Reliability Assessment Methodology of Blast Protective Steel Moment Resisting Frame Using NiTi SMA-based Connection

This paper proposes a methodology framework for the reliability assessment of smart steel Moment Resisting Frame structures (MRFs) equipped with Nickle Titanium Shape Memory Alloy (NiTi SMA) connections subjected to blast loading. The is formulated based on two-step approach algorithm. In 1st Step, Monte Carlo Latin Hypercube Sampling Strategy simulation (MC-LHS) adapted generate uncertain parameters sample points. Considering numerical simulations, 2nd Step employs simplified performance functions and generated random outcomes from Step. proposed verified against direct Simulation (MCS) First-Order Reliability Method (FORM). are columns’ axial force bending moments, rotation capacity at connections, Inter-Story Drift Ratio (ISDR). Throughout development assessment, probabilistic models parametrized geometrical properties, material vertical loads, model errors, charge weights. developed applied prototype 4-story MRF. structural safety level obtained in terms Index (?). results show that provides an accurate efficient collapse prediction MRFs NiTi SMA-based connections. Finally, sensitivity analysis performed indicate building wave characteristics, strength, gravity column profile dimensions. also confirm efficiency observing highly sensitive parameters, which explosive weight.