AISC LRFD 1.pdf

NUMERICAL VALUES 145TABLE 3-50Design Stress for Compression Members of50 ksi Specified Yield Stress Steel, c = 0.85 [a]Klr c F crksiKlr c F crksiKlr c F crksiKlr c F crksi1 42.5 41 37.6 81 26.3 121 14.62 42.5 42 37.4 82 26.0 122 14.33 42.5 43 37.1 83 25.7 123 14.14 42.5 44 36.9 84 25.4 124 13.95 42.4 45 36.7 85 25.1 125 13.76 42.4 46 36.4 86 24.8 126 13.47 42.4 47 36.2 87 24.4 127 13.28 42.3 48 35.9 88 24.1 128 13.09 42.3 49 35.7 89 23.8 129 12.810 42.2 50 35.4 90 23.5 130 12.611 42.1 51 35.1 91 23.2 131 12.412 42.1 52 34.9 92 22.9 132 12.313 42.0 53 34.6 93 22.6 133 12.114 41.9 54 34.3 94 22.3 134 11.915 41.8 55 34.1 95 22.0 135 11.716 41.7 56 33.8 96 21.7 136 11.517 41.6 57 33.5 97 21.4 137 11.418 41.5 58 33.2 98 21.1 138 11.219 41.4 59 33.0 99 20.8 139 11.020 41.3 60 32.7 100 20.5 140 10.921 41.2 61 32.4 101 20.2 141 10.722 41.0 62 32.1 102 19.9 142 10.623 40.9 63 31.8 103 19.6 143 10.424 40.8 64 31.5 104 19.3 144 10.325 40.6 65 31.2 105 19.0 145 10.226 40.5 66 30.9 106 18.7 146 10.027 40.3 67 30.6 107 18.4 147 9.8728 40.1 68 30.3 108 18.1 148 9.7429 40.0 69 30.0 109 17.8 149 9.6130 39.8 70 29.7 110 17.6 150 9.4831 39.6 71 29.4 111 17.3 151 9.3632 39.4 72 29.1 112 17.0 152 9.2333 39.3 73 28.8 113 16.7 153 9.1134 39.1 74 28.5 114 16.4 154 9.0035 38.9 75 28.2 115 16.1 155 8.8836 38.7 76 27.9 116 15.9 156 8.7737 38.5 77 27.6 117 15.6 157 8.6638 38.2 78 27.2 118 15.3 158 8.5539 38.0 79 26.9 119 15.1 159 8.4440 37.8 80 26.6 120 14.8 160 8.33[a] When element width-to-thickness ratio exceeds r,see Appendix B5.3.Klr161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200 c F crksi8.238.138.037.937.847.747.657.567.477.387.307.217.137.056.976.896.816.736.666.596.516.446.376.306.236.176.106.045.975.915.855.795.735.675.615.555.505.445.395.33LRFD Specification for Structural Steel Buildings, December 27, 1999AMERICAN INSTITUTE OF STEEL CONSTRUCTION