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` PITZER & ASSOCIATES, PLLC 4/6/2023 <br /> ST <br /> RUCTURAL <br /> ENGINEERS Client: Pelletier+Schaar <br /> 3 Street NE <br /> Marysville, WA 98270 Project: Eco Residence <br /> A— sz.Bosmasus= Office: (425)308-8070 P&A#: 23-109 <br /> email: tommyt42k@hotmail.com <br /> Calculated By: Tom Pitzer,PE <br /> Design Criteria Collar 3 <br /> Roof: RL:=25 psi. RD:= 15•psf. <br /> Rafter Analysis <br /> Y1 :=3•ft. M1:=4•ft. <br /> Spacing:= 12-in. w:=(RL+RD)-Spacing. w=40•ptf <br /> Y2:=5-ft. M3:=4-ft. <br /> Y3:=0-ft . X1 :=0•ft . X3:=25.5•ft. <br /> 1 2 1 2 <br /> M i [ I M 3 <br /> W1 W 3 <br /> Y , Y 2 Y 3 <br /> X 3 <br /> M1 \ /_M3 /M3.X3\ <br /> YL. 12.ft X1 +Y1 . YR:= ---1 X3+ +Y3 <br /> v 12-ft, K 12•ft , _ <br /> 12•ft ( 12•ft X3\ 11 -12-ft rM3-x3\M1 ` 2 Y1� * X2M1 +Mg [[(M3 <br /> 12.ft / +Y3] Y1 . 4,3 M3 .[Y2_ ( 12 ft 1+Y3� * <br /> YL= 3•ft Y2 Sft YR=O-ft <br /> 1y1 =6.00-ft X2=8.25ft Ii;3= 10.50-ft <br /> Material Properties of Rafters <br /> El <br /> ("#" "Species" "Grade" "Bending" "Tension" "Shear" "Comp Perp" "Comp Par" "Modulus"" <br /> 1 "Doug Fir" "#1 &Btr" 1200 800 95 625 1550 1800000 <br /> 2 "Doug Fir" "#2" 900 575 95 625 1350 1600000 <br /> z= <br /> 3 "Hem Fir" "#1 &Btr" 1100 725 75 405 1350 1500000 <br /> 4 "Hem Fir" "#2" 850 525 75 405 1300 1300000 <br /> 5 "Glulam"" "24F-V4"" 2400 1100 240 650 1650 1800000 , <br /> Define the Material Properties by inserting the Species and Grade Number: a:=4. <br /> Fb:=Z -psi F�:=Z •psi Fc:=2-psi E:=Z psi <br /> a,3 Ft:=(Za 4•psi) Fv:=Za 5-psi a,6 a,7 a,8 <br /> Fb=850-psi Ft=525-psi Fv=75-psi Feb=405-psi Fe= 1300-psi E= 1300000-psi <br /> Version 22.3 <br />