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5.1
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Similar to the step that we did to obtain the truss
forces, obtaining the stresses in STM Elements and Nodes is done
by clicking Run Design Calculations from the Analysis
menu or by clicking the  button from the Standard toolbar. Again, the window displaying the analysis progress shown in Figure
22 then
appears. After the analysis is completed, the forces for each STM Element and
the corresponding Stress Ratios are shown in the display window (Figure
31).
Figure 31 CAST Window after Step 5.1
(Click here
to view a larger image)
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5.2
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What we need to do now is to check if stresses in the STM Elements and Nodes
are within allowable limits. Our design is acceptable because all the stresses,
given in terms of Stress Ratios, are less than 1.0.
In addition, all Effective Widths provided must be within the Boundaries.
If this were not the case,
you must go back to redefine the Widths of STM Elements and Nodes as described
in Step 4.5 and checked the stresses again.
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