User Guide

RISA-3D User’s Guide
Version 5.0
114
for directional effects from RSA’s in two directions at the same time. An
alternative to this method is an SRSS combination, which we will mention briefly.
The SRSS flag indicates the RSA results from different directions are to be
combined using an SRSS combination. This will generally ensure that reasonable
maximum responses are obtained. Setting the SRSS flag will cause the RSA
results to be ALL POSITIVES. The flag itself is entered as a “+” or “-” to
indicate whether the combined RSA results are to be added (+) or subtracted (-)
from the other loads in the combination. We haven’t used the SRSS flag here.
Click on the Window Toolbar. When the solution is complete click
on the Tiling button, select Member Steel Results and click OK.
At this point, we're finished with the tutorial. If you like, you can go back and
increase member sizes, re-run the dynamics, solve different Load Combinations,
experiment with the plot; whatever you like.
To leave RISA-3D at this point, select Exit from the File menu.