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Seismic Base Shear for the Equivalent Lateral Force Procedure <br /> Per IBC 2018&ASCE 7-16 <br /> Structure: Rafdal House Renovation <br /> Address: 2305 127th PI SE, Everett,WA 98208 <br /> Latitude: 47.8823 Longitude: -122.2016 <br /> Structure Classification <br /> Risk Category: II per ASCE Table 1.5-1 <br /> Seismic Force-Resisting System: Light-Framed Wood Walls Sheathed with Structural Panels <br /> R: 6 1/2 per ASCE Table 12.2-1 <br /> Wo: 3 per ASCE Table 12.2-1 <br /> Cd: 4 per ASCE Table 12.2-1 <br /> hn(ft): 30.00 height above the base to the highest level of the structure <br /> Site Ground Motion <br /> Reg.Structure/5 Stories Max: Yes Sds(max)=1.0 Per ASCE 12.8.1.3 <br /> Si (g-sec): 0.48 Ss(g-sec): 1.37 <br /> Site Class: D Assumed Value per ASCE 11.4.3 <br /> ASCE 11.4.8 Exception 2 Used <br /> F, 1.82 Fa 1.20 <br /> 1.2 Min Value where SC D Assumed <br /> SM1 (g-sec): 0.88 SMs(g-sec): 1.64 per ASCE 11.4.4 <br /> SDI (g-sec): 0.59 Sps(g-sec): 1.09 per ASCE 11.4.5 <br /> SDC: D per ASCE 11.6 <br /> IF: 1.00 per ASCE Table 1.5-2 <br /> Fundamental Period per ASCE 12.8.2 <br /> Period Method: Approximate Fundamental Period <br /> Structure Type: All Other Structural Systems <br /> TL(sec): 6.00 ASCE Figures 22-14 through 22-17 <br /> Ts: 0.54 <br /> Ta(sec): 0.26 Ct*hnx per ASCE Eq. 12.8-7 <br /> Tuse(sec): 0.26 -<=TL <br /> Equivalent Lateral Force Procedure Design Base Shear per ASCE 12.8 <br /> Cs: 0.17 =Sps/(R/IE)per ASCE Eq. 12.8-2 <br /> Cs-max: 0.35 =Sol/(Ta*R/IE)for T<=TL per ASCE Eq. 12.8-3 <br /> Cs-max: 8 =SD1*TL/(Ta2*R/IE)for T>TL per ASCE Eq. 12.8-4 <br /> Cs-min: 0.05 per ASCE Eq. 12.8-5 <br /> =0.5Si/(R/IE)for Si _>0.6g per ASCE Eq. 12.8-6 <br /> Cs-use: 0.168 <br /> V: 0.168 W =Cs•use*W per ASCE Eq.12.8-1 <br /> Quantum Consulting Engineers LLC Project: Rafdal House Date: 7/14/22 Job No: 22337.01 <br /> 1511 Third Avenue,Suite 323 Designer: MKS Sheet: 1 <br /> Seattle,WA 98101 Client: Matt Rafdal Checked By: <br />