Pattern Commands

The pattern command is used to construct a LoadPattern and add it to the Domain. Each LoadPattern in OpenSees has a TimeSeries associated with it. In addition it may contain ElementLoads, NodalLoads and SinglePointConstraints. Some of these SinglePoint constraints may be associated with GroundMotions.

The command has the following form:

pattern patternType? arg1? arg2? ...

Argument Type Description
$patternType string pattern type
$eleTag integer unique epattern tag.
$args List[] a list of args

The type of pattern created and the additional arguments required depends on the patternType? provided in the command. The following contain information about patternType? and the additional args required for each of the available pattern types:

OpenSees Loads

plainPattern uniformExcitationPattern multiSupportPattern DRM