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Client - SCE Charge Ready Date - <br />Project -Brixen EVCS Made By - <br />Location -2100 S Fairview ST, Santa Ana, CA 92704 Orange County. Checked By - <br />Proj. No. -Preliminary - <br />9/18/2024 <br />DSS <br />- <br />80% Review1650605 <br />Description -Design calculations for footing pad of switchboard, Transformer, Distribution Panel, <br />EV Charger & Gateway Final -100% Review <br />3.6 Seismic Load : <br />Basic Design Parameters <br />Soil Site Class =D-Default (As per ATC Hazards) <br />Importance Factor = I =1 (Table 1.5-2, ASCE 7-16 For Risk Category 2) <br />Mapped spectral Response <br />Spectral Acceleration for Short period, SS =1.305 (As per ATC Hazards) <br />Spectral Accelaration for one second, S1 =0.467 (As per ATC Hazards) <br />Design spectral Response Acceleration <br />Spectral Response Coefficient SDs ==1.044 (As per ATC Hazards) <br />Spectral Response Coefficient SD1 =- <br />Seismic design category =D (ASCE 7-16, Table 11.6-1) <br />As per ASCE 7-16, the horizontal seismic design force for non-structural components is determined as follows- <br />For Switchboard Panel, Distribution Panel, Transformer and Gateway <br />ap =2.5 (From ASCE7-16, Table 13.6-1, For Panel Boards) <br />Rp =6.0 <br />Ip =1.0 (as per 13.1.3) <br />z =0.000 ft.(Height from base at which component is attached) <br />h =7.500 ft.(Equipment height from base) <br />Wp =Operating weight (Component weight) <br />=x (1+ 2x0) <br />=0.17 Sds*Ip*Wp <br />Hence , consider Fp = 0.3 Sds*Ip*Wp <br />For Charger <br />ap =2.5 (From ASCE7-16, Table 13.6-1, For Transformers) <br />Rp =6.0 <br />Ip =1.0 (as per 13.1.3) <br />z =3.500 ft (Height from base at which component is attached) <br />h =4.620 ft.(Equipment height from base) <br />Wp =Operating weight (Component weight) <br />=x (1+ 2x0.757575757575758) <br />=0.419 Sds*Ip*Wp <br />Hence , consider Fp =0.419 Sds*Ip*Wp <br />6/1 <br />6/1 <br />0.4xap*Sds*Ip*Wp <br />0.4xap*Sds*Ip*Wp