Question: timber design Sion and bending in the member using ASD. b. Check the combined tension and bending in the member using LRFD. 7.6 The truss

timber design Sion and bending in the member using ASD. b.

timber design

Sion and bending in the member using ASD. b. Check the combined tension and bending in the member using LRFD. 7.6 The truss in Figure 7.B supports a roof dead load of 16 psf. Trusses are spaced 24-in. o.C., and the roof live load is to be in accordance with the IBC. Lumber is No. 2 DF-L. Fasteners do not reduce the area of the members. Truss joints are assumed to be pin- connected. Cm = 1.0, C = 1.0, and C; = 1.0. 10.5' = = 42 FIGURE 7.B Find: a. The required member size for the tension (bottom) chord using ASD. b. The required member size for the tension (bottom) chord using LRFD. 7.7 Repeat Prob. 7.6 except that in addition there is a ceiling dead load applied to the bottom chord of 8 psf (16 lb/ft). Neglect deflection. Assume lateral bracing of the compression edge of the bottom chord is provided at the ends and at the mid-span of the truss. Also hoathing is attached to the tension edge of the bottom chord

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