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Girders G1, G2 and G3 in the roof framing plan support loads from purlin P1. Use ASD to determine the maximum bending moment in girder G2. The roof dead load is D = 14 psf.    The reduced roof live load for this girder is Lr = 12 psf.

The dimensions for 2×10 standard dressed (S4S) sawn lumber is _______.

What is the temperature factor, Ct, for the bending strength of sawn lumber that is kept wet with a constant temperature of 90°F?

Determine the ASD adjusted design tension strength, Ft’, 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 = 1,280 lbLoad combination:D + LrSpan:L = 12 ftMember size:4 x 6Stress grade and species:No. 1 Douglas Fir-LarchUnbraced length:lu = 0Moisture content:MC < 19 percentLive load deflection limit:Allow. Δ ≤ L/360

Use the MWFRS Envelope Procedure in ASCE 7-10 Chapter 28, Part 1 to answer this question. Assume that the building meets the conditions described therein. You have been tasked with designing an open building. The mean roof height is 15 ft, and the roof angle is 5 degrees. The basic wind speed provided by the local building authority is 130 mph. Assume that exposure category C is applicable and that the building is not located on a hill or an escarpment. Determine the velocity pressure, qh.

Use the MWFRS Envelope Procedure in ASCE 7-10 Chapter 28, Part 1 to answer this question. Assume that the building meets the conditions described therein. You have been tasked with designing a partially-enclosed building. The mean roof height is 15 ft, and the roof angle is 5 degrees. The basic wind speed provided by the local building authority is 130 mph. Assume that exposure category C is applicable and that the building is not located on a hill or an escarpment. Determine the velocity pressure, qh.

Determine the tension parallel to grain reference design value for 2 in. wide Select Structural visually graded Southern Pine dimension lumber.

Use the MWFRS Envelope Procedure in ASCE 7-10 Chapter 28, Part 1 to answer this question. Assume that the building meets the conditions described therein. You have been tasked with designing an open building. The mean roof height is 20 ft, and the roof angle is 30 degrees. The basic wind speed provided by the local building authority is 135 mph. Assume that exposure category D is applicable and that the building is not located on a hill or an escarpment. Determine the external pressure coefficient GCpf on Zone 3 for Load Case A.

What is the flat use factor, Cfu, for visually graded dimension lumber, except Southern Pine, that is 6 in. wide and 2 in. thick?

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 = 320 lbPLr = 1,920 lbLoad combination:D + LrSpan:L = 7 ftMember size:4 x 10Stress grade and species:No. 1 & Better Douglas Fir-LarchUnbraced length:lu = 0Moisture content:MC < 19 percentLive load deflection limit:Allow. Δ ≤ L/360