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Pitzer&Associates, PLLC 23-109 1SL 4GL ESDLR IBC ver18-1.xmcd 4/12/2023 <br /> 6.0 Seismic Analysis - Equivalent Lateral Force Procedure <br /> Building Properties: <br /> 2 HRJ:= 1.0•ft <br /> Ar:=3847•ft Area of the Roof in Square Feet Height of Rim Joist and/or pony wall <br /> Hi:=8.0•ft Height of First Story Wallsawrage <br /> Ab:=3023.ft2 Ground Floor area in Square Feet <br /> Llb 144.ft Length of Walt on the First Floor <br /> Calculate Building Masses: <br /> Mass of High Roof and Tributary Walls Mr:=Ar•RD+Hi.0.5•L1b•WDL Mr=63465-lb <br /> Mass of Entire Building Mt:= Mr Mt=63465-Ib <br /> Lateral Forces Parameters: <br /> k:= 1.0 <br /> R,:=6.5 <br /> sips= 1.130 <br /> le:= 1.00 = ', <br /> TL:=6.0 . Cs shall not be less than <br /> Ta=0.152 . ..: <br /> Csmin:=0.044-Sps.le <br /> Csmin=0.050 <br /> Seismic Base Shear,V <br /> Cs need not be more than <br /> Sips.le <br /> R c= 0.1739 <br /> Csmaxl SD1 For Ta LE TL <br /> :_ <br /> (R1 Csmaxl =0.6 <br /> Vg:=C-Mt Ta•\le) <br /> Vg= 11035-lb SD-1•TL <br /> Csmax2:= R For Ta QTTL - _. , . <br /> Tel Csmax2= 3.8 Ie/ <br /> Q► TOTAL BUILDING MASS <br /> (BH1 Mr) <br /> k <br /> TBM:_ ft lb <br /> TBM= 571185 <br /> Vertical Distribution of Seismic Shear Forces: <br /> Check fdlowing calculations;ifECi is equal to 1;then OK <br /> /BH 1 Mr\k <br /> ft IbJ <br /> Roof Diaphragm Cvr TBM Cvr= 1.000 Fr Cvr VB Fr= 1103 5 Ib <br /> Check Shear Distribution Ct:=Cvr Ct= 1.000 <br /> 1 SL Version 18.1 Page 6 <br />