twin-path® slings in action - Hanes Supply, Inc
twin-path® slings in action - Hanes Supply, Inc
twin-path® slings in action - Hanes Supply, Inc
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YOUR SLING AND RIGGING SPECIALISTLift Eng<strong>in</strong>eer<strong>in</strong>gcaTo f<strong>in</strong>d c (hypotenuse)Given: a 2 + b 2 = c 2Example: 4 2 + 3 2 = c 2 ; 16 + 9 = c 2 ; 25 = 5bLOAD ANGLE FACTORS5,000 lbs. 5,000 lbs.LH—L= LAF (Load Angle Factor) Example:15— = 1.5 (LAF)H 10Tension <strong>in</strong> L = —Lx L's share of the loadH10,000 lbs.H = 10' L = 15'Tension <strong>in</strong> L =15— x 5,000;101.5 x 5,000 Ten. = 7,500 lbs.TENSION IN OVERHEAD HOISTSA6'2'6'BTen. <strong>in</strong> A = —6x 3,0002Ten. <strong>in</strong> A = 9,000 lbs.6,000 lbs.(As load moves, tension changes)OFF-SET CENTER OF GRAVITY (SHARE OF THE LOAD)A3' 7'10,000 lbs.BInverse Proportion To DistanceLift Po<strong>in</strong>t ALift Po<strong>in</strong>t B7 + 3 = 10, — = .7010.70 x 10,000 = 7,000 lbs.7 + 3 = 10, — = .3010.30 x 10,000 = 3,000 lbs.OFF-LEVEL LIFT POINTSL1D1H1H2D2L2W x D2 x L1TL1 =(D2 x H1) + (D1 x H2)W x D1 x L2TL2 =(D2 x H1) + (D1 x H2)LEGENDW = Load WeightL1 = Length Leg 1L2 = Length Leg 2H1 = Vertical Height 1H2 = Vertical Height 2D1 = Horizontal Distance 1D2 = Horizontal Distance 2HEADQUARTERS: 55 James E. Casey Drive • Buffalo, NY 14206 PHONE: 716.826.2636 FAX: 716.826.4412 www.hanessupply.com158
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