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Azasy <br /> seals <br /> CALCULATIONS FOR FREESTANDING SIGNS <br /> • m'y'-'s.mm <br /> Structural Channel in Bending <br /> Allowable Stress Design per 2010 AISC Spec for Structural Steel Buildings <br /> Member Strength: <br /> Fy= 36 ksi <br /> Shape: C4 x 7.25 <br /> d = 4 in <br /> Sx= 2.29 in^3 <br /> Mr= 82.44 k-ft <br /> MEMBER LOADING <br /> Design wind pressure: P= 24.7 psf <br /> Sign area 1: Al= 13.3 sq ft ...tributary area 1 for each post(e.g.sign) <br /> Eccentricity of applied force: el= 3.0 ft ...distance to area 1 centroid <br /> Sign area 2: A2= 22.1 sq ft ...tributary area 2 for each post(e.g.post) <br /> Eccentricity of applied force: e2= 4.9 ft ...distance to area 2 centroid <br /> Bending Moments <br /> Mz= P*(A1*e1+A2*e2) <br /> Mz= 3.63 kip-ft Bending moment developed in member Mz< Mr OK <br /> Page 4 <br />