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Dong Engineering Inc. <br />ADU <br />3414 S_TIMBER ST, SANTA ANA, CA 92707 <br />Job#: 250421 <br />Date: 9/17/2025 <br />PLAN: 1 <br />CODE: CBC 2022 <br />A. General: <br />Number of stories 1 <br />Building risk category II <br />Design Code CBC 2022 <br />Load standard ASCE 7-16 ASCE 7-16 <br />Design Load Combination ASD <br />B. Lateral Loads Data: <br />WIND STANDARD ASCE 7-16(Directional Procedure) <br />Wind Exposure C <br />Wind Speed 110 <br />Enclosure Enclosed Building <br />Velocity pressure qz = 0.00256KzKztKdKeV2 (26.10-1) <br />Velocity pressure exposure coefficient Kz (Table 26.10-1) <br />Directionality Factor Kd (Table 26.6-1) <br />Topographic factor defined Kzt (26.8.2) <br />Gust Effect Factor G (26.11.1) <br />Pressures for MWFRS p = qGCp – qi(GCpi)(27.3-1) <br />External pressure coefficient Cp (Fig. 27.3-1) <br />Internal pressure coefficient Gcpi (Table 26.13-1) <br />SEISMIC STANDARD ASCE 7-16(Equivalent Lateral Force Procedure) <br />Seismic Design Category (Table 11.6-1) <br />Importance factor I (Table 1.5-2) <br />Soil Site Class D-Default (Table 20-3-1) <br />Response modification coefficient R = 6.5 (Table 12.2-1) <br />System overstrength coefficient Ω = 2.5 (Table 12.2-1) <br />Approximate fundamental period parameters Ct = 0.02 x = 0.75 (Table 12.8-2) <br />Building Height (ft)11.5 <br />Building period T=Ta (sec) = 0.25 (Formula 12.8-7) <br />Base Shear Adjustment Factor = 1 <br />Seismic response coefficient Cs = 0.16 (Formula 12.8-2) <br />BUILDING INFORMATION <br />3 of 32