Design the tension members of the roof truss shown in Figure P3.8-4. Use, double-angle shapes throughout and assume
Metal deck: 4 psf of roof surface
Build-up roof: 12 psf of roof surface
Purlins: 6 psf of roof surface (estimated)
Snow: 18 psf of horizontal projection
Truss weight: 5 psf of horizontal projection (estimated)
a. Use LRFD.
b. Use ASD.
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