A pin-connected wood truss is loaded and supported as shown. Determine the axial force produced in member GH if PB = 900 lb, PC = 2,000 lb, PD = 3,200 lb, L = 6 ft, and h = 8 ft. Positive choices indicate tension. Negative choices indicate compression.

Determine the ASD adjusted design compression strength perpendicular to grain, Fc⊥’, for the following beam. Assume normal temperatures, bending about the strong axis, and no incising. Ignore the weight of the beam.Load:PD = 400 lbPLr = 1,440 lbLoad combination:D + LrSpan:L = 14 ftMember size:4 x 12Stress grade and species:No. 1 & Better Douglas Fir-LarchUnbraced length:lu = 0Moisture content:MC < 19 percentLive load deflection limit:Allow. Δ ≤ L/360

Determine the ASD adjusted design bending strength, Fb’, for the following beam. Assume normal temperatures, bending about the strong axis, and no incising. Ignore the weight of the beam.Load:wD = 200 lb/ftwLr = 180 lb/ftLoad combination:D + LrSpan:L = 12 ftMember size:4 x 12Stress grade and species:No. 1 Douglas Fir-LarchUnbraced length:lu = 0Moisture content:MC < 19 percentLive load deflection limit:Allow. Δ ≤ L/360

A 2 x 10 rafter frames into a 2 x 4 stud wall. The load is a combination of PD = 190 lb and PS = 430 lb. Consider the D + S load combination. Determine the ASD actual bearing stress fc⊥ in the top plate of the wall.

Determine the volume factor, Cv, for a 3.125” x 21” Douglas Fir glulam that is 21 feet long and simply supported.

Determine the volume factor, Cv, for a 3.125” x 21” Douglas Fir glulam that is 32 feet long and simply supported.

What is the wet service factor, CM, for the tensile strength of softwood glulams?

For glulams, the stress interaction factor would be used to determine which of the following adjusted design values? Select all that apply.

Determine the maximum actual bending stress in the following beam. Assume normal temperatures, bending about the strong axis, and no incising. Ignore the weight of the beam.Load:PD = 520 lbPLr = 2,240 lbLoad combination:D + LrSpan:L = 9 ftMember size:4 x 8Stress grade and species:Select Structural Douglas Fir-LarchUnbraced length:lu = 0Moisture content:MC < 19 percentLive load deflection limit:Allow. Δ ≤ L/360

Determine the maximum actual shear stress in the following beam. Do not reduce the shear based on NDS Section 3.4.3. Assume normal temperatures, bending about the strong axis, and no incising. Ignore the weight of the beam.Load:PD = 200 lbPLr = 2,240 lbLoad combination:D + LrSpan:L = 13 ftMember size:4 x 8Stress grade and species:No. 1 & Better Douglas Fir-LarchUnbraced length:lu = 0Moisture content:MC > 19 percentLive load deflection limit:Allow. Δ ≤ L/360