PeerMotion

From OpenSeesWiki
Jump to navigationJump to search




This command is used to construct a TimeSeries object which, similar to a Path TimeSeries, the load factor obtained is dependent on a series of points obtained from a file. The difference is that the file is obtained from the original Peer strong motion database using an internet connection.

timeSeries PeerMotion $tag $eqMotion $station $type $factor <-dT $dT> <-nPTS $nPts>

$tag unique tag among TimeSeries objects.
$eqMotion the PEER name for the earthquake
$record a combination of PEER abbreviated station name and direction
$type type can be either -ACCEL or -DISP depending on whether you want accelerations or displacements
$factor factor to be applied to the data points, if accel record type you want to specify G
$nPts optional, if provided will set the variable nPts equal to number of data points found in record
$dT optional, if provided will set the variable dT equal to time interval between points in the record


NOTES:

  • If the time in the domain does not match a data point in record, linear interpolation is performed between nearest points in record.
  • The command can be used with the results obtained from the searchPeerNGA command (hence the craziness of the $eqMotion names).
  • An internet connection is required to run command.

EXAMPLE

To create 2 time series for two horizontal motions recorded for the Borrego Mtn 1968-04-09 earthquake recorded at the USGS 117 El Centro Array #9 station

timeSeries PeerMotion 1 BORREGO A-ELC180 -ACCEL $G -dT dt -NPTS nPts

timeSeries PeerMotion 2 BORREGO A-ELC270 -ACCEL $G


Code Developed by: fmk