M. To add weight items to a seismic load definition

To create structural weights for a seismic load definition, use the following procedure.

If you want to assign floor weights to a floor group, you must have at least one group of the type Floor previously defined to use this option.

Tip: If you want to use the same loads for both seismic weights and another load (e.g., the dead load case), you can use a Reference Load case instead of this procedure.

In the Loads & Defintions dialog, select the seismic defintion to which you want to add weights and then click Add. The Add New: Seismic Definitions dialog opens.
Select the tab in the Add New: Seismic Definitions dialog corresponding to the weight you want to add.

Specify the weight parameters: For the following weight types, enter the data as indicated:

Weight type	Data to enter
Self	Type a Self Weight Factor
Joint	Type a Joint Weight
Member	Select the Loading Type. Type the Weight to use, the Starting Distance, and for uniform weights, the Ending Distance.
Element	Type a uniform Pressure

For Floor Weights, do the following:

Type a uniform floor Pressure.
Select if the load is applied over a Range or a floor Group.
(Optional) Check the One Way Distribution option to use that load distribution to supporting members. You can select the default behavior or select a specific member towards which the load is directed.
For the Range option, specify Y range limits and optionally X and Z range limits.
For the Group option, select a named group of members.
(Optional) For the Group option, select the Inclined Floor option if the group includes members forming a panel that is inclined from the global XZ plane.

Refer to TR.32.4.3 Floor Load Specification for additional details on specifying floor loads.

Click Add.
Repeat steps 1 through 3 to add additional weights to your seismic load definition.
Click Close.

You must assign the weight items to the appropriate objects.