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De enkolb <br /> . 9 <br /> Job: Wise Residence 'Job Number: C0B29040.00 Date: 3/8/2021 <br /> Fire Damage Repair By: CET Section: <br /> Checked by: Page: 8 <br /> Gravity Framing <br /> Strut supporting hip rafter *See hip rafter design for rxn L= 4.0 ft <br /> 4x4 HF#2 CD = 1.00 C Fc = 1.15 F,*= 1,300 psi x C o x C F, = 1,495 psi <br /> P= 1,420 lb A = 12.3 in2 fc = P/A= 115 psi <br /> E min = 580,000 psi 0.822xE min <br /> d= 3.50 in FcE - (L/d)2 = 2,535 psi <br /> * 1 + FcE /F'c [1 +FcE /F'c12_ FcE /F'c <br /> F',= F , x C R = 1,251 psi C R = - l = 0.84 <br /> 2c 2c J c <br /> fc <br /> F' = 0.09 < 1.00 OK <br /> Post supporting(N)attic beams *See attic bm design for rxns L= 8.0 ft <br /> 4x4 HF#2 C p = 1.15 C Fc = 1.15 F,*= 1,300 psi x C D x C Fc = 1,719 psi <br /> P= 2,685 lb A= 12.3 in 2 f c = P/A= 218 psi <br /> E min = 580,000 psi 0.822XE min <br /> d= 3.50 in FcE - (L/d)2 = 634 psi <br /> * 1.+FcE /F'c j[1 +FcE /F12_ FcE /F'cF ,= F c x C p = 576 psi C R = 2c 2c J c = 0.33 <br /> f, <br /> F' <br /> = 0.38 < 1.00 OK <br /> 2x6 Attic Joist-Not supporting knee wall L= 12.0 ft Check A <L/ 180 = 0.80 in <br /> *Use 20 psf attic storage load <br /> Loading: w(1)= (8.1D+ 20L)(1.33) + 2= 39 plf (0'-10) <br /> P <br /> Summary: R(L) = 228 lb 1 <br /> R(R) = 163 lb w1 <br /> M(Max) = 663 lb-ft <br /> R1 R2 <br /> w(Eq) = 37 plf <br /> { CD(F,,Fb)= 1.00 CL(Fb)= 1.00 CF(Fb) = 1.30 <br /> A 1.5xV _ 1.9 in2 C;(Fv,Fb) = 1.00 C;(E) = 1.00 C,(Fb) = 1.00 <br /> REQ - F'VF', = 180 psi x C p C; = 180 psi <br /> Mx12 F'b = 850 psixCDCLCFC;C, = 1,105 psi <br /> S REQ F'b 7.2 in 3 <br /> E'= 1,600,000 psi x C; = 1,600,000 psi <br /> 5 w L 4 2x6 HF#2 <br /> I REQ =- 384 E A 13.4 in 4 <br /> (A=8.3, S=7.6, 1=20.8) <br />