Spectral Analysis of Earthquake Records and Harmonic Functions

Analysis types:

• Elastic spectra• Inelastic spectra• Input can be earthquake acceleration records

or harmonic functions

Main Features

• Bilinear hysteresis rule for inelastic spectra• Returns elastic spectra for a specified range of

damping values • Returns inelastic spectra for a specified range

of force reduction factors (R)

Applications:

• Study of resonance effects in the response of SDOF under forced vibrations

• Spectral analysis of seismic records• Study of characteristics of earthquake records• Study of Effects of damping in response of

SDOF• Study of R--T relations for inelastic systems