Define Loads Cases

Form:  Define Load Cases, Load Case Tree

A load case defines how loads are to be applied to the structure, and how the structural response is to be calculated. An unlimited number of named load cases of any type can be defined in CSi Bridge. The load case(s) is selected when the model is analyzed.

Note: Load patterns by themselves do not create any response (deflections, stresses, and so forth). A load case must be defined to apply the load.

Before defining load cases, define any load patterns or functions that will be needed:

Tip: Every time a new load pattern is defined, the program automatically creates a corresponding linear static load case of the same name that applies the load. For a new model, the program creates a default load pattern called DEAD, which applies the self weight of the structure. The corresponding linear static analysis pattern is also called DEAD.

Click the Analysis > Load Cases> Expand arrow command, or on the Bridge Wizard select the Load Cases item and click the Define/Show Load Cases button, to access the Define Load Cases form and add, modify, or delete cases.  Use the following buttons on the form to achieve the required action:

Note: If you change the definition of an load case that has already been run, results for that case and any case that depends upon it will be deleted.

Note:  The Show Load Case Tree button also is included on the Set Load Cases to Run form.