To define new or to edit existing rules for
generating automatic load combinations, use the following procedure.
Note: In order to properly generate load combinations for Eurocode
(unofficially referred to as EC0), the program contains a macro which allows
for gamma inputs. For that code, refer to
M. To generate load combinations per Eurocode.
-
On the
Loading ribbon tab, select the
tool in the
Load Generation group .
The
Edit Loading Rules for Auto Load Combination
Generation dialog opens.
- Optional:
To create a new Code and Category of load combinations:
-
Select the top
Codes and tables
entry in the Contents
panel.
-
Select the Code tool in the
Create group.
A new Custom Code is added and the Custom table is
opened.
-
To rename the table, select the Rename tool in
the Edit group.
-
To add a new load cateogry, unlock this table and then click the
Append Row tool in the
Edit group.
-
To edit the combination rules, double-click the Configuration for the Custom
Code. For each load type:
-
Set the Include Notional Loads? check box to
include notional loads in this type for direct analysis.
Notional loads are included by default only in dead, live,
roof life, snow, and ice load types.
-
Select the appropriate Combination Rule option
for this load type:
-
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.
-
For each combination (i.e., row) in the table, specify the load
multiplier for the load types present in that load combination.
-
To save the changes to a table, click
Update Table.
-
Repeat steps 3, 4, and 5 individually as needed to specify the
load combinations for the code category.
-
Click
Close.
You can now generate load combinations using this rule set.