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Structural Engineering and Mechanics
  Volume 10, Number 1, July 2000 , pages 17-26

Application of frequency domain analysis for generation of seismic floor response spectra
Ghosh AK

    This paper presents a case study with a multi-degree-of-freedom (MDOF) system where the Floor Response Spectra (FRS) have been derived from a large ensemble of ground motion accelerograms. The FRS are evaluated by the frequency response function which is calculated numerically. The advantage of this scheme over a repetitive time-history analysis of the entire structure for each accelerogram of the set has been highlighted. The present procedure permits generation of FRS with a specified probability of exceedence.
Key Words
    ground motion, frequency response function, floor response spectra, exceedence probability
Ghosh AK, Bhabha Atom Res Ctr, Reactor Safety Div, Bombay 400085, Maharashtra, India

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