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Stochastic considerations in seismic analysis of structures
Author(s) -
Singh M. P.,
Chu S. L.
Publication year - 1976
Publication title -
earthquake engineering and structural dynamics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.218
H-Index - 127
eISSN - 1096-9845
pISSN - 0098-8847
DOI - 10.1002/eqe.4290040309
Subject(s) - spectral density , seismic analysis , earthquake simulation , response spectrum , ground motion , stochastic process , incremental dynamic analysis , structural engineering , function (biology) , probability density function , geology , stochastic modelling , earthquake engineering , environmental seismic intensity scale , response analysis , seismology , computer science , engineering , mathematics , statistics , telecommunications , evolutionary biology , biology
A method is presented for stochastic modelling of a design earthquake by a power spectral density function for seismic analysis of structures. The method can be adopted with information currently available in the form of design response spectra for earthquake motion. Accurate seismic responses of structures can be easily obtained using such stochastic models. The methods for accurate response analysis of structures with closely spaced modes and for generation of floor response spectra of a building using a prescribed ground response spectrum directly are also presented. The hypothesis that a design earthquake can be modelled by a power spectral density function is used only implicitly in developing these methods.