You can also use the Edit Loading Rules facility to alter the definitions and factors which come included with the program for these codes or to add new codes containing their own definitions and factors.

Opens when the Automatic Combinations > Edit Auto Combination Rules tool is selected in the Load Generation group on the Loading ribbon tab.

Tables

Displays the rules associated with the selected code and category.

Rows in the table typically represent a single load combination rule. Columns in the table represent load types.

Configurations

Contains instructions for how each load type for tables in this Code should be handled.

Notional Load

Select this option for each load type to include Notional Load cases in the generated combinations, if they are present in the input file. These loads are used for direct analysis.

Combination Type

As some load types can result in different actions, a single rule may result in multiple load combinations (i.e., wind or seismic acting in positive or negative directions). The combination rule directs the program how to handle such cases:

• Aggregate - Combine all cases together: For each rule, a single combination will be created which will include all the load cases of that load category multiplied by the factor in the table.
• Separate - Separate combination for each case: For each rule, multiple combinations will be created, each will include one of the load cases of that load category multiplied by the factor in the table.
• Matrix - All possible combinations: For each rule, multiple combinations will be created which will include each of the load cases of that load category on their own and with each and every other load case of that category multiplied by the factor in the table.