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Predefined Load Cases

Predefined Load Cases is a tool that helps to preview and create Load Sets with chosen settings and according to standards EN 13001 and Eurocode0.

To create Predefined Load Cases, execute Jobs - Job - Predefined Load Cases from the tree:

Predefined_Load_Cases

The following options have to be defined:

Use Search to filter loads by text.

- clear all filters;

- if the checkbox is checked, load sets will be created after pressing OK button;

Note: In case that categories are set and the checkbox is checked, but no sets can be created, the following warning will be displayed on pressing OK button:

Not_All_Loads_Included_Warning

- if the checkbox is checked, duplicate load sets will be created after pressing OK button. In addition to this duplicate load combinations will be displyed after pressing Preview button.

Duplicate combinations are such combinations that have got the same category and all the factors. They may occure when trying to create combinations according to Eurocode0 standard within Set B/Set B-b and Accidental/Seismic cases. (Open an Information Window for detailed combinations' rules)

Example: Assuming you have got the following initial settings:

Duplicate_Initial_Settings

The following duplicates may appear (check the highlighted combinations):

Duplicate_Example

This means that if "Show Duplicate Combinations" is not checked, on pressing Preview or OK buttons, these messages will be displayed:

Duplicate_Warnings

If you decide to check "Show Duplicate Combinations", all duplicates will be both displayed in the Preview window and created after pressing OK. Otherwise combinations will be created in the order that is shown in Choose Cases Window. For the example mentioned above: all combinations for Set B will be created (as it comes before Set B-b) and only those combinations that do not dublicate the created ones will be created for Set B-b (if there are such):

Duplicate_Warnings

Note: If different positions are set to loads, they are not duplicates within the same case!

Duplicate_Different_Positions

To summarize, if you want to create duplicate combinations you can either simply check "Show Duplicate Combinations" or copy Predefind Load Cases with the same settings from the tree and choose other cases to be created. By doing this, you will be able to create duplicate combinations through different Predefined Load Cases:

Duplicate_From_Tree

Note: In case every individual load's category is set to "None", a relevant error message will appear.

No_categories_Set_Error

To edit created predefined load case, execute Jobs - Job - Predefined Load Cases - Edit from the tree.

- open the window with information about chosen standard;

Information Window

Look of the Information Window for EN 13001:

Predefined_Load_Cases_Information

Look of the Information Window for Eurocode0:

Predefined_Load_Cases_Information

Dynamic Factors

Dynamic Factors button opens a window where dynamics factors may be edited. By default dynamic factors values are set according to the chosen standard.

Look of the Dynamic Factor Window for EN 13001:

Dynamic_Factors

Look of the Dynamic Factor Window for Eurocode0:

Dynamic_Factors

Note: In Preview Window dynamic factors for Eurocode0 will be labeled as ψi,j where i - stands for column number beginning with 0 and j - for row number beginning with 1.

Example: For the table given above ψ2,7 = 0.3

If there is a need to transfer values of dynamic factors within different Predefined Load Cases, it can be done with the help of files.

Dynamic_Factors - press to import dynamic factors from the file with the corresponding content.

Dynamic_Factors - press to export dynamic factors to the file and choose the destination directory, where they should be stored.

The dynamic factors are stored in a JSON file. Here is how a part of the imported data looks like for EN 13001:

Dynamic_Factors

And for Eurocode0:

Dynamic_Factors

To sum up, compare the look of the valid and corrupted files:

Dynamic_Factors

If you are not sure what the correct file looks like, export dynamic factors one more time and then alter them the way you need.

Cases

Choose Cases button opens a window where necessary cases for load sets may be chosen.

Look of the Cases Window for EN 13001:

Cases

Look of the Cases Window for Eurocode0:

Cases

Preview

Preview button opens a window where possible load sets may be previewed before being created.

Load_Sets_Preview

To find out a full title of the load hover a mouse over the table's header:

Load_Sets_Preview

Note: In case any individual load's category is set to "None", a relevant warning will appear before Preview window is opened.

Not_All_Categories_Set_Warning

If the individual load's category is set to "None", that individual load will not be displayed in the table.

Note: In case there is no load set into which an individual load with a particular category can be put, a relevant warning will appear before Preview window is opened.

Not_All_Loads_Included_Warning

If the individual load can not be put into any load set, it will not be shown in the table either.

To preview load sets of created predefined load case, execute Jobs - Job - Predefined Load Cases - Preview from the tree.

Common Options

- export the table to Excel.

- copy the table to the clipboard.