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When connecting the end of a hold-down strap to the • Refer to Table H-6 for minimum wire rope diameter anchor, common methods include: (see Figure H-4) and strength. • Drop-forged turnbuckle(A) TABLE H-6 • Looped wire rope(B) Wire Rope • Combination of both A and B (C) Tank Minimum Minimum • After hardware is installed, all exposed metal on Diameter Diameter Ultimate Strength the anchoring system must be protected against 4' 3/8'(lomm) 13,120 lbs(5,951 kg) corrosion. _ _ 6', 8', 10', 12' '/z"(13mm) 23,000 lbs(10,433 kg) Figure H-4 • Follow recommendations of the wire rope j manufacturer, as well as all industry standards when selecting, handling,attaching or connecting wire rope. • Tighten all hardware uniformly and follow the JA JBC manufacturer's torque specifications. Double check the tightness once the anchoring system is complete. • When forming a loop in the wire rope, a splice is required for connecting the two ends together. Use a minimum of four clamps for%"wire rope and a minimum of six clamps for'/"wire rope. Place the rope ends parallel to each other and install the clamps DROP-FORGED TURNBUCKLES as shown in Figure H-7. May be used in place of all or a portion of wire rope Figure H-7 described in this section. TABLE H-5 Tank Minimum Turnbuckle Diameter(by type) 3/8"Wire Rope/Clamp Alignment i Minimum � Dia. Hook Jaw ; Eye Working I Load Limit" 4' 1/2' 3/$' V 1,200 lbs 1/2"Wire Rope/Clamp Alignment 6' 3/a" '/2' '/z 2,200 lbs 8' 2%" '/a° 3/a° 5,200 lbs 10' 2%" '/a3/a' 5,200 lbs DEADMEN ANCHORS 12' 2%" W 3/a 5,200 lbs Deadmen are made of reinforced concrete, designed according to the American Concrete Institute(ACI)code, *ultimate load should be 5 times working load limit at least 12' long, placed end to end equal to tank length, and with at least two anchor points per deadman. WIRE ROPE • Refer back to Table A-5 for CSI deadmen dimensions and weight. • Each tank requires its own deadman on both sides, or if one deadman is used between adjacent tanks, Wire rope should never be in direct contact with any it must be doubled in width. portion of the tank or damage may occur. • A separate anchor point must be provided for each strap. • A method to use wire rope on the ribs over the tank ° CSI deadmen are engineered and sized to the tank top is available(see Supplemental Documents, ordered. Section R). • Use 6 x 19 Improved Plow Steel IWRC,or better,wire ° Placement of CSI deadmen is the same as standard rope. deadmen. • Lay the deadmen in the excavation parallel to the tank and outside of the tank shadow. (see Figure H-8). 17