Abstract
Abstract For the purpose of establishing seismic design criteria for engineering structures, it is desirable to assess the expected intensity of seismic strong ground motion at a site for various probability levels (i.e., Seismic Hazard Analysis). In order to consider the seismic hazard at a site, the predictive equations of ground motion are needed. A number of predictive relationships derived from regression analysis of strong‐motion data are available for horizontal peak acceleration, response spectral value, and Fourier amplitude value. Of the earthquake data recorded in the Taiwan area, the “rock site” data are chosen for the determination of ground motion parameters. By using the predictive equation of peak ground acceleration, the seismic hazard curve at a site can be calculated, and by using the model of spectral acceleration attenuation, the uniform hazard spectrum is developed. Finally, by using the proposed Fourier amplitude attenuation model and the mathematical theory of the maximum response of a single‐degree‐of‐freedom linear system, the non‐exceedance probability of the earthquake response spectrum at a site at a certain lifetime can also be developed. Comparisons between the effects of different ground motion parameters on the results of seismic hazard analysis are made.
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