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Seismic Design Parameters <br /> • <br /> Calculate seismic building loads from ASCE 7-16 Chapter's 11 &12 <br /> _Seismic Parameters <br /> Ss= 1.34 S1= 0.47 <br /> Fa= 1.00 F= 1.83 per Tables 11.4-1 &11.4-2 <br /> SMS= 1.34 SM1= 0.86 Calculated per Section 11.4.3 <br /> SDs= 0.89 SD1= 0.57 Calculated per Section 11.4.4 <br /> Seismic Design <br /> Category= D From Section 11.6 Importance factor: 1.00 <br /> F= 1.0 for 1 story building <br /> Response Mod.Factor R: <br /> Roof: 7 From Table 12.14-1,Section B-22 <br /> Left gable wall: 7 From Table 12.14-1,Section B-22 <br /> Right gable wall: 7 From Table 12.14-1,Section B-22 <br /> Front eave wall: 7 From Table 12.14-1,Section B-22 <br /> Rear eave wall: 7 From Table 12.14-1,Section B-22 <br /> Calculate building weights,W,for seismic forces <br /> Building width= 21 ft. Building length= 21 ft. Building height= 10 ft. <br /> Roof area= 576 sf Gable wall area= 142 sf Eave wall area= 105 sf <br /> Roof+ceiling DL= 5 psf Snow LL(if appliable)= 0 psf Roof W= 2,880 lbs <br /> Loft(y/n): n Loft dead load: N/A psf Full or partial loft: N/A <br /> Wall Areas Building dead loads Loft dead loads <br /> Left gable wall: 142 SF Left gable wall: 5 psf Left gable wall: 0 lbs <br /> Right gable wall: 142 SF Right gable wall: 5 psf Right gable wall: 0 lbs <br /> Front eave wall: 105 SF Front eave wall: 5 psf Front eave wall: 0 lbs <br /> Rear eave wall: 105 SF Rear eave wall: 5 psf Rear eave wall: 0 lbs <br /> Calculate Seismic Base Shear,V per Section 12.14.8 <br /> V=[(FxSDs)/R]xW (Eqn.12.14-12) <br /> Total dead loads,W(incl roof,loft) <br /> Roof: 2,880 lbs Vroo1= 368 lbs base shear for roof diaphragm <br /> Left gable wall: 709 lbs VLGW= 251 lbs base shear for wall diaphragm <br /> Right gable wall: 709 lbs VRGW= 251 lbs base shear for wall diaphragm <br /> Front eave wall: 525 lbs VFEW= 274 lbs base shear for wall diaphragm <br /> Rear eave wall: 525 lbs VREW= 274 lbs base shear for wall diaphragm <br /> Page 4 of 13 <br />