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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[77] <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)[398] <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 Si 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)[387] <br /> Site Coeffiecient,Fv 1.6 7'1613.3.3(2)[387J <br /> Substitute equations 16-37& 16-38 into 16-39& 16-40 respectively, <br /> S i]S=2•F a••S S SDs= 0.83 EQ 16-39[387] <br /> 3 <br /> S p y =3•F V•S 1 SDI= 0.43 EQ 16-40[387] <br /> Simplified analysis,Seismic base shear ASCE 7 12.14.8[1081 <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[108/ <br /> FX=(wX/W)V FX= 0.141 x wr ASCE 7 EQ 12.14-12[109] <br /> Effective seismic weight&Forces(Ibs)at Level x <br /> roof area(ft2) floor area(ft2) story height(ft) wall length(ft)Diaphragm(x=2) w X <br /> 1287 0 9.1 152 <br /> FX= 3698 weight(lbs) 19305 0 6916 26221 <br /> roof area(ft2) floor area(ft2) story height(ft) wall length(ft) <br /> Diaphragm(x=1) 72 972 10 135 wX <br /> FX= 3450 weight(Ibs) 1080 9720 6750 24466 , <br /> Version 7.0 P -2.1 <br />