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Aryam Design & Build <br />Project <br />1513 McFadden <br />Job Ref. <br />25073 <br />Section <br />GLB beam check <br />Sheet no./rev. <br /> 3 <br />Calc. by Date Chk'd by Date App'd by Date <br />42 <br />' <br />' <br />8.75''3.5'' <br /> <br />Glulam section details <br />Net finished breadth of sections;b = 8.75 in <br />Net finished depth of sections;d = 42 in <br />Number of sections in member;N = 1 <br />Overall breadth of member;bb = N  b = 8.75 in <br />Alignment of laminations;Horizontal <br />Stress class;24F-V4 DF/DF <br />Tension parallel to grain;Ft = 1100 lb/in2 <br />Compression parallel to grain;Fc = 1650 lb/in2 <br />Bending about X-X axis properties (loaded perpendicular to wide faces of laminations): <br />Positive bending;Fbx_pos = 2400 lb/in2 <br />Negative bending;Fbx_neg = 1850 lb/in2 <br />Compression perpendicular to grain;Fc_perp = 650 lb/in2 <br />Shear parallel to grain;Fv = 265 lb/in2 <br />Modulus of elasticity;E = 1800000 lb/in2 <br />Modulus of elasticity, stability calculations;Emin = 950000 lb/in2 <br />Mean shear modulus;Gdef = E / 16 = 112500 lb/in2 <br />Bending about Y-Y axis properties (loaded parallel to wide faces of laminations): <br />Bending;Fby = 1450 lb/in2 <br />Modulus of elasticity; stability calculations;Eymin = 850000 lb/in2 <br />Member details <br />Service condition;Dry <br />Length of span;Ls1 = 56 ft <br />Length of bearing;Lb = 3.5 in <br />Load duration;Ten years <br />Section properties <br />Cross sectional area of member;A = N  b  d = 367.50 in2 <br />Section modulus;Sx = N  b  d2 / 6 = 2572.50 in3 <br />Sy = d  (N  b)2 / 6 = 535.94 in3 <br />Second moment of area;Ix = N  b  d3 / 12 = 54022.50 in4 <br />Iy = d  (N  b)3 / 12 = 2344.73 in4 <br />Adjustment factors <br />Load duration factor - Table 2.3.2;CD = 1.00 <br />Temperature factor - Table 2.3.3;Ct = 1.00 <br />Flat use factor - Table 5A;Cfu = 1.04 <br />Bearing area factor - cl.3.10.4;Cb = 1.00