evaluation of seismic performance of steel moment frames considering deterioration effects using ida

In recent decades several destructive earthquakes resulted in extensive structural and non-structural damage in structures which was produced due to strength and stiffness degradation of structural elements. on the other hand, steel structures are generally modeled considering an elasto-plastic behavior with strain hardening which may be overestimated performance of structure. therefore, it reveals the necessity for the accurate estimation of deterioration of both the strength and stiffness of elements, affecting the overall structural performance under seismic loading (ribeiro et al., 2014).