to create scenarios that are used to train the FCMPSO algorithm. Verification was done by applying the Monte Carlo procedure results. The approach that has been used here is beneficial regarding to both accuracy and execution time in driving the 3D-fragility curves.
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Karimi Ghaleh Jough, F., Ghasemzadeh, B. Uncertainty Interval Analysis of Steel Moment Frame by Development of 3D-Fragility Curves Towards Optimized Fuzzy Method. Arab J Sci Eng 49, 4813–4830 (2024). https://doi.org/10.1007/s13369-023-08223-8
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DOI: https://doi.org/10.1007/s13369-023-08223-8