Abstract
This paper provides a simplified procedure for computing the probabilistic maximum response of a linear single-degree-of-freedom system subjected to earthquake ground motion. The formulation uses the root-mean-square (rms) response of the system and a probabilistic peak factor which is modified to account for the wide-band characteristics. The modification uses a set of damping-dependent coefficients obtained from correlating the peak factor with the ratio of the maximum response to the rms response from accelerograms recorded on alluvium and rock. The procedure incorporates the influence of soil condition and the strong motion duration as parameters in computing response spectra.
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