HomeMy WebLinkAboutENGINEERING CALCS - 97-00022 - Western Watts - Call CenterDesign Intelligence
Engineering Calculations Summary
4
Date: July 21, 1997
Subject: 80 East Main Truss Beam Structural Analysis
Customer: Western Watts
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The purpose of these calculations is to Verify the capacity of the exiting truss beams supporting the roof at SO
East Main Rexburg, Idaho. The truss beams vanes in depth from X1.5 inches to 48 inches. All measurements
shown in the calculations were provided by westernWatts. However, truss beam caw.ration was verified by
me. Truss beams are located 16" an center and the tap cord is fully supported laterally by the roof sheathing.
Matefials: Douglas Fir - Rouah Sawn Timber
D esign Loads
Snow = 40 Psf
Dead Load - 19 psf (estimated - see calculations)
Assumptions.0
1. The Truss Beam connections are lightly nailed allowing for truss type (axial) reaciivzls.
2. The 3/8"' by 8" vertical support carries no loads and is there to maintain the
not entirely True but is conservative.
3. Wall supports are adequate based an visual verification.
Summary;
depth of the Truss beam. This is
the 'Tres Beam was analyzed using accepted truss analysis procedures. All stresses produced are within
USC x.994 ailowablesd
Bottom Chord bridging is required at third points.
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