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Post Design <br /> Determine the allowable bending and compression stresses for the eave wall posts per NDS <br /> Nominal Design Values(allowable) Adjustment factors per Table 4.3.1 <br /> Fb: 575 psi-bending CD for snow 1.15 LDF for snow <br /> Fc: 575 psi-compression CD for wind/seismic 1.6 LDF for wind/seismic <br /> CD for post 1.0 Size factor for posts<12"in depth <br /> Final Design Values Cp= 0.89 Column stability factor per Section 3.7 <br /> Fb_design• 920 psi final allowable bending stress <br /> Fc_design: 591 psi final allowable compression stress <br /> Combined Bending And Compressive(CBAC)Post Loads by Load Case <br /> Determine the maximum Combined Bending And Compressive stresses in the eave wall post per NDS 3.9.2 <br /> using applicable load cases from ASCE 7-16 Section 2.4. <br /> Load Case 1 -Dead Load+Snow <br /> Fb_design: 920 psi Final allowable bending stress <br /> Fc_design: 591 psi Final allowable compression stress <br /> Pdead= 630 lbs Dead load <br /> Psnow= 3150 lbs Snow load <br /> A= 36 sq-in Cross-sectional area of post FcE= 1,586 psi <br /> fb= 0 psi=0 fb= 105 psi=(Psnow+Pdead)/A <br /> CBAC1= 0.03 =((fc/Fc_design)2)+(01)/(Fb_design(1-(fc/FcE)))))) <br /> Load Case 2-Dead Load+0.6Wind <br /> Fb_design: 920 psi Final allowable bending stress <br /> Fc_design: 591 psi Final allowable compression stress <br /> Pdead= 630 lbs Dead load <br /> Psnow= 3150 lbs Snow load <br /> A= 36 sq-in Cross-sectional area of post FcE= 1,586 psi <br /> fb= 183 psi=0.6 x fb_post fc= 18 psi=Pdead/A <br /> CBAC2= 0.20 =((fc/Fc_design)2)+((fb/(Fb_design(1-((c/FcE)))))) <br /> Load Case 3-Dead Load+0.75(0.6Wind)+0.75Snow <br /> Fb_design: 920 psi Final allowable bending stress <br /> Fc_design: 591 psi Final allowable compression stress <br /> Pdead= 630 lbs Dead load <br /> Psnow= 3150 lbs Snow load <br /> A= 36 sq-in Cross-sectional area of post FcE= 1,586 psi <br /> fb= 137 psi=.75 x(0.6 x fb_post) fc= 83 psi=((.75 x Psnow)+Pdead)/A <br /> CBAC3= 0.18 =((fc/Fc_design)2)+((fb/(Fb_design(1-(fc/FcE)))))) <br /> Max.CBAC= 20% » Maximum post usage<100%OK <br /> Page 7 of 13 <br />