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C� <br /> Elrod Engineering LLC <br /> Project 100Z3582 Pet Supplies Plus File 100x3582 <br /> Subject 30"Channel letters Date : 9/4/2019 <br /> Location : Zephyrhills,FL Eng TBG <br /> Internal Pressure Coefficient,GCoi.Table 26.11-1 <br /> Enclosure Classification <br /> • • = • 0.18 -0.18 60 5,000,000 1.00 0.18 -0.18 <br /> External Pressure Coefficients.GCo.Figure 30.4-2(roofl and Figure 30.4-1(walls) <br /> IWIMME1110= <br /> 1.00 0.00 0.30 -1.00 -1.70 <br /> © 1.00 0.00 0.30 -1.80 -1.70 <br /> © 1.00 0.00 0.30 -2.80 -2.80 <br /> 4.00 All 0.90 -0.99 <br /> © 4.00 All 0.90 -1.26 <br /> Values of GCp for walls(zone 4&5)were reduced by 1016 <br /> Design Wind Pressure.o.Eauation 30.4-1. <br /> 40.32 0.30 -1.00 0.18 -0.18 4.84 19.35 -47.57 -33.06 <br /> ©, 40.32 0.30 -1.80 0.18 -0.18 4.84 19.35 -79.82 -65.31 <br /> 40.32 0.30 -2.80 0.18 -0.18 4.84 19.35 -120.14 -105.63 0 <br /> 40.32 0.90„ -0.99 0.18 - -0.18 29.03 43.54 -47.17 -32.66 �1/ •3�. �C <br /> © 40.32 0.90 -1.26 0.18 -0.18 29.03 43.54 -58.05 -43.54 <br /> Positive and negative values of external and internal pressures are combined to determine four possible pressures: <br /> pl+uses GCp+and GCpi+ pl-uses GCp-and GCpi+ <br /> p2+uses GCp+and GCpi- p2-uses GCp-and GCpi- <br /> Roof Overhang Pressure.a.Equation 30.10-1. <br /> Wind pressures acting on the roof overhang(soffit pressures not included). <br /> © 40.32 -1.70 0.18 -0.18 -75.79 -61.28 <br /> © 40.32 -2.80 0.18 -0.18 -120.14 -105.63 <br />