Determine the bending reference design value for Select Structural visually graded Douglas Fir-Larch dimension lumber.

What is the incising factor, Ci, for the modulus of elasticity of a sawn-lumber member?

All of the following species of trees may be included in the “Hem-Fir” Species Combination except _______.

What is the flat use factor, Cfu, for visually graded dimension lumber, except Southern Pine, that is 10 in. wide and 2 in. thick?

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:PD = 440 lbPLr = 1,920 lbLoad combination:D + LrSpan:L = 8 ftMember size:4 x 10Stress grade and species:Select Structural Douglas Fir-LarchUnbraced length:lu = 0Moisture content:MC < 19 percentLive load deflection limit:Allow. Δ ≤ L/360

A 4 x 10 rafter frames into a 3 x 8 stud wall. The load is a combination of PD = 200 lb and PS = 660 lb. Consider the D + S load combination. Determine the ASD actual bearing stress fc⊥ in the top plate of the wall.

Determine the maximum bending moment 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 = 2,080 lbLoad combination:D + LrSpan:L = 9 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

What is the section modulus, Sxx, about the X-X axis for 2 x 12 dimension lumber?

Determine the maximum bending moment in the following beam. Assume normal temperatures, bending about the strong axis, and no incising. Ignore the weight of the beam.Load:PD = 560 lbPLr = 1,440 lbLoad combination:D + LrSpan:L = 11 ftMember size:4 x 12Stress grade and species:Select Structural Douglas Fir-LarchUnbraced length:lu = 0Moisture content:MC < 19 percentLive load deflection limit:Allow. Δ ≤ L/360

For deflection calculations, the adjusted modulus of elasticity Ex’ for a hardwood glulam beam 16F-V2 with ASD load combination (D + 0.6W), under 16% moisture content, and a constant temperature of 115°F is _______.