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Seismic Design IBC 2003 <br />Site Clasification. Criteria Selection <br />& Minimum Design <br />Lateral Force 1615 1616 1617 <br />Seismic Use Group <br />1 <br />1616.2 [326] <br />Seismic Importance Factor <br />IE <br />1.00 <br />T1604.5(2721 <br />Seismic Design Category <br />D <br />1616.3 [326] <br />Site Class <br />D <br />T1615.1.1 [324 <br />Short Period Acceleration <br />Ss <br />1.25 <br />F1615(1) (304] <br />1-Second Acceleration <br />S, <br />0.4 <br />F1615(2) [3041 <br />Seis. Force Resisting System <br />1. K. <br />T1617.6.2 [334] <br />Response Modification Factor <br />R <br />6.5 <br />T1617.6.2 [334] <br />USGS Probabilistic Hazard Lookup Link http://eqint.er.usgs.gov/eg/html/Zipcode.htmi <br />Design Spectral Response Acceleration Parameters 1615.1.213 f3227 <br />Site Coeffiecient, Fa 1.0 T1615.1.2(1) (323] <br />Site Coeffiecient, Fv 1.6 T1615.1.2(2) [323] <br />Substitute equations 16-38 & 16-39 into 16-40 & 16-41 respectively, <br />S DS = 3 . F a • S S Sos = 0.83 EQ 16-38140 [322] <br />2 <br />S D 1= 3 F v- S 1 Sp1 = 0.43 EQ 16-39141 [322] <br />Simplified analysis. Seismic base shear 1617.5 t3311 <br />1.2 S IDS <br />V= W EQ 16-56 [331] <br />R <br />Vertical Distribution. Forces at each level 1617.5.2 1332 <br />1.2-S 0.154 xw, <br />F _ IDSw Fx = x EQ 16-57 (332] <br />x R x <br />EfFeCtivP Ca_hmmir wainhf A Fnrrnc Ilk-% -4 1 e ..,i ., <br />-- ----- - ----....- _ <br />Dlaphragm (x = 2) <br />Fx = 4105 <br />.. - .-....... <br />— y �Wvc <br />roof area (ft?) <br />n <br />floor area (ft?) <br />story height (ft) <br />-- <br />wall length (ft) <br />.. <br />1419 <br />0 <br />8 <br />135 <br />weight (Ibs) <br />21285 <br />0 <br />5400 <br />26685 <br />Diaphragm (x = 1) <br />Fx = 3938 <br />roof area (ft?) <br />floor area (ft?) <br />story height (ft) <br />wall length (ft) <br />w x <br />173 <br />1220 <br />8 <br />135 <br />weight (Ibs) <br />2595 <br />12200 <br />5400 <br />25596 <br />Version 7.0 Pg 2.1 <br />