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`8-H-20 ROBERT-JAMES&ASSOCIATES,Inc. Sht 2 of 6 <br /> Moment: (ftlbs.) MtDL:= ShrDL•C 6.67) MtDL= 105.661 <br /> 2 <br /> Snow Load: r ( l <br /> Shear: (lbs.) ShrSL= C6.67.I 12JSL <br /> J ShrSL=0 <br /> Moment: (ft.lbs.) MtSL:= ShrSL•I 667) MtSL=0 <br /> 2 <br /> Combined Moment: <br /> Summation: (ftlbs.) MtEL90:_ (MtDL+MtWL)2+ (MtSL+ MtWL)2 MtEL90=344.797 <br /> Combined Shear: <br /> Summation: (ftlbs.) ShrEL90:= ShrWL+ ShrDL+ ShrSL ShrEL90=87.21 <br /> Design of ClearanceArm: <br /> Section Modulus of Tube: (irL3) HSS 3"x 3"x 1/8"wall - TubeSM:= 1.19 <br /> MtEL90.12 <br /> Bending Stress: (psi.) fb:= TubeSM fb=3476.945 <br /> Area of Tube: (in?) HSS 3"x 3"x 1/8"wall - TubeArea= 1.30 <br /> Bending Stress: (psi.) fl ShrEL90:= f,=67.085 <br /> TubeArea <br /> Unity Check: UCC1mcArm:= fb + f, UCC1rncArm=0.118 < 1.00 OK <br /> ClearanceArm 30360 18400 <br /> Desijzn of Insert Pipe at EL.9.0': <br /> Round Mechanical Tube: 5-5/8"Dia.x 0.312"wall - <br /> Dia: (in.) Dia:= 5.625 <br /> Radius: (in. r:= Dia r=2.813 <br /> 2 <br /> Area: (in.2) A:= 5.21 <br /> Section Modulus: (in.3) SM:= 8.82 <br /> Torsional Stiffness Constant: (in.4) J:= 36.88 <br /> Bending Stress: (psi.) fb- MtEL90.12fb=469.112 <br /> SM <br /> Shear Stress: (psi.) fv:= ShrEL90fv= 16.739 <br /> A <br /> Torsional Stress: (psi.) ft:= (MtWL•12)•r ft= 169.468 <br /> J <br /> Combined Shear Stress: (psi.) fvcomb (fv+ ft)2+ ft2 fvcomb=251.779 <br />