The two columns in the following floor framing plan support only loads from a bowling alley on the second floor. The city has approved floor live load reductions for this particular building. A dead load of 12.9 psf acts on the tributary area of the columns. Combine this with the reduced floor live load, and then determine the total load that acts on one of the columns.

Determine the maximum actual deflection of the following beam. Assume normal temperatures, bending about the strong axis, and no incising. Ignore the weight of the beam.Load:wD = 100 lb/ftwLr = 450 lb/ftLoad combination:D + LrSpan:L = 11 ftMember size:4 x 12Stress grade and species:No. 2 Douglas Fir-LarchUnbraced length:lu = 0Moisture content:MC > 19 percentLive load deflection limit:Allow. Δ ≤ L/360

You have been tasked with designing a one-story fire station. The mean roof height is 15 ft, and the roof angle is 20 degrees. The basic wind speed has been provided by the local building authority and is 115 mph. Assume that exposure category B is applicable and that the building is not located on a hill or an escarpment. Also assume that the building is an enclosed simple diaphragm and that the building meets all eight conditions listed in ASCE 7-10 section 28.6.2. Determine the simplified design wind pressure, ps30, on Zone A of the Main Wind Force Resisting System using the Simplified Envelope Procedure.

A wood column is pin connected at its top and bottom. Determine the controlling slenderness ratio, le/d, for the column. Assume normal temperatures, no incising, and that all loads are downward. Ignore the weight of the member.Load:PD = 4,000 lbPL = 4,000 lbPLr = 1,500 lbPS = 3,000 lbPR = 2,000 lbPW = 3,500 lbPE = 0 lbLength:L = 11 ftMember size:4 x 10Stress grade and species:No. 2 Douglas Fir-LarchUnbraced length:lu = L = 11 ftMoisture content:MC < 19 percent

Use APA Technical Note Q225 entitled Load-Span Tables for APA Structural-Use Panels and ASD procedures to answer the following question.The spacing of rafters in a roof is 16-in. o.c. Roof dead load = 9 psf. Snow load = 63 psf. Roof sheathing is to be an APA rated plywood sheathing, and panels are to be oriented in the strong direction. The load is governed by deflection limits of L/240 for snow load and L/180 for total load. Only consider these limits. Assume multi-span, normal duration of load, dry conditions, and panels 24 inches or wider. Would a panel with a span rating of 32/16 be adequate?

Determine the ASD adjusted modulus of elasticity, E’, for the following beam. Assume normal temperatures, bending about the strong axis, and no incising. Ignore the weight of the beam.Load:PD = 600 lbPLr = 1,760 lbLoad combination:D + LrSpan:L = 10 ftMember size:4 x 14Stress grade and species:No. 2 Douglas Fir-LarchUnbraced length:lu = 0Moisture content:MC > 19 percentLive load deflection limit:Allow. Δ ≤ L/360

If a building contains columns that are evenly spaced every 29 feet in the north-south direction and 23 feet in the east-west direction, the tributary area of a typical exterior column would be _______.

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:wD = 140 lb/ftwLr = 390 lb/ftLoad combination:D + LrSpan:L = 9 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

You have been tasked with designing a one-story barn. The mean roof height is 25 ft, and the roof angle is 15 degrees. The basic wind speed has been provided by the local building authority and is 120 mph. Assume that exposure category D is applicable and that the building is not located on a hill or an escarpment. Also assume that the building is an enclosed simple diaphragm and that the building meets all eight conditions listed in ASCE 7-10 section 28.6.2. Determine the simplified design wind pressure, ps30, on Zone A of the Main Wind Force Resisting System using the Simplified Envelope Procedure.

A wood member is loaded as shown. Using ASD, determine the maximum axial stress in the member. Assume normal temperatures, no incising, and that all loads act in the directions shown. Ignore the weight of the member.Load:PD = 5,000 lbPL = 0 lbPLr = 0 lbPS = 0 lbPR = 0 lbPW = 8,000 lbPE = 8,500 lbQD = 2,500 lbQL = 2,000 lbQLr = 4,500 lbQS = 3,000 lbQR = 2,500 lbQW = 0 lbQE = 0 lbSpan:L = 12 ft Member size:4 x 12 Stress grade and species:No. 1 & Better Douglas Fir-Larch Unbraced length:lu = L/2 = 6 ft Moisture content:MC < 19 percent