AISC LRFD 1.pdf

NUMERICAL VALUES 157hf vVAwnTABLE 9-36 (cont’d)(ksi) for Plate Girders by Appendix Gfor 36 ksi Yield Stress Steel,Tension Field Action Included [b](Italic values indicate gross area,as percent of (h t w) required for pairs ofintermediate stiffeners of 36 ksi yield stresssteel with V u/ V n= 1.0) [a]Aspect ratio a/h: Stiffener Spacing to Web Deptht w 0.5 0.6 0.7 0.8 0.9 1.0 1.2 1.4 1.6 1.8 2.0 2.5 3.0300 16.6 15.8 15.03.9 5.2 5.9320 16.4 15.64.9 6.0[a] For area of single-angle and single-plate stiffeners, or when V u / V n < 1.0, see Equation A-G4-1.[b] For end-panels and all panels in hybrid and web-tapered plate girders, use Table 9-36.[c] Same as for Table 9-36.Note: Girders so proportioned that the computed shear is less than that given in the right-hand columndo not require intermediate stiffeners.Over3.0[c]LRFD Specification for Structural Steel Buildings, December 27, 1999AMERICAN INSTITUTE OF STEEL CONSTRUCTION