User Guide

Tutorial 3 - Loading
Version 5.0 87
Click in the next cell down which represents BLC 2 and select the down arrow
again and pick the “WL (Wind Load)” category.
In the same manner assign the third load case to the “LL (Live Load)” category
and then assign BLC 4 and BLC 5 to the “DL (Dead Load)” category.
The spreadsheet is complete and looks like this:
Close it by clicking the in the titlebar.
Load Combinations
The last step in applying loads is to define how the loads are to be combined. It is
these combinations that are analyzed when we solve the model and view results.
Most standard code combinations are already built into RISA-3D. We will apply
the ASCE minimum design loads and then modify them.
From the Spreadsheet menu choose Load Combinations. On right side of the
Window Toolbar click the arrow on the drop down list and select the third
choice: “ASCE 1998 ASD”. Now click the button next to the list. Stretch
the bottom of the window down to view the 20 combinations that were created.
Note
• If your screen resolution is set to 800x600 or less then you will not be able to see the button and
the right side of the window toolbar will appear to be chopped off as shown below: To correct this,
you should change your screen resolution to 1024x768 or better. This can generally be done within
the Display setting in the Windows Control Panel.