Example 7.1A Beginners Guide to the Steel Construction Manuallast modified: 10 Aug 2007Example 7.1by: TBQLoadPart of Ps,eqDead,D1KLx15ftLive, L1.5KLy6ftSnow, S2Solution:Solution Summary:Ps,eqLRFDASDPartSectionSteel(kips)(kips)aW10X19A992117.44127.17bHSS10X4X1/2A500 Gr B, Rect HSS301.28326.25cHSS7.500X0.500A500 Gr B, Rnd HSS215.43233.28ASCE 7 Load Combinations:LoadPart of Ps,eqDead,D122.2%Ps,eqLive, L1.533.3%Ps,eqSnow, S244.4%Ps,eqThe controlling load case is LRFD LC-3cThe controlling load case is ASD LC-4 and LC-6 equally controlComposite load factor for LRFD:Pu =1.31Ps,eqComposite load factor for ASD:Ps =0.806Ps,eqpart (a)W10X19Fy50ksiA992Orient column so that the strong axis is associated with the largest KLCheck Local Buckling Criteria: SCM Table B4.1CaseCoeff.RatioActualLimitAct/Limit30.56bf/2tf5.0913.490.377Not Slender101.49h/tw35.435.880.987Not SlenderUse SCM Section E3Compute Slenderness ValuesDirectionrKL/r(in)Stong4.1443.48Weak0.87482.38