|
Seismic Load Calculation for Components and System
<br /> (Reference: 2021 IBC Section 1613&ASCE 7-16 Section 13.3)
<br /> Seismic Force:
<br /> 0.2s Spectral Response Acceleration,Site Class B,SS = 1.245 (ASCE 7,Figure 22-1 thru 22-8)
<br /> 1.0s Spectral Response Acceleration,Site Class B,Sl = 0.442 (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,Fa = 1.00 (ASCE 7,Table 11.4-1)
<br /> Site Coefficient per SI&Site Class,F = 1.86 (ASCE 7,Table 11.4-2)
<br /> SMs=FaS, = 1.247 (ASCE 7,Section 11.4.4)
<br /> SM1=F SI = 0.821 (ASCE 7,Section 11.4.4)
<br /> SDs=2/3 SMs = 0.832 (ASCE 7,Section 11.4.5)
<br /> SDI=2/3 SMI = 0.547 (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,CID = 2.0 (ASCE 7,Table 13.6-1)
<br /> Component Importance Factor,Ip = 1.0 (ASCE 7,Table 1.5-2)
<br /> Component Operating Weight,Wp = Wp (lb)
<br /> Height in structure at lowest point of attachment of component,zl = 124.1 (ft)
<br /> Height in structure at highest point of attachment of component,zZ = 124.1 (ft)
<br /> Average Roof Height of Structure,h = 124.1 (ft)
<br /> Seismic design force,Fp = 0.4a p5°SW P (1+2z/h)
<br /> Rp/IP (Eq.13.3-1)
<br /> Max.seismic design force,Fp,,, = 1.6SDSIPWp (Eq.13.3-2)
<br /> Min.seismic design force,Fpp,in = 0.3SDSIPWp (Eq.13.3-3)
<br /> Seismic design force at lowest point,Fpl = 0.399 Wp
<br /> Fp IAVGI= 0.399
<br /> Seismic design force at highest point,FP2 = 0.399 Wp
<br /> Min.seismic design force,Fpp,in = 0.249 Wp
<br /> Max.seismic design force,Fpm,n, = 1.331 Wp
<br /> Seismic design force,Fp(ASD) = 0.285 Wp
<br /> Description By Date
<br /> Checked
<br /> MRD Date 11/20/2024
<br /> O
<br /> Seismic Loads For Components&Systems
<br /> Project Scale Sheet No.
<br /> 12
<br /> N.T.S.
<br /> 2504th Ave.South SE01510A Downtown Everett-Wall
<br /> Suite 200 Job No.
<br /> Edmonds,WA 98020 24088,614
<br />
|