Comparisons of Seismic Hazard Analysis Methods for Engineering Sites

: In view of the existing various seismic hazard analysis methods, the seismic hazard analysis method based on historical seismic intensity data and the probabilistic seismic hazard analysis method to analyze the seismic hazards of the main urban area in Beijing was taken, and the peak ground acceleration with a probability of exceeding 10% in 50 years was obtained. The results showed that the peak ground acceleration of the main urban area in Beijing was of obvious spatial variability, which was gradually increasing from the west of the city to the east; the results obtained from those two methods were reliable and the differences were slight. The methods had their own characteristics, the former had fewer assumptions including site effects and was moderately difficult to calculate