On The Evaluation Of Probabilistic Displacement Spectra
Author(s)
L. Decanini, L. Liberatore, F. Mollaioli
Abstract
On the evaluation of probabilistic
displacement spectra
L. Decanini, L. Liberatore, F. Mollaioli
Department of Structural and Geotechnical Engineering
University of Rome "La Sapienza", Italy
Abstract
In this paper, on the basis of a large set of ground motion records, the result of a
statistical analysis on the elastic displacement spectra and the comparison
between different theoretical probabilistic distribution will be presented for a
selected number of vibration periods. The following four theoretical distributions
have been taken into account: Normal, Lognormal, Gamma and Gumbel type I.
Since the best fit to the data was provided from the Lognormal distribution, in
this paper lognormal displacement spectra will be defined, for different levels of
probability of non-exceedance, for the estimation of the displacement demands
to structures located on different local soil condition, at different distance from
the causative fault, and for different levels of magnitude.
1
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