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OANCHORING TAM Concrete B <br /> Tanks must be anchored into ns where water could Anchor points Ist be located less than 4.5 feet (1.4 <br /> enter the hole. meters) from the tank centerline on 8 foot(2.4 meters) <br /> Hold-Down Straps diameter tanks,3.5 feet(1.1 meters)on 6 foot(1.8 meters) <br /> diameter tanks, 2.5 feet(0.8 meters)on 4 foot(1.2 me- <br /> Xerxes Century-Cast FRP pre-shaped straps must be ters) tanks or 6 feet (1.9 meters) on the 10 foot (3.0 <br /> used when a tank is to be anchored. Two straps are meters)diameter tanks. <br /> required for 550 gallon (2.1 cu. meters) through 6,000 The anchors must be secured in concrete and attached <br /> gallon (23 cu. meters) cylindrical tanks; except the 6,000 to the hold-down straps with wire cable (see table II) <br /> gallon, 6 foot diameter (23 cu. meters) tank which has using at least three cable clamps. <br /> four straps;four straps for 8,000 gallon (30 cu. meters) <br /> through 15,000 gallon (57 cu. meters)tanks. Six straps <br /> are required for the 20,000 gallon (76 cu.meters)tank. <br /> •' '' <br /> :. <br /> a. a o o 0,4 <br /> TABLE 11 <br /> REQUIRED WIRE ROPEITURNSUCKLE SIZE <br /> CAUTION: All hold-down straps must be uniformly Tank Spherical Cylindrical <br /> tightened.The load will be equally distributed when Wire Rope <br /> all straps are uniformly snug over the ribs of the Diameter 3/9"(10mm) 1h"(13mm) <br /> tank.Straps must be tightened until they are snug, Tensile Strength 9,000 lbs.(4080 kg) 12,500 lbs.(5670 kg) <br /> but cause no deflection of the tank.Tank deflection Tumbuckle Diameter <br /> Hook Type 3/4"(19mm) 11/4"(32mm) <br /> can be detected by checking tank diameter with a Eye Type 1/z"(13mm) 3/4"(19mm) <br /> gauge stick before and after snugging the straps. s <br /> CAUTION: Do not place straps or cables between ' Deadman <br /> the ribs of the tank,only on ribs designated by arrows A deadman must be a concrete beam with a total length <br /> ( )stenciled on tank. 12 inches (30 cm) greater than the total length of the <br /> Top Cade/Clamp Method tank. (See Table II1.) <br /> An alternative method is to clamp the cables at the top TABLE III <br /> of the tank. In this method,triple clamp a cable to each REQUIRED <br /> end of the strap, thread each cable around the anchor DEADMAN DIMENSIONS <br /> or deadman, and triple clamp the cable ends at the top TANK DEADMAN <br /> of the tank. The cable must rest on the top of the hold- SIZE SIZE <br /> 4ft.(1.2m) 6"x6" <br /> down strap between the guides provided. Adjust ten- (15«„x15«„) <br /> sion on cables evenly. 6 ft.(1.8 m) 12"x 12" <br /> (30 cm x 30 cm) <br /> 8ft.(2.4m) 12"x12" <br /> (30 cm x 30 cm) <br /> 10 ft.(3.0 m) 18"x 24" .?^ o, <br /> (46 an x 61 cm) <br /> Lay the deadman <br /> f <br /> parallel to the tank, <br /> not more than 4.5 <br /> feet(1.4 meters)from 111111 1111111IME_ <br /> TOP the centerline of the <br /> CABLE 8 foot(2.4 meters)diameter tanks,3.5 feet(1.1 meters) <br /> CLAMP on 6 foot(1.8 meters) diameter tanks,2.5 feet(0.8 me- <br /> METHOD ters)from centerline of 4 foot(1.2 meters)tank and not <br /> 12" more than 6 feet(1.9 meters)from the centerline of the <br /> r 10 foot (3 meters) diameter tank. Position each hold- <br /> -;•:; down strap so it will be centered on the face of the rib <br /> _ designated by the arrows. Fasten the wire cable to the <br /> deadman with at least three clamps. Connect the cable <br /> and strap with a turnbuckle,then tighten uniformly with <br /> other straps. <br />