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AISC LRFD 1.pdf

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NUMERICAL VALUES 161ht wf vVAwnTABLE 9-50 M(MPa) for Plate Girders by Appendix Gfor 345 MPa Yield Stress Steel,Tension Field Action Included [b](Italic values indicate gross area, as percent of ( h ´ t w )required for pairs of intermediate stiffeners of 345 MPayield stress steel with V u/ V n= 1.0) [a]Aspect ratio a / h : Stiffener Spacing to Web Depth0.5 0.6 0.7 0.8 0.9 1.0 1.2 1.4 1.6 1.8 2.0 2.5 3.060 186 186 186 186 186 186 186 186 186 186 186 186 186 18470 186 186 186 186 186 186 186 186 186 183 180 175 172 15880 186 186 186 186 186 186 183 178 174 170 167 161 155 12890 186 186 186 186 185 181 174 169 162 155 150 140 133 101100 186 186 186 183 179 175 165 155 147 141 135 125 117 81.9110 186 186 183 178 173 167 155 145 137 130 124 113 106 67.7120 186 184 179 173 165 158 147 137 129 122 116 105 97.1 56.9130 186 181 175 166 159 152 140 130 122 115 110 98.3 90.4 48.5140 184 178 169 161 154 147 135 125 117 110 104 93.1 85.0 41.8150 181 174 165 157 149 143 131 121 113 106 100 88.8 80.6 36.4Over3.0[c]160 179 170 161 153 146 139 128 118 1100.21030.496.90.585.30.832.0170 176 166 158 150 143 136 1250.51151.01071.21001.494.11.628.3180 173 163 155 147 1400.41340.91231.51131.91052.297.82.391.82.525.3200 168 159 1511.01431.81372.31302.71193.21093.51013.720.5220 164 1551.71482.71403.31343.81284.11164.516.9240 1611.81533.21454.01384.61324.91265.214.2260 1583.21514.41435.11365.61305.91246.1280 1574.41495.41426.01356.4[a] For area of single-angle and single-plate stiffeners, or when V u / V n < 1.0, see Appendix A-G4-1.[b] For end-panels and all panels in hybrid and web-tapered plate girders, use Table 8-50M.[c] Same as for Table 8-50M.Note: Girders so proportioned that the computed shear is less than that given in the right-hand columndo not require intermediate stiffeners.<strong>LRFD</strong> Specification for Structural Steel Buildings, December 27, 1999AMERICAN INSTITUTE OF STEEL CONSTRUCTION

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