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16. <br />WALTON <br />ENGINEERING, INC. <br />TANK HOLDDOWN/BUOYANCY CALCS <br />TIGER MART - 2-105 COUNTRY CLUB BLVD. <br />STOCKTON, CA <br />TH16 CALCULATION 15 FOR TWO TRU6CO EIGHT FOOT DIAMETER 12,000 GALLON <br />CALCULATION IS BASED ON THE SINGLE DIESEL TANK, WHICH IS "WORSE CASE <br />ASSUME TANK, BACKFILL, AND SLAB COMPLETELY SUBMERGED: <br />SUBMERGED WEIGHT OF CONCRETE = 51.6 PGF <br />SUBMERGED WEIGHT OF BACKFILL = 60.0 PCF <br />1. OVERBURDEN A50VE TANK - PER PEI/RP 100-94 CAN BE CALCULATED <br />U51NG THE FOLLOWING FORMULA: <br />((14/3) (51 + 52 + V 51 52 )) - ((V/2) + M) <br />D = TANK DIAMETER gl" = 5.1 FT. <br />d = BURIAL DEPTH (FROM BOTTOM OF TOP SLAB) = 3.33 FT. <br />H = (D/2) + d = 1.35 FT. <br />L = TANK LENGTH = 32 FT. <br />51 = SLAB AREA = (L+4) * (D+3) = 36 * 11.1 = 399.6 S.F. <br />52 = REFLECTED TANK AREA (D*L) = (8.1 * 32) = 2592 5.F_ <br />V = TANK DISPLACEMENT = 12,000 GALLONS = 1604 CU51C FEET <br />M = VOID IN OVERBURDEN = 2 - 42"0 MANWAY, APPROX. 4' DEEP <br />_ ?f * (3.572) 2* 4 = 38.48 CUBIC FEET * 2 = 16.91 <br />THEREFORE, OVERBURDEN A50VE TANK WOULD BE EQUAL TO: RPSIVE1 <br />(399.6 + 2592 + 39910 * 2592)) - (1604/2 + -16.97) <br />_ (2.46 * 950.63) - 519 = 1533.35 C.F_ OCT 17 1995 <br />1533.35 C.F. * 60 PCF = 92,001 L55 <br />NVIRONMENTAL HEALTH <br />2. CONCRETE 5LA5 AT GRADE = 399.6 * 0.61 * 5-1.6= 23,453 L5 PERMIT/SERVICES <br />3. TANK WEIGHT (FROM MANUFACTURER) = 11,423 L55 <br />4. TANK TOP ANCILLARY EQUIPMENT = 2,000 L56 <br />TOTAL UPLIFT FORCE (UF) a� <br />_ (1604 + -16.96) * 62.4 = 104,592 L56 1 r; <br />TOTAL RESISTANT FORCE (RF) <br />= 92,001 + 23,453 +11,423 + 2000 = 125,8-tl LSS ` OCT 16 1995 <br />RF > UF, :. OK, HOLDDOWNS NOT REQUIRED AT 45" BURY DEPTH (PER DRAWINGS) <br />SAFETY FACTOR = 125,5171/104,592 = 123 <br />843 Riske Lane, West Sacramento, CA 95691 (916) 372-1888 . FAX 373-1172 <br />Mailing Address: P.O. Box 1025, West Sacramento, CA 95691 <br />