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tank.xls rev 2/10/96 <br /> ROBERT H. LEE & ASSOCIATES INC. JAMES H.RAY RCE 24518 <br /> 1137 NORTH McDOWELL BLVD. <br /> PETALUMA, CA 94954-1469 <br /> (707) 765-1660 <br /> CLIENT PACIFIC BELL <br /> JOB# PACBELL standard design conditions <br /> DATE: 2/3/97 TANK BURY 4' WL AT UNDERSIDE OF SLAB <br /> HOLDDOWN CALCULATIONS FOR FLAT END UNDERGROUND TANK 2.12 <br /> MODERN WELDING ENVIRO 16 6,000 GALLON D/W UG STORAGE TANK 1.49 <br /> TANK TANK MAT DEPTH MISC. <br /> OD= 6.08 WIDTH= 10.00 W.L.= 0.67 DRYBF= 100 <br /> OL= 28.92 LENGTH= 33.00 TANK= 4.00 SUBBF= 60 <br /> WGT= 12500 DEPTH= 0.67 HD= 9.08 LGTHHD= 30 <br /> #MW= 2 SIZEHD= 1 <br /> ODMW 3.50 MWarea= 19.24 <br /> HDS= 3 <br /> VOLUME PCF TOTAL LBS <br /> BUOYANCY INCLUDING MA'\liAYS 905 62.4 56444 <br /> TANK DEAD WEIGHT 12500 <br /> CONCRETE TANK SLAB - above WL 221 150 33165 <br /> CONCRETE TANK SLAB - below WL 0 88 0 <br /> BF DRY 0 100 0 <br /> BF SUB ABOVE TNK 586 60 35147 <br /> BF DRY BELOW TNK TOP- SIDES 0 100 0 <br /> BF SUB BELOW TOP OF TANK - SIDES 115 60 6889 <br /> BF HD DRY 0 100 0 <br /> BF HD SUB 505 60 30288 <br /> HD SUB WEIGHT 60 87.6 5256 <br /> BF REDUCTION FOR MANWAYS -3845 <br /> TOTAL DOWN LOAD 119401 <br /> NET DOWN LOAD 62957 <br /> F.S. WITH DEADMEN 2.12 <br /> F.S. WITHOUT DEADMEN 1.49 <br /> REQUIRED FACTOR OF SAFETY MINIMUM 1.25 <br /> FACTOR OF SAFETY 1.25 2.12 <br /> yr MAXIMUM LOAD TO DEADMEN FOR F.S. 0 35544 <br /> AVERAGE LOAD TO EACH ANCHOR POINT 0 5924 <br /> AVERAGE CABLE LOAD DOUBLED CABLE 0 2962 <br /> CALCS FOR AREAS RE WATERTABLE <br /> R= 3.04 TANK RADIUS <br /> h= 9.41 WL FROM BOTTOM OF TANK + ABOVE - BELOW <br /> A1= 29.07 GROSS CROSS SECTION OF TANK <br /> A2= 29.07 AREA OF TANK BELOW WATER LINE <br /> 0.00 AREA OF TANK ABOVE WATER LINE <br /> A3= 0.00 DRY BF SIDES OF TANK <br /> A4= 3.97 WET BF SIDES OF TANK <br /> CAUf <br />