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Seismic Design IBC 2015 <br /> Site Clasification,Criteria Selection,&Minimum Design Lateral Force <br /> Risk Category II ASCE 7 T 6-1[77J <br /> Seismic Importance Factor IE 1.00 ASCE 7 T 1.5-2[5] <br /> Seismic Design Category D T1613.3.5(1)and(2)[3981 <br /> Site Class D ASCE 7 T 20.3-1[204] <br /> Short Period Acceleration Ss 1.25 F1613.3.1(1)[388-9] <br /> 1-Second Acceleration S1 0.4 USGS Seismic Design Maps Online <br /> Seis.Force Resisting System A.15. ASCE 7 T 12.2-1[73] <br /> Response Modification Factor R 6.5 ASCE 7 T 12.2-1[73] <br /> Design Spectral Response Acceleration Parameters <br /> Site Coeffiecient,Fa 1.0 T1613.3.3(1)[3871 <br /> Site Coeffiecient,Fv 1.6 T1613.3.3(2)[3871 <br /> Substitute equations 16-37& 16-38 into 16-39& 16-40 respectively, <br /> 2 <br /> S DSF a'S s SDs= 0.83 EQ 16-39[3871 <br /> 2 <br /> S D1 =3'F v•S 1 SDI= 0.43 EQ 16-40[387] <br /> Simplified analysis,Seismic base shear ASCE 7 12.14.8 11081 <br /> V=(F SDs/R)W Where: F=1.1 for(2)-story ASCE 7 EQ 12.14-11[108] <br /> Vertical Distribution,Forces at each level ASCE 7 12.14.8 11081 <br /> Fx=(wx/W)V Fx= 0.141 x wx ASCE 7 EQ 12.14-12[1091 <br /> Effective seismic weight&Forces(lbs)at Level x <br /> roof area(ft2) floor area(ft2) story height(ft) wall length(ft) <br /> Diaphragm(x=2) 1302 0 8.1 126 wx <br /> Fx= 3474 weight(lbs) 19530 0 5103 24633 <br /> roof area(ft) floor area(ft2) story height(ft) wall length(ft) <br /> Diaphragm(x=1) 42 1040 8.375 100 wx <br /> Fx= 2866 weight(lbs) 630 10400 4188 20321 <br /> Version 7.0 Pg 2.1 <br />