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Iftput Cells <br />Stair Stringer Calc (Solid( Fntry Stair <br />Drop: <br />g ft, <br />Date i/tbNn21 lobil �6.17 <br />Approx. Riser: <br />7.5 inches <br />Actual Riser: <br />7.125 inches <br />Tread Length: <br />11 inches <br />Run: <br />176 inches 14 FT 81NCH <br />Limit <br />240 <br />Riser d: <br />16 <br />�Deflection <br />Hrz span: <br />14.67 <br />USE: 4x12 <br />PT HF No.2 <br />Slope: 108 176 @ 20 , o.c. <br />Angie; <br />31.535 <br />Degrees <br />5 Rxn: 650 lbs. <br />T Rxn: 74 lbs. <br />S <br />25 <br />21.31 <br />13,08 <br />35.51 <br />Span: <br />17.208 <br />ft. <br />Trib Width: <br />20.000 <br />inches <br />K <br />1.000 <br />ID (un6raced Length) <br />0,500 <br />ft. <br />DL <br />L <br />Flat Loading: <br />8 <br />40 <br />Bending: <br />6.82 <br />34.09 <br />Compression: <br />4.18 <br />20.92 <br />Trib Bend: <br />Trih Cmmn. <br />11.36 <br />907 <br />56.82 <br />ne o <br />Member: <br />2x12 <br />2x14 <br />4x12 <br />4x14 <br />4x16 <br />Depth: <br />11.250 <br />13.250 <br />11.250 <br />1325 <br />15.250 <br />Deflective: <br />11.25 <br />1325 <br />11.25 <br />13.25 <br />1525 <br />Area: <br />16 875 <br />19.875 <br />39,375 <br />46.38 <br />53.375 <br />5(in^3): <br />31 641 <br />43.891 <br />73.828 <br />102.41 <br />135 661 <br />l <br />178.0 <br />290.8 <br />4153 <br />679 <br />1034 <br />le <br />R- R <br />11 0 <br />11,0 <br />11.0 <br />11.0 <br />110 <br />7.420 <br />s.0g9 <br />3.194 <br />3.456 <br />3.707 <br />r'.. piv <br />nt!b <br />F b: <br />850 <br />F'c: <br />1300 <br />PT HF N0.2 <br />E min <br />470000 <br />E <br />13001)00 <br />W <br />81 <br />PLF <br />Moment: <br />2984 <br />Ib*ft <br />C-D <br />C-M <br />C t <br />C L <br />1.15 <br />1.0 <br />I <br />Bending <br />F(x12) <br />C„F N141 <br />C, F(x121 <br />C._F (x1 <br />0.9 <br />0.9 <br />0.9 <br />0.9 <br />Compression <br />F (x12) <br />C_F N14) <br />C_F (x12) <br />C_F (x1 <br />0.90 <br />090 <br />090 <br />0,90 <br />C_fu <br />Ci <br />Cr <br />C P <br />10 <br />0.8 <br />1.00 <br />1.0 <br />fc <br />121 <br />120 <br />120 <br />120 <br />120 <br />fbi <br />1132 <br />816 <br />465 <br />350 <br />264 <br />704 <br />704 <br />704 <br />704 <br />Inn <br />F'c <br />1076 <br />1676 <br />1076 <br />1076 <br />3076 <br />F'b2 <br />0 <br />0 <br />0 <br />0 <br />0 <br />F'min <br />3,76E+05 <br />3 76E+05 <br />3.76E+05 <br />3 8E+05 <br />3 76E+05 <br />RE1 <br />1.09E+06 <br />1.51E+06 <br />-1.09E+06 <br />1.5E+06 <br />2.00E+06 <br />FhE <br />9174 <br />6940 <br />44502 <br />3 8E+04 <br />32830 <br />Checks: <br />(3.9-3) <br />1.621 <br />1.172 <br />0.702 <br />5.1E-01 <br />0.387 <br />t3,9-4) <br />1.92E-02 <br />1.38E-02 <br />1-19E-04 <br />8.6E-05 <br />6.46E-05 <br />Bending: <br />1.61E+00 <br />1.16E+00 <br />6.89E-01 <br />S OE-01 <br />3,75E-01 <br />Compression: <br />1.11E-01 <br />1.11E-OS <br />1.11E-OS <br />1,1E-Ol <br />S.SiE•OS <br />Cade: <br />fMin,Max.Riser <br />7,75Tread <br />No.2 <br />(3.9-3) <br />(3.9-4) <br />Bend: <br />Camp: <br />D/C <br />L/ <br />2 <br />Fails <br />Checks <br />Fails <br />Fails <br />162% <br />300 <br />=Fails2xl4 <br />14 <br />Fails <br />Checks <br />Fails <br />Fails__<:: <br />Checks <br />Checks <br />Checks <br />-2 <br />Checks <br />70% <br />701 <br />4 <br />Checks <br />Checks <br />Checks <br />Checks <br />51% <br />1145 <br />6 <br />Checks <br />Checks <br />Checks <br />Checks <br />39% <br />1746 <br />3.9.2 Bending and Axial Compression <br />Members subjected to a combination of bending <br />about one or both principal axes and axial compression <br />(see Figure 3H) shall be so proportioned that: <br />[ ll� ' 12., fist <br />f�) <br />+ 12 < 1-0 (3.9-3) <br />Fb2 fc/F.2�-ifbi/Fbt:� <br />and <br />z <br />f +l fbi ) : 1.0 (3.9-4) <br />F E2 l FbE J <br />where: <br />and <br />and <br />0.822 E for either uniaxial <br />f` < F°El = edgewise bending or <br />biaxial bending <br />f < F. E2 0,822 E"11 r for uniaxial flatwise <br />(C., / d2)` bending or biaxial <br />bending <br />1.20 Fn:,n <br />fbi < FeE = - (� )� for biaxial bending <br />fbi -actual edgewise bending stress (bending load <br />applied to narrow face of member) , psi <br />fb2 -actual flatwlse bending stress (bending load <br />applied to wide face of member) , psl <br />di - wide face dimension (see Figure 3H), In. <br />d2 - narrow face dimension (see Figure 3H), in. <br />