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Seismic Load Calculation for Components and System
<br /> (Reference: 2018 IBC Section 1613&ASCE 7-16 Section 13.3)
<br /> Seismic Force:
<br /> 0.2s Spectral Response Acceleration,Site Class B,S, = 1.211 (ASCE 7,Figure 22-1 thru 22-8)
<br /> 1.0s Spectral Response Acceleration,Site Class B,St = 0.431 (ASCE 7,Figure 22-1 thru 22-8)
<br /> Site Class = D (ASCE 7,Section 11.4.3)
<br /> Seismic Design Category = D (ASCE 7,Tables 11.6-1&11.6-2)
<br /> Site Coefficient per S,&Site Class,F, = 1.50 (ASCE 7,Table 11.4-1)
<br /> Site Coefficient per Si&Site Class,F, = 1.20 (ASCE 7,Table 11.4-2)
<br /> SMs=F,S, = 1.817 (ASCE 7,Section 11.4.4)
<br /> SMt=FYS1 = 0.517 (ASCE 7,Section 11.4.4)
<br /> SDS=2/3 SMs = 1.211 (ASCE 7,Section 11.4.5)
<br /> SD,=2/3 SPAS = 0.345 (ASCE 7,Section 11.4.5)
<br /> (Per ASCE 7-16,13.3)
<br /> Component Amplification Factor,ap = 1.0 (ASCE 7,Table 13.6-1)
<br /> Component Response Modification Factor,Rp = 2.5 (ASCE 7,Table 13.6-1)
<br /> Overstrength Factor,Op = 2.0 (ASCE 7,Table 13.6-1)
<br /> Component Importance Factor,I, = 1.5 (ASCE 7,Table 1.5-2)
<br /> Component Operating Weight,Wp = Wp (lb)
<br /> Height in structure at lowest point of attachment of component,zi = 120 (ft)
<br /> Height in structure at highest point of attachment of component,z2 = 120 (ft)
<br /> Average Roof Height of Structure,h = 100 (ft)
<br /> 0.4apSDSWP
<br /> Seismic design force,Fp = (1+2z/h)
<br /> Rp/lp (Eq.13.3-1)
<br /> Max.seismic design force,Fp,,,, = 1.6SpslpWp (Eq.13.3-2)
<br /> Min.seismic design force,Fpp,ip = 0.3SmIpWp (Eq.13.3-3)
<br /> Seismic design force at lowest point,Fin = 0.988 Wp
<br /> Fp(AVG)= 0.988
<br /> Seismic design force at highest point,Fp2 = 0.988 W,
<br /> Min.seismic design force,Fmk, = 0.545 We
<br /> Max.seismic design force,F = 2.906 We
<br /> Seismic design force,Fp(ASD) = 0.706 We
<br /> Description BY DMe
<br /> CCC 2/6/2023
<br /> ENGINEER� Checked Date
<br /> Seismic Loads For Components&Systems
<br /> Project Scale Sheet No.
<br /> N.T.S.
<br /> 250 4th Ave.South WA6299 Port Gardner 10
<br /> Suite 200 lob No.
<br /> Edmonds,WA 98020 23007.126
<br /> 10
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