Civil Engineering Reference
In-Depth Information
FIGURE 5.18
Peak ground acceleration (%
g
) with a 10 percent probability of exceedance in 50 years for
California and Nevada. (
USGS 1996.
)
computer program, the input data are shown in Fig. B.12 and include the job number, job
name, site coordinates in terms of latitude and longitude, search radius, attenuation relation-
ship, and other earthquake parameters. The output data are shown in Figs. B.13 to B.19. As
indicated in Fig. B.13, the largest maximum earthquake site acceleration
a
max
is 0.4203
g.
●
Probability analysis:
Figures B.20 to B.25 present a probabilistic analysis for the deter-
mination of the peak ground acceleration at the site using the FRISKSP computer pro-
gram (Blake 2000c). Two probabilistic analyses were performed using different
attenuation relationships. As shown in Figs. B.21 and B.23, the data are plotted in terms
of the peak ground acceleration versus probability of exceedance for a specific design life
of the structure.
