2001 ASD Supplements - unprotected PDF - American Wood Council

ASD STRUCTURAL LUMBER SUPPLEMENTL-21Table 5.4aBending Member (Joist) Capacity (M', C r M', V', and EI ), StructuralLumber2-inch nominal thickness (1.5 inch dry dressed size), C D= 1.0, C L= 1.0.Select Structural No. 2Size (b x d) M' C rM' V' x 10 6 EI M' C rM' V' x 10 6 EINominal Actual (Single) (Repetitive) (Repetitive)Species (in.) (in.) lb.-in. lb.-in. lbs. lb.-in. 2 lb.-in. lb.-in. lbs. lb.-in. 22 x 4 1.5 x 3.5 6,890 7,920 630 10 4,130 4,750 630 92 x 6 1.5 x 5.5 14,700 17,000 990 40 8,850 10,200 990 33Douglas Fir-Larch 2 x 8 1.5 x 7.25 23,700 27,200 1,310 91 14,200 16,300 1,310 762 x 10 1.5 x 9.25 35,300 40,600 1,670 188 21,200 24,400 1,670 1582 x 12 1.5 x 11.25 47,500 54,600 2,030 338 28,500 32,700 2,030 2852 x 4 1.5 x 3.5 6,430 7,400 525 9 3,900 4,490 525 72 x 6 1.5 x 5.5 13,800 15,900 825 33 8,360 9,610 825 27Hem-Fir 2 x 8 1.5 x 7.25 22,100 25,400 1,090 76 13,400 15,400 1,090 622 x 10 1.5 x 9.25 32,900 37,900 1,390 158 20,000 23,000 1,390 1292 x 12 1.5 x 11.25 44,300 50,900 1,690 285 26,900 30,900 1,690 2312 x 4 1.5 x 3.5 8,730 10,000 613 10 4,590 5,280 613 92 x 6 1.5 x 5.5 19,300 22,200 963 37 9,450 10,900 963 33Southern Pine 2 x 8 1.5 x 7.25 30,200 34,800 1,270 86 15,800 18,100 1,270 762 x 10 1.5 x 9.25 43,900 50,400 1,620 178 22,500 25,800 1,620 1582 x 12 1.5 x 11.25 60,100 69,100 1,970 320 30,800 35,500 1,970 2852 x 4 1.5 x 3.5 5,740 6,600 473 8 4,020 4,620 473 82 x 6 1.5 x 5.5 12,300 14,100 743 31 8,600 9,890 743 29Spruce-Pine-Fir 2 x 8 1.5 x 7.25 19,700 22,700 979 71 13,800 15,900 979 672 x 10 1.5 x 9.25 29,400 33,800 1,250 148 20,600 23,700 1,250 1392 x 12 1.5 x 11.25 39,600 45,500 1,520 267 27,700 31,800 1,520 249Table 5.4bBending Member (Joist) Capacity (M', C r M', V', and EI ), StructuralLumber4-inch nominal thickness (3.5 inch dry dressed size), C D= 1.0, C L= 1.0.5MEMBER SELECTION TABLESSelect Structural No. 2Size (b x d) M' C rM' V' x 10 6 EI M' C rM' V' x 10 6 EINominal Actual (Single) (Repetitive) (Repetitive)Species (in.) (in.) lb.-in. lb.-in. lbs. lb.-in. 2 lb.-in. lb.-in. lbs. lb.-in. 24 x 4 3.5 x 3.5 16,100 18,500 1,470 24 9,650 11,100 1,470 204 x 6 3.5 x 5.5 34,400 39,600 2,310 92 20,600 23,700 2,310 78Douglas Fir-Larch 4 x 8 3.5 x 7.25 59,800 68,800 3,050 211 35,900 41,300 3,050 1784 x 10 3.5 x 9.25 89,800 103,000 3,890 439 53,900 62,000 3,890 3704 x 12 3.5 x 11.25 122,000 140,000 4,730 789 73,100 84,100 4,730 6644 x 4 3.5 x 3.5 15,000 17,300 1,230 20 9,110 10,500 1,230 164 x 6 3.5 x 5.5 32,100 36,900 1,930 78 19,500 22,400 1,930 63Hem-Fir 4 x 8 3.5 x 7.25 55,800 64,200 2,540 178 33,900 39,000 2,540 1444 x 10 3.5 x 9.25 83,900 96,400 3,240 369 50,900 58,500 3,240 3004 x 12 3.5 x 11.25 114,000 131,000 3,940 664 69,000 79,400 3,940 5404 x 4 3.5 x 3.5 20,400 23,400 1,430 23 10,700 12,300 1,430 204 x 6 3.5 x 5.5 45,000 51,700 2,250 87 22,100 25,400 2,250 78Southern Pine 4 x 8 3.5 x 7.25 77,600 89,200 2,960 200 40,500 46,600 2,960 1784 x 10 3.5 x 9.25 113,000 129,000 3,780 416 57,600 66,300 3,780 3694 x 12 3.5 x 11.25 154,000 177,000 4,590 748 79,200 91,100 4,590 6644 x 4 3.5 x 3.5 13,400 15,400 1,100 19 9,380 10,800 1,100 184 x 6 3.5 x 5.5 28,700 33,000 1,730 73 20,100 23,100 1,730 68Spruce-Pine-Fir 4 x 8 3.5 x 7.25 49,800 57,300 2,280 167 34,900 40,100 2,280 1564 x 10 3.5 x 9.25 74,900 86,100 2,910 346 52,400 60,300 2,910 3234 x 12 3.5 x 11.25 102,000 117,000 3,540 623 71,100 81,700 3,540 581AMERICAN FOREST & PAPER ASSOCIATION