Comparison of Nonlinear Model Results Using Modified Recorded and Synthetic Ground Motions. SMiRT 21.

摘要

A study has been performed that compares results of nonlinear model runs using two sets of earthquake ground motion time histories that have been modified to fit the same design response spectrum. The time histories include applicable modified recorded earthquake ground motion time histories and synthetic ground motion time histories. The modified recorded earthquake ground motion time histories are modified from actual earthquake time history records that are selected based on consistent magnitude and distance. The synthetic ground motion time histories are generated using appropriate Fourier amplitudes, cumulative energy, and drift correction. All of the time history modification is performed using a similar algorithm to fit the design response spectrum. The study provides data to demonstrate that properly managed synthetic ground motion time histories are reasonable for use in nonlinear seismic analysis.