1996 LRFD Supplements - unprotected PDF - American Wood Council

GUIDELINELRFDTOSTRUCTURALLRFD FOR STRUCTURALLUMBER SUPPLEMENTCOMPOSITE LUMBER 4545Table 5.4Bending Member (Joist) Selection Tables, Structural Lumber2-inch nominal thickness (1.5 inch dry dressed size), λ = 0.80, φ b= 0.85, φ v= 0.75.Select Structural No. 2Size (b x d) 6≅ b M' 6≅ b C r M' 6≅ v V' EI 6≅ b M' 6≅ b C r M' 6≅ v V' EINominal Actual (Single) (rep) 1000 (rep) 1000Species (in) (in) kip-in kip-in kips kip-in 2 kip-in kip-in kips kip-in 22 x 4 1.5 x 3.5 11.5 13.2 0.57 10.2 6.9 8.0 0.57 8.62 x 6 1.5 x 5.5 24.6 28.3 0.89 39.5 14.8 17.1 0.89 33.3Douglas Fir-Larch 2 x 8 1.5 x 7.25 39.5 45.4 1.17 90.5 23.8 27.4 1.17 76.22 x 10 1.5 x 9.25 58.9 67.7 1.50 188.0 35.5 40.8 1.50 158.32 x 12 1.5 x 11.25 79.2 91.1 1.82 338.2 47.8 54.9 1.82 284.82 x 4 1.5 x 3.5 11.1 12.8 0.46 8.6 6.7 7.8 0.46 7.02 x 6 1.5 x 5.5 23.8 27.4 0.73 33.3 14.4 16.6 0.73 27.0Hem-Fir 2 x 8 1.5 x 7.25 38.2 43.9 0.96 76.2 23.2 26.6 0.96 61.92 x 10 1.5 x 9.25 57.0 65.5 1.22 158.3 34.6 39.7 1.22 128.62 x 12 1.5 x 11.25 76.6 88.1 1.49 284.8 46.5 53.4 1.49 231.42 x 4 1.5 x 3.5 15.1 17.3 0.61 9.6 7.9 9.1 0.55 8.62 x 6 1.5 x 5.5 33.3 38.3 0.86 37.4 16.4 18.8 0.86 33.3Southern Pine 2 x 8 1.5 x 7.25 52.2 60.0 1.13 85.7 27.3 31.3 1.13 76.22 x 10 1.5 x 9.25 75.8 87.2 1.44 178.1 38.8 44.7 1.44 158.32 x 12 1.5 x 11.25 103.9 119.5 1.76 320.4 53.4 61.4 1.76 284.82 x 4 1.5 x 3.5 9.9 11.4 0.42 8.0 6.9 8.0 0.42 7.52 x 6 1.5 x 5.5 21.3 24.4 0.66 31.2 14.8 17.1 0.66 29.1Spruce-Pine-Fir 2 x 8 1.5 x 7.25 34.1 39.2 0.87 71.5 23.8 27.4 0.87 66.72 x 10 1.5 x 9.25 50.9 58.5 1.11 148.4 35.5 40.8 1.11 138.52 x 12 1.5 x 11.25 68.4 78.7 1.35 267.0 47.8 54.9 1.35 249.2Table 5.4Bending Member (Joist) Selection Tables, Structural Lumber4-inch nominal thickness (3.5 inch dry dressed size), λ = 0.80, φ b= 0.85, φ v= 0.75.5MEMBER SELECTION TABLESSelect Structural No. 2Size (b x d) 6≅ b M' 6≅ b C r M' 6≅ v V' EI 6≅ b M' 6≅ b C r M' 6≅ v V' EINominal Actual (Single) (rep) 1000 (rep) 1000Species (in) (in) kip-in kip-in kips kip-in 2 kip-in kip-in kips kip-in 24 x 4 3.5 x 3.5 26.8 30.8 1.32 23.8 16.2 18.6 1.32 20.04 x 6 3.5 x 5.5 57.4 66.0 2.08 92.2 34.6 39.8 2.08 77.6Douglas Fir-Larch 4 x 8 3.5 x 7.25 99.7 114.7 2.74 211.2 60.2 69.2 2.74 177.84 x 10 3.5 x 9.25 149.9 172.4 3.50 438.6 90.4 104.0 3.50 369.34 x 12 3.5 x 11.25 203.2 233.7 4.25 789.0 122.6 141.0 4.25 664.54 x 4 3.5 x 3.5 25.9 29.8 1.08 20.0 15.7 18.1 1.08 16.34 x 6 3.5 x 5.5 55.5 63.9 1.69 77.6 33.7 38.7 1.69 63.1Hem-Fir 4 x 8 3.5 x 7.25 96.5 111.0 2.23 177.8 58.5 67.3 2.23 144.54 x 10 3.5 x 9.25 145.0 166.7 2.85 369.3 88.0 101.2 2.85 300.14 x 12 3.5 x 11.25 196.6 226.1 3.47 664.5 119.3 137.2 3.47 539.94 x 4 3.5 x 3.5 35.2 40.5 1.42 22.5 18.5 21.3 1.27 20.04 x 6 3.5 x 5.5 77.8 89.4 2.00 87.3 38.2 43.9 2.00 77.6Southern Pine 4 x 8 3.5 x 7.25 133.9 154.0 2.64 200.1 70.0 80.4 2.64 177.84 x 10 3.5 x 9.25 194.5 223.7 3.37 415.5 99.7 114.6 3.37 369.34 x 12 3.5 x 11.25 266.7 306.7 4.10 747.5 137.0 157.5 4.10 664.54 x 4 3.5 x 3.5 23.2 26.7 0.98 18.8 16.2 18.6 0.98 17.54 x 6 3.5 x 5.5 49.6 57.0 1.54 72.8 34.6 39.8 1.54 67.9Spruce-Pine-Fir 4 x 8 3.5 x 7.25 86.2 99.1 2.03 166.7 60.2 69.2 2.03 155.64 x 10 3.5 x 9.25 129.5 148.9 2.59 346.3 90.4 104.0 2.59 323.24 x 12 3.5 x 11.25 175.6 202.0 3.15 622.9 122.6 141.0 3.15 581.4