Loading Class Manual for intelliVIEW – Chapter 4
Calculating Simple Truss Reactions
Now that you understand PSF and PLF and how those loads apply to a truss, the next step is to
calculate simple reactions. The formula shown below illustrates how to calculate a simple
reaction. This formula applies to all non-girder trusses at any spacing.
Note: when the trusses are spaced 2' O.C., the spacing and the 2 Supports cancel each other.
Therefore, to calculate the reaction of a 10' overall span non-girder truss at 2'0" O.C. using a 40
PSF total load, you would multiply 10' by 40 PSF, which results in what reaction?
Calculating Uniform Load
