4.8.3. Multi-Support Excitation Pattern¶
The Multi-Support pattern allows similar or different prescribed ground motions to be input at various supports in the structure. In OpenSees, the prescribed motion is applied using single-point constraints, the single-point constraints taking their constraint value from user created ground motions. =================================== ===========================================================================
patternTag(int) integer tag identifying pattern =================================== ===========================================================================
- The results for the responses at the nodes are the ABSOLUTE values, and not relative values as in the case of a UniformExciatation.
- The non-homogeneous single point constraints require an appropriate choice of constraint handler.