Response Spectrum Transformation for Seismic Qualification Testing

Seismic qualification testing for equipments to be mounted on upper storeys of buildings is very demanding in terms of floor spectra. The latter is characterized by high accelerations amplitudes within a narrow frequency band. This article presents a method which permits to cover specified required response spectra beyond the shaking table capability by amplifying the acceleration amplitudes at an appropriate frequency range using a physical intermediate mounted on the platform of the shaker.

Authors:

• Nouredine Bourahla
• Farid Bouriche
• Yacine Benghalia

Keywords:

• floor spectra
• response spectrum
• seismicqualification testing
• shaking table

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