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r CQV)�EdsySeals CALCULATIONS FOR WALL-MOUNTED SIGNS <br /> earysm mm <br /> r ALUMINUM DESIGN MANUAL <br /> Specifications for Aluminum Structures (Buildings) <br /> Design Check of 2"x2"x0.125"/0.125" 6063-T6 Aluminum Tub b Alloy: 6063 Temper: T6 Welded: Y <br /> SECTION PROPERTIES th <br /> b 2.000" Flange width <br /> tb 0.125" Flange thickness _ — <br /> h 2.000" Web height <br /> th 0.125" Web thickness <br /> Ix 0.55 in^4 Moment of Inertia about axis arallel to flang <br /> ly 0.55 in^4 Moment of Inertia about axis arallel to web tb <br /> Sc 0.55 in^3 Section modulus, compressio I side (about X-axis) <br /> rx 0.77 in Radius of gyration about cent oidal axis parallel to flange <br /> ry 0.77 in Radius of gyration about cent oidal axis parallel to web <br /> 1 0.82 in^4 Torsion constant <br /> A 0.94 in"2 Cross sectional area of memb r <br /> MEMBER SPANS <br /> L 10.0 ft Unsupported member length (between supports) <br /> Lb 8.0 ft Unbraced length for bending between bracing against side-sway) <br /> k 1.0 Effective length factor <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= 4.84 ksi Allowable bending stress <br /> Fac= 2.09 ksi Allowable axial stress,compression <br /> MEMBER LOADING <br /> Design wind pressure: P= 35.2 ps End Supports: Cantiliever <br /> Sign area: A1= 6.0 sq ft ...trib area for each post(e.g.sign+post) <br /> Eccentricity of applied force: el= 1.0 ft ...dist to area centroid(weighted avg hl,h2) <br /> Bending Moments <br /> Mz 0.21 kip-ft Bending moment developed in member Ma= 0.22 kip ft <br /> fb= 4.59 ksi Bending stress developed in member <br /> Fb= 4.84 ksi Allowable bending stress of member fb< Fb OK <br /> Page 4 <br />