Influence of effective stiffness on the performance of RC frame buildings designed using displacement-based method and evaluation of column effective stiffness using ANN

•The use of gross stiffness misinterprets the dynamic response of the buildings.•FEMA356 specified stiffness factors are also found deficient.•Developed an ANN model for estimating effective stiffness ratio of columns.•A model equation is also presented based on the trained weights of the ANN model....

Ausführliche Beschreibung