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Seismic Calculations - Coolant Tank <br />Calculating Seismic Forces <br />From 2006 International Building Code, ACE 7-05 <br />Coolant Tank <br />Shear (lateral movement) <br />Tank length <br />68 inches <br />Tank width <br />46 inches <br />Tank height <br />49 inches <br />Tank capacity <br />480 gallons <br />Weight tank contents full tank <br />4003.2 pounds <br />Weight tank <br />1350 pounds <br />from tank specs <br />Weight tank and contents <br />5353.2 <br />Number of bolts per bracket <br />3 <br />Bolt size <br />3/4" <br />Bolt strength, shear <br />4275 pounds <br />Total bolt strength, 3 bolts <br />12825 pounds <br />Max V (base shear) <br />0.19661 W <br />Max V <br />1052.49 pounds <br />ok in shear <br />Overturning shortest side <br />Overturning moment <br />2148.84 ft lbs <br />Resisting moment due to weight of tank and contents <br />8914.78 ft lbs <br />assume vertical force of earthquake = 2/3 V <br />also ok for overturning because of wire cable, and due to height of <br />steel angles (6' x 6" x 16") and proximity to wall on two sides <br />