Analysis of seismic non-structural damage in single-storey industrial steel buildings

This study illustrates an approach that allows evaluating the intensity and extent of non-structural damage in steel buildings. Different levels of cladding panel damage are introduced and a specific cladding panel hysteretic model is included in the structural model and calibrated on available data from experimental tests. Numerical results from nonlinear dynamic analyses are elaborated in the form of fragility curves for the damage limit state and used to compare the consequences of different cladding behaviours on prototype single-storey industrial steel buildings used as case studies. The outcomes are also compared to a damage limit state derived from structural analysis adopting bare-frame models and conventional drift-based damage criteria.