Civil Engineering Reference
In-Depth Information
Figure 3.22
Search options from Pacifi c Earthquake Engineering Research Center (PEER) strong-motion database:
selection of earthquake or station and peak values (
top
) or response spectra parameters (
bottom
) (
adapted from
Pacifi c Earthquake Engineeering Research Center, USA)
3.8 Software for Deriving Spectra and Generation of
Ground - Motion Records
Several Windows
®
-based computer programs with user-friendly graphical interfaces are available to
derive elastic and inelastic earthquake spectra. Similarly, artifi cial ground motion with spectra either
matching or are compatible with a set of specifi ed smooth response spectra can be generated with the
aid of software packages (e.g. Gasparini and Vanmarcke, 1976). The use of artifi cially generated earth-
quakes can be useful when response history analyses are required and natural strong motions are scarce
or non-existent. The software for deriving spectra and generation of artifi cial accelerograms is discussed
hereafter.
