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Seismic Calculations - Waste Lou Tank <br />latitude Longitude <br />38.000012 -121.290497 <br />Seismic acceleration <br />SUS <br />0.995 <br />Checking to see if tank is adequatety secured for motion laterally <br />Shear (earthquake lateral force) <br />For all directions in schematic drawing: <br />Tank height (w/o supports) 60 in <br />Tank width 44 in <br />Tank length 44 in <br />Tank capacity 200 gal <br />Weight tank contents full 1501 lbs <br />Weight tank empty 1500 Ibs <br />Weight Waste Oil Tank and contents 3001 lbs <br />Size of bolts anchoring tank 3/4" <br />Bolt strength per bolt, shear, 3/4" bolt 12890 lbs <br />Number of bolts 4 <br />Bolt strength, four bolts 51560 lbs <br />Max V (earthquake force) 0.199 W <br />Max V (earthquake force) 597 lbs <br />Factor of safety 86 <br />Overturning -directions right and left in schematic drawing: <br />Moment arm, earthquake 34 in <br />Overturning moment at Mox V* 1692 Ib f t <br />Seismic Calculations - Waste Oil Tank, oantinued <br />Resisting moment of tank** 3037 Ib ft <br />Pullout strength, 3/4"boil 8110 Ibis <br />Combined strength, two 3/4"bolts 16220 lbs <br />Moment arm, bolts 28 in <br />Resisting moment of bolts 37847 Ib ft <br />Combined resisting moments 40883 lbft <br />Factor of safety 24 <br />Value checked 9/14/17 <br />sp gr motor oil = 0.9 <br />from schematic drawing <br />This is W <br />See note below for bolt strength reference <br />ok <br />tank supports ore 4"high -see manufacturer's drawing <br />overturning moment Doused by earthquake <br />due to weight of tank and consents, supports are 8"from sides <br />See note below for boR strength reference <br />bolts are 28N apart <br />of tank and bolts <br />ok <br />In directions up and down in schematic drawing, momentarm of bolts is longer. Therefore factor of safety Is higher. <br />In direction up in schematic drawing, tank Ls also against a wall. <br />Bolt strengths from Hilts 2014 American Product Tech Guide -Kwik Bolt TZ Stainless Steel for 2500 psi cracked concrete. <br />Bolts into concrete have also been sealed with chemical adhesive. <br />*this calculation overstates the overturning moment because the liquid containing compartment of this tank is only <br />In lower portion. <br />manufacturer's drawing. Therefore, itis conservative. <br />**for this calculation <br />assume that vertical component of earthquake = 2/3 Max V. <br />