Seismic Design And Evaluation Of Multistory Buildings Using Yield Point Spectra
2.1 Introduction
Traditional seismic response spectra plots the maximum response (displacement,
velocity, acceleration or any other quantity of interest) to a specific ground motion as
function of the system's natural period or frequency of vibration. Seismic response spectra
can be classified as elastic and inelastic response spectra. Constant ductility response spectra
(CDRS) belong to the inelastic response spectra class. CDRS plot a strength-related
coefficient corresponding to a constant displacement ductility (µ) as a function of period or
frequency.
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