Create: Load Combination dialog

This dialog is used to add a load case which consists of factored combinations of loads from other load cases.

Opens when the Load Combination tool is selected in the Loads group on the Model ribbon tab.

Control	Description
Name	Type a name for the load combination.
Description	Type a description used to annotate the load combination.
Type	Select the combination method to use for this load combination: Linear – A pure algebraic load combination in which the results of all constituent cases will be algebraically added. Ex.: $f_{1} \times L_{1} + f_{2} \times L_{2} + f_{3} \times L_{3}$ SRSS – The square root of the sum of the squares method of combination. Ex. $f_{1} \times L_{1} + f_{S R S S} \times \sqrt{f_{2} L_{2}^{2} + f_{3} L_{3}^{2}}$ ABS – Algebraic combination of absolute values. Ex.: $f_{1} \times \| L_{1} \| + f_{2} \times \| L_{2} \| + f_{3} \times \| L_{3} \|$
Analysis set	Select the analysis set with which you want to associate this load combination. Note: This option is only available when the REPEAT Primary Load Cases option for Combination Load Cases is selected in the Options dialog Analysis model tab.
SRSS factor	The load factor coefficient, f_SRSS, used for the square root value of the sum of the squares.
Include Load Groups	(for REPEAT loads setting) Check this option to include load groups as repeat loads within load combinations. These
Load type filter	Click to display a drop-down list of all current load case and load group types for inclusion in the load combination. You can filter our the factor tables by unchecking any unwanted load types.
Load case factor	Click the field to display a table of filtered load cases and associated type. You can specify a load case factor and select the SRSS combination option. You can also check if this is a Notional load by specifying a notional load factor and selecting a direction.
Load group factors	Click the field to display a table of filtered load groups and associated type. You can specify a load group factor for the combination. You can also check if this is a Notional load by specifying a notional load factor and selecting a direction.