Stochastic Critical Excitationsby Mukund Srinivasan,
Document Type: Proceeding Paper
Part of: Probabilistic Mechanics and Structural and Geotechnical Reliability
Conventional methods of seismic analysis of structures frequently use the response spectrum or time history analysis techniques. The excitations for the time history analysis can be either records of past earthquakes or artificially generated time histories which are stationary in frequency content but not in amplitude. Most available techniques choose the model parameters so that the excitation statistics are similar to those of past earthquake ground motions. In this paper, the non-stationary filtered shot-noise model proposed by M. A min, and A.S. Ang (1968) is used as the basis for modeling the earthquake. The time domain approach is used to find the parameters of the critical stochastic excitation corresponding to this model for linear elastic single degreed of freedom systems.
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