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Customer S&H Systems <br />Project Collectors.com <br />Job Number 10010 <br />2 STAIRS Page 10.2 <br />FALSE FALSE <br />STAIRS Platform PLT1 <br />Load Load A <br />Code Client / Type <br />2 <br />2 <br />wd Vertical Dead Load, Psf 13.9 <br />pl live point load, Lb 300 <br />wl Uniform Live Load, Psf 100 <br />Wd Stair Width, In 36 39 44 OK <br />t Tread Thickness, In 0.105 <br />Overall Width for clearance, In 44 <br />Nr Number of Risers 6 <br />RH Riser Height, In 7 7 OK <br />Nt Number of Treads 5 <br />TL Tread Length, In 11 11 OK <br />H Total Height, Ft 12 3.50 OK <br />L Total Length, Ft 4.58 <br />Θ Stair Angle = Tan-1 ( RH / TL ), Rad 0.57 <br />Θ Stair Angle = Tan-1 ( RH / TL ), Degrees 32.5 <br />H'Design Height = L*sin (Θ ), Ft 2.60 <br />Rail Extension Distance, in 12 12 or 23 in OK <br />Note: Stringer lateral unbraced length provided by the stair tread assembly <br />Stringer Design Length 5.27 FT Ix 31.9 In4 <br />Stringer Size MC MC10x8.4 Zx 7.9 In3 <br />Ω 1.67 Iy 0.326 In4 <br />Fy 36 Ksi Zy 0.548 In3 <br />Mnx 285.1 K-in <br />Vertical Load per stringer <br />P = p * Cos ( Θ ) 253 Lb <br />W stringer Load = w * Wd * Cos ( Θ )/2 88 Lb / Ft <br />M = Max [ W * S2 / 8, P*L / 4 ]333 Ft-Lb <br />Mn / Ω 14228 Ft-Lb <br />Lateral Load per stringer <br />W 0.815 * (DL ) /2 21.0 Lb / Ft <br />M 72.9 Lb / Ft <br />Mn / Ω 984 Ft-Lb <br />Unity 0.10 < 1.0 <br />V = W * S / 2 232 Lbs <br />Deflection Δ Deflection 0.00 Inches <br />S / Δ 38294 > L /360 <br />STRINGER OK <br />Steele <br />Solutions Inc. <br />SSI IBC Knock Down <br />StandardIBC <br />6737 W. Washington St. West Allis, WI 53214