Simulating and Analyzing Artificial Non-Stationary Earthquake Ground Motions

摘要

This report describes models used to simulate earthquake accelerograms and analyses of these artificial accelerogram records for use in structural response studies. The artificial accelerogram records are generated by a class of linear difference equations which have been previously identified as suitable for describing strong ground motions. The major contributions of the report are the use of Kalman filters for estimating time-varying model parameters, and the development of an effective non-parametric method for estimating the variance envelopes of the accelerogram records.