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PLOTS OF AVAILABLE FLEXURAL STRENGTH VS. UNBRACED LENGTH 3 –
W40x
W40x
W40x
W36X
W36X
W36X
W36X
LRFD
W-Shapes^ Table 3-
Mkip-ftASDn /Ω b kip-ft φ b Mn Available Moment vs. Unbraced Length
FCyb == 50 ksi 1 12000 11550 11100 10650 10200 9750 9300 8850 8400 7950 7500
Unbraced Length (3-ft increments)
Available Moment,
M/Ωn^ b^
(60 kip-ft increments) and
φM(90 kip-ft increments)^ b^ n^
3 –100 DESIGN OF FLEXURAL MEMBERS
LRFD
Table 3-10 (continued)W-Shapes
Mnkip-ftASD /Ω b kip-ft φ b Mn Available Moment vs. Unbraced Length
FCyb == 50 ksi 1 7500 7200 6900 6600 6300 6000 5700 5400 5100 4800 4500
Unbraced Length (1-ft increments)
Available Moment,
M/Ωn^ b^
(40 kip-ft increments) and
φM(60 kip-ft increments)^ b^ n^
3 –102 DESIGN OF FLEXURAL MEMBERS
LRFD
Table 3-10 (continued)W-Shapes
Mnkip-ftASD /Ω b kip-ft φ b Mn Available Moment vs. Unbraced Length
FCyb == 50 ksi 1 4500 4350 4200 4050 3900 3750 3600 3450 3300 3150 3000
Unbraced Length (1-ft increments)
Available Moment,
M/Ωn^ b^
(20 kip-ft increments) and
φM(30 kip-ft increments)^ b^ n^
PLOTS OF AVAILABLE FLEXURAL STRENGTH VS. UNBRACED LENGTH 3 –
LRFD
Table 3-10 (continued)W-Shapes
Mkip-ftASDn /Ω b kip-ft φ b Mn Available Moment vs. Unbraced Length
FCyb == 50 ksi 1 4500 4350 4200 4050 3900 3750 3600 3450 3300 3150 3000
Unbraced Length (1-ft increments)
Available Moment,
M/Ωn^ b^
(20 kip-ft increments) and
φM(30 kip-ft increments)^ b^ n^
PLOTS OF AVAILABLE FLEXURAL STRENGTH VS. UNBRACED LENGTH 3 –
LRFD
Table 3-10 (continued)W-Shapes
Mkip-ftASDn /Ω b kip-ft φ b Mn Available Moment vs. Unbraced Length
FCyb == 50 ksi 1 3000 2940 2880 2820 2760 2700 2640 2580 2520 2460 2400
Unbraced Length (1-ft increments)
Available Moment,
M/Ωn^ b^
(8 kip-ft increments) and
φM^ (12 kip-ft increments)^ b^ n^
3 –106 DESIGN OF FLEXURAL MEMBERS
LRFD
Table 3-10 (continued)W-Shapes
Mnkip-ftASD /Ω b kip-ft φ b Mn Available Moment vs. Unbraced Length
FCyb == 50 ksi 1 2400 2340 2280 2220 2160 2100 2040 1980 1920 1860 1800
Unbraced Length (1-ft increments)
Available Moment,
Mn/Ω^ b^
(8 kip-ft increments) and
φMn(12 kip-ft increments)^ b^
3 –108 DESIGN OF FLEXURAL MEMBERS
LRFD
Table 3-10 (continued)W-Shapes
Mnkip-ftASD /Ω b kip-ft φ b Mn Available Moment vs. Unbraced Length
FCyb == 50 ksi 1 1800 1770 1740 1710 1680 1650 1620 1590 1560 1530 1500
Unbraced Length (1-ft increments)
Available Moment,
M/Ωn^ b^
(4 kip-ft increments) and
φM(6 kip-ft increments)^ b^ n^
PLOTS OF AVAILABLE FLEXURAL STRENGTH VS. UNBRACED LENGTH 3 –
LRFD
Table 3-10 (continued)W-Shapes
Mkip-ftASDn /Ω b kip-ft φ b Mn Available Moment vs. Unbraced Length
FCyb == 50 ksi 1 1800 1770 1740 1710 1680 1650 1620 1590 1560 1530 1500
Unbraced Length (1-ft increments)
Available Moment,
M/Ωn^ b^
(4 kip-ft increments) and
φM(6 kip-ft increments)^ b^ n^
PLOTS OF AVAILABLE FLEXURAL STRENGTH VS. UNBRACED LENGTH 3 –
LRFD
Table 3-10 (continued)W-Shapes
Mkip-ftASDn /Ω b kip-ft φ b Mn Available Moment vs. Unbraced Length
FCyb == 50 ksi 1 1500 1485 1470 1455 1440 1425 1410 1395 1380 1365 1350
Unbraced Length (1-ft increments)
Available Moment,
M/Ωn^ b^
(2 kip-ft increments) and
φM(3 kip-ft increments)^ b^ n^
3 –112 DESIGN OF FLEXURAL MEMBERS
LRFD
Table 3-10 (continued)W-Shapes
Mnkip-ftASD /Ω b kip-ft φ b Mn Available Moment vs. Unbraced Length
FCyb == 50 ksi 1 1350 1335 1320 1305 1290 1275 1260 1245 1230 1215 1200
Unbraced Length (1-ft increments)
Available Moment,
M/Ωn^ b^
(2 kip-ft increments) and
φM(3 kip-ft increments)^ b^ n^
3 –114 DESIGN OF FLEXURAL MEMBERS
LRFD
Table 3-10 (continued)W-Shapes
Mnkip-ftASD /Ω b kip-ft φ b Mn Available Moment vs. Unbraced Length
FCyb == 50 ksi 1 1200 1185 1170 1155 1140 1125 1110 1095 1080 1065 1050
Unbraced Length (0.5-ft increments)
Available Moment,
M/Ωn^ b^
(2 kip-ft increments) and
φM(3 kip-ft increments)^ b^ n^
PLOTS OF AVAILABLE FLEXURAL STRENGTH VS. UNBRACED LENGTH 3 –
LRFD
Table 3-10 (continued)W-Shapes
Mkip-ftASDn /Ω b kip-ft φ b Mn Available Moment vs. Unbraced Length
FCyb == 50 ksi 1 1200 1185 1170 1155 1140 1125 1110 1095 1080 1065 1050
Unbraced Length (0.5-ft increments)
Available Moment,
M/Ωn^ b^
(2 kip-ft increments) and
φM(3 kip-ft increments)^ b^ n^
PLOTS OF AVAILABLE FLEXURAL STRENGTH VS. UNBRACED LENGTH 3 –
LRFD
Table 3-10 (continued)W-Shapes
Mkip-ftASDn /Ω b kip-ft φ b Mn Available Moment vs. Unbraced Length
FCyb == 50 ksi 1 1050 1035 1020 1005 990 975 960 945 930 915 900
Unbraced Length (0.5-ft increments)
Available Moment,
M/Ωn^ b^
(2 kip-ft increments) and
φM(3 kip-ft increments)^ b^ n^
3 –118 DESIGN OF FLEXURAL MEMBERS
LRFD
Table 3-10 (continued)W-Shapes
Mkip-ftASDn /Ω b kip-ft φ b Mn Available Moment vs. Unbraced Length
FCyb == 50 ksi 1 900 885 870 855 840 825 810 795 780 765 750
Unbraced Length (0.5-ft increments)
Available Moment,
M/Ωn^ b^
(2 kip-ft increments) and
φM(3 kip-ft increments)^ b^ n^
