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Rooftop Structural Design Report February 17, 2023 <br /> Project Number:DSH-062R1/2204047 Page 17 <br /> SEISMIC LOAD CALCULATIONS ON APPURTENANCES: <br /> Code: international Building Code 2018 <br /> Occupancy: <br /> Occupancy Group = Business •� <br /> Risk Category & Importance Factors: <br /> Risk Category ; Category II : 411 bldgs and other structures etcept those listed in Categories I, III, & IV <br /> Seismic Loads: IBC 2018 Strength Level Forces <br /> Risk Category fi <br /> Importance Factor(I); 1,00 <br /> Srte Class: D- code de 1 Class D•co&d€f auk <br /> Ssi02sec = 11980 <br /> Si 0 se_ = 4260 g" <br /> Fa = Sms = 1 438 = = 0 9E8 Design Category= 0 <br /> F. _ 4 Sm1 = 0 798 0 532 Design Category= D <br /> MECH AND ELEC COMPONENTS SEISMIC COEFFICIENTS Seismic Design CategoryD&ip=1 0,therefore <br /> see ASCE7 Section 13 1 4 for exceptions <br /> Mech or Electrical Component Other mechanical or electrical components. <br /> Importance Factor(Ip) ip= 1.0 all other components 'V <br /> Component Amplification Factor(a,) = 1 h" 63 5 feet <br /> Comp Response Modification Factor(R ) = 1 5 z=' 63 5 feet z/h = 1,00 <br /> O„rer-Strength Factor(0o) = 2 <br /> Fp= 01a,SdslpWp(1+2zrh)1Rp= 0 767 Wp <br /> not greater than Fp= 1 6SdslpWp= 1 533 Wp <br /> but not less than Fp= 0 3SdslpWp= 0 288 V.'p use Fp = 0 767 Wp <br /> Weight Seismic Load <br /> Description lb Seismic Factor (Ibs) <br /> MX08FR0665-21 64.5 0.767 49.5 <br /> TA08025-B604 63.9 0.767 49.0 <br /> TA08025-B605 75.0 0.767 57.5 <br /> RDIDC-9181-PF-48 21.8 0.767 16.7 <br />