Apply loads to a substructure.

This option is used to activate a substructure load case defined by the SUBSTRUCTURE LOAD CASE option.

Related Topics
In Other Guides
Using substructures


TypeHistory data


Optional parameters


Set this parameter equal to the name given to an amplitude defined by the AMPLITUDE option (Amplitude Curves). This amplitude defines the time variation of the load case (SUBSTRUCTURE LOAD CASE) magnitude throughout the step. If this parameter is omitted, the default amplitude is that defined in Defining an analysis for the particular procedure used in the step.


Set OP=MOD (default) to modify or add to the currently active SLOADs.

Set OP=NEW if all existing SLOADs applied to the model should be removed and new ones possibly defined.

Optional, mutually exclusive parameters for steady-state dynamic analysis


Include this parameter to define the imaginary (out-of-phase) part of the loading.


Include this parameter (default) to define the real (in-phase) part of the loading.

Data lines to define the loading

First line
  1. Element number or element set name. The elements must be substructures.

  2. Load case name (as defined on the associated SUBSTRUCTURE LOAD CASE option).

  3. Load magnitude. This magnitude is a multiplier for the load case magnitude defined under the SUBSTRUCTURE LOAD CASE option. It can be adjusted throughout the step by the amplitude specification in the usual way.

Repeat this data line as often as necessary to define the loadings on the substructures.