Relationship between R and Ductility

This lecture explores the relationship between the response modification factor R and the ductility demand in seismic engineering, focusing on inelastic response spectra. It covers topics such as the influence of R on ductility, equal displacement and energy rules, and the behavior factors in design codes. The instructor discusses the parametric study conducted by Newmark and Hall to determine the function μ (R) and the implications for structural design.