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EasySeals CALCULATIONS FOR FREESTANDING SIGNS <br /> .... OdGi9RK6fpH1 <br /> ALUMINUM DESIGN MANUAL (2005 EDITION) <br /> Specifications for Aluminum Structures (Buildings) <br /> Design Check of 1.6"x3"x0.356"/0.356" 6063-T6 Aluminum C-Channel b <br /> Alloy: 6063 Temper: T6 Welded: Y <br /> tb <br /> SECTION PROPERTIES s <br /> b 1.600" Flange width <br /> tb 0.356" Flange thickness <br /> h 3.000" Web height th <br /> th 0.356" Web thickness <br /> Ix 2.36 in^4 Moment of Inertia about axis parallel to flange <br /> ly 0.47 in^4 Moment of Inertia about axis parallel to web <br /> Sc 1.57 in^3 Section modulus, compression side (about X-axis) <br /> rx 1.10 in Radius of gyration about centroidal axis parallel to flange <br /> ry 0.49 in Radius of gyration about centroidal axis parallel to web <br /> 1 0.10 in"4 Torsion constant <br /> A 1.95 in^2 Cross sectional area of member <br /> MATERIAL PROPERTIES <br /> Ftu 17 ksi Tensile ultimate strength <br /> Fty 8 ksi Tensile yield strength <br /> Fcy 8 ksi Compressive yield strength <br /> Fsu 11 ksi Shear ultimate strength <br /> E 10,100 ksi Compressive Modulus of Elasticity <br /> ALLOWABLE STRESSES <br /> Fb= 4.45 ksi Allowable bending stress <br /> Fac= 3.11 ksi Allowable axial stress,compression f <br /> MEMBER LOADING <br /> Design wind pressure: P= 24.7 psf End Supports: Cantiliever <br /> Sign area: A1= 2.6 sq ft ...trib area for each member(e.g.sign+post) <br /> Eccentricity of applied force: e1= 3.2 ft ...dist to area centroid(weighted avg hl,h2) <br /> Bending Moments <br /> Mz 0.21 kip-ft Bending momemt developed in member Ma= 0.58 kip ft <br /> fb= 1.57 ksi Bending stress developed in member <br /> Fb= 4.45 ksi Allowable bending stress of member fb< Fb OK <br /> 1200 N Federal Hwy,#200 Ofc:(954)333-8965— Fax:(954)719-3707 <br /> Boca Raton, FL 33432 www.nu-wind.com Page of <br />