Laserfiche WebLink
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 />3.5 Wind Load (W) : <br />Basic Wind Speed, V = 95 mph (As per ATC Hazards) <br />Kzt = 1.0 (Clause 26.8.2, ASCE 7-16) <br />Kd (Considering square tank) = 0.9 (Table 26.6-1, ASCE 7-16) <br />Ke = 1 (Clause 26.9, ASCE 7-16) <br />Gust factor, Gf = 0.85 <br />Exposure Category = C <br />qz =0.00256 * Kz * Kzt * Kd *Ke* V2 (Eqn 26.10-1, ASCE 7-16) <br />qz =0.00256 x 1 x 0.9 x 95^2 x1 x Kz = 20.794 * Kz <br />h = 7.500 ft <br />Kz = 0.85 (Table 26.10-1, ASCE 7-16) <br />qz (Normal Condition) =20.79 x 0.85 = 17.675 psf <br />Cf = 1.40 (Considering Square -wind normal to face with h/D=4/1.33=3.00) (for switchboard) <br />Cf = 1.40 (Considering Square -wind normal to face with h/D=5.33/2.5=2.132) (for distribution panel) <br />Cf = 1.40 (Considering Square -wind normal to face with h/D=3.0/2.25= 1.33) (for Transformer) <br />Cf =1.40 (Considering Square -wind normal to face with h/D=6/1=6) (for EV Charger) <br />Cf = 1.80 (Considering s/H = 1.12/4.67 = 0.23 & B/s = 0.93/1.12 = 0.83) (for Gateway) <br />Cf = 1.8 (For structural members) <br /> F = qz * Gf * Cf * Af (Eq. 29.4-1, ASCE 7-16) <br />Wind Load on structure <br />=G X Cf X qz <br />=0.85 X 1.8 X 17.675 <br />=0.027 ksf <br />The above calculated pressure is applied as open area load in RISA. <br />(Max Ht of the 7.5 ft. is <br />considered)