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I" • <br /> MORRISON HERSHFIELD <br /> Project#: 7170339 Date: 10/09/2017 <br /> Site: SEA Casino Road By: YW <br /> Wind Load on Proposed Panel Antenna (HEX458CW0000G) <br /> A.Solid Freestanding Walls&Solid Signs(&open signs with less than 30% open) <br /> s/h= 0.25 Case A&B <br /> Dist to sign top(h) 30.0 ft B/s= 0.17 C1 = 1.86 <br /> Height (s) 7.6 ft Lr/s= 0.08 F=qz G Cf As = 24.6 As <br /> Width (B) 1.3 ft Kz = 0.982 As= 9.9 sf <br /> Wall Return(Lr)= 0.6 ft qz= 15.5 psf F = 244 lbs <br /> Directionality (Kd) 0.85 ASCE7 Load Combination LI;e, <br /> Wind Load on Existing Panel Antenna (BXA-80063/8CF) <br /> A.Solid Freestanding Walls&Solid Signs(&open signs with less than 30% open) <br /> s/h= 0.26 CaseA&B <br /> Dist to sign top(h) 30.0 ft B/s = 0.12 C1 = 1.89 <br /> Height (s) 7.9 ft Lr/s= 0.05 F=qz G Cf As = 24.9 As <br /> Width (B) 0.9 ft Kz = 0.982 As=1 7.4 sf <br /> Wall Return(Lr)= 0.4 ft qz= 15.5 psf F = 184 lbs <br /> Directionality (Kd) 0.85 -;CE7 Load Combinations Use.w <br /> Wind Load on Mounting Pipe (2.375") <br /> B.Open Signs&Lattice Frameworks(openings 30%or more of gross area) <br /> Height to centroid of Af(z)' 26.0 ft Kz = 0.953 <br /> Base pressure(qz)= 15.1 psf <br /> Width(zero if round)! 0.0 ft <br /> Diameter(zero if rec' 0.2 ft D(qz)^.5= 0.77 F=qZ G Cf Af = 19.2 Af <br /> Percent of open area I = 0.5 Solid Area:Af ` 0.2 sf <br /> to gross area 50.0% Cf = 1.5 F = 4 lbs <br /> Directionality (Kd) 0.851 ASCE7 Load Combinations Used <br /> Wind Load on Frame Angle (L2.5x2.5) <br /> B.Open Signs&Lattice Frameworks(openings 30%or more of gross area) <br /> Height to centroid of Af(z)' 26.0 ft Kz = 0.953 <br /> Base pressure(qz)= 15.1 psf <br /> Width(zero if round)" 0.2 ft <br /> Diameter(zero if reel 0.0 ft F=q2 G Cr Af = 20.5 Af <br /> Percent of open area I = 0.5 Solid Area:At = 0.2 sf <br /> to gross area 50.0% Cr = 1.6 F = 4 lbs <br /> Directionality (Kd) 0.85[[ASCE7 Load Combinations Used <br /> 3 <br />