1321 COLBY AVE VERIZON WIRELESS ANTENNAS 2021-02-22

i Seismic Load Calculation for Components and System (Reference: IBC 2015 Section 1613&ASCE 7-10 Section 13.3) Seismic Force: O.2s Spectral Response Acceleration,Site Class B,S, = 1.281 (ASCE 7,Figure 22-1 thru 22-6) 1.0s Spectral Response Acceleration,Site Class B,Sl 0.487 (ASCE 7,Figure 22-1 thru 22-6) Site Class D (ASCE 7,Section 11.4.2) Seismic Design Category = D (ASCE 7,Tables 11.6-1&11.6-2) Site Coefficient per S,&Site Class,F. = 1.00 (ASCE 7,Table 11.4-1) Site Coefficient per Si&Site Class,F. = 1.51 (ASCE 7,Table 11.4-2) SMs=F,S, 1.281 (ASCE 7,Section 11.4.3) Spa=F St = 0.735 (ASCE 7,Section 11.4.3) SDS=2/3 SMs = 0.854 (ASCE 7,Section 11.4.4) S01=2/3 SMs = 0.490 (ASCE 7,Section 11.4.4) (Per ASCE 7-10.13.3) Component Amplification Factor,ap = 1.0 (ASCE 7,Table 13.6-1) Component Response Modification Factor,Rp = 2.5 (ASCE 7,Table 13.6-1) ( Component Importance Factor,1p = 1.0 (ASCE 7,Table 1.5-2) Component Operating Weight,Wp = Wp (lb) Height in structure at lowest point of attachment of component,zl = 116 (ft) Height In structure at highest point of attachment of component,z2 = 116 (ft) Average Roof Height of Structure,h = 112 (ft) O.4aS W Seismic design force,Fp = °65 P (1+2z/h) Rp/Ip (Eq.13.3-1) Max.seismic design force,Fppp, = 1.6SDsipWp (Eq.13.3-2) Min.seismic F design force, 0. ! gpmin 35 US PW P (Eq.13.3-3) Seismic design force at lowest point,FP2 = 0.420 Wp FpiAV6i= 0.420 Seismic design force at highest point,FPz = 0.420 Wp Min.seismic design force,Fpmin = 0.256 Wp Max.seismic design force,Fpm„ = 1.366 Wp Seismic design force,Fp(ASD) 0.300 Wp DesMPNen BY Date ENGINEERING Checked Pate Seismic Loads For Components&Systems Project Sale Sheet Na N.T.S. 250 4th Ave.South SEA DT Everett Suite 200 John. 1-0 ^� Edmonds,WA 98020 LO 04 f,2 0 g 1