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\X <br />'JI!}1!Mit77Tll!!!1-111, <br />P/2 <br />Panel Span (Pl <br />Kz 0.7 0.98 height factor, Exposure B and C <br />Kzt 1 Topographic factor <br />Kd 0.85 Wind Directionality factor <br />I 1 Importance Factor <br />G 0.85 Gust Factor <br />Cnet 1.2 Net Pressure Coefficent <br />Dead 1 psf <br /> Design Design <br />Down Load Up Load <br />Amerimax Building Products <br />5208 Tennyson Parkway <br />Plano, Texas 75024 <br />Carl Putnam, P. E. <br />3441 Ivylink Place <br />Lynchburg, VA 24503 <br />(434) 384-2514 <br />carlputnam@comcast.net <br />Wind C&C (psf)(psf) <br />8 Speed (mph) Exposure qh (psf)(psf)W+W- <br />85 B 11.0 11.2 12.2 10.6 <br />90 B 12.3 12.6 13.6 12.0 <br />100 B 15.2 15.5 16.5 14.9 <br />¥ 4/0/0/0/V0,0,0,0,0, Header,vvuvvuvvuvwvvv,105 B <br />110 B <br />85 C <br />< Figure 1 90 C <br />Patio Cover Length (L)100 C <br />105 C <br />492" 19(44> <br />Spy'35(fl- P.U <br />8 9 <br />Determine Snow Loads on Existing Structur€ <br />1 Determine Roof Snow/Live Load, S. See General Note 3. <br />2 Dead Load = 1 psf <br />3 Add Dead and Live/Snow Loads, mulitply by half of Panel <br />Wall Load = (D + S) P /2 <br />4 Result is wall load in pounds per linear foot. <br />110 <br />16.8 17.1 18.1 16.5 11 <br />18.4 18.8 19.8 18.2 <br />15.4 15.7 16.7 15.1 <br />17.3 17.6 18.6 17.0 <br />21.3 21.8 22.8 21.2 <br />23.5 24.0 25.0 23.4 EOFCALROSS' <br />25.7C 25.8 26.3 27.3 <br />TABLE 1 <br />Combination Loads: Snow + Wind +Dead Loads <br />Wind <br />OCT 20 2011 <br />//R <br />r/r/ A· \\02 <br />60 Ic 211 <br />1.*3 le\/ v \1\A# j <br />Wind Load Live Loads (psf)Ground Snow Loads (psf) <br />Determine Wind Loads on Existing Structur€Speed (mph) Exposure (psf) 10 20 25 30 40 <br />1 Determine Wind Load, W+ or W-. See Table 1 Roof Live /Snow Loads + Dead 11 21 22 26.2 34.6 5 <br />2 Dead Load included in Down and Up loads 85 B 11.2 16.9 24.4 25.2 28.3 34.6 4 <br />3 Mulitply W+ or W- by half of Panel Span 90 B 12.6 17.9 25.4 26.2 29.3 35.6 4 <br />Wall Load =WP/2 100 B 15.5 20.2 277 28.4 31.6 37.9 5 <br />4 Result is wall load in pounds per linear foot.105 B 17.1 21.3 28.8 29.6 32.7 39.0 51.6 <br />5 Maximum Shear Load in X direction is 454 Ibf (110 mph Exposure C, 13' Panel Span)110 B 18.8 22.6 30.1 30.8 34.0 40.3 52.9 <br />Max load in Y direction (towards house) is 73 pif (110 mph Exp C, 10" I beam) 85 C 15.7 20.3 27.8 28.5 31.7 38.0 50.6 <br />Max load in Y direction due to force couple resisting lateral is 104 pif 90 C 17.6 21.7 29.2 30.0 33.1 39.4 52.0 <br />(110 mph Exp C, Projection = Width)100 C 21.8 24.8 32.3 33.1 36.2 42.5 55.1 <br />4hirk.WEV <br />NOV 5 2012 <br />105 C 24.0 26.5 34.0 34.7 37.9 44.2 56.8 <br />Determine Seismic Loads on Existing Structure (Excludes Roof Snow Load over 30 psf 110 C 26.3 28.2 35.7 36.5 39.6 45.9 58.5 <br />1 Vertical Loads and Horizontal Loads = maximum of 1 psf TABLE 2 <br />Combination Loads based on Equation 16-11 <br />1 Determine Combination Load, C. See Table 2 <br />3 Mulitply C by half of Panel Span <br />Wall Load =CP/2 <br />4 Result is wall load in pounds per linear foot. <br />M6-2009 <br />ICC ESR 1398 (2009 IBC) 10/11/2011 Page 58 of 60 <br />- <br />Y <br />A <br />j