b'MOTOR OUTPUT TORQUE vs ULTIMATE CAPACITYSquare Shaft 2-7/8" Dia 3-1/2" Dia 4-1/2" Dia240220200Ultimate Capacity x 1,000 lb.180160GRAPH 6 -MOTOR OUTPUT TORQUE vs ULTIMA 140 PACITYGraph 1. TE CATorque Efficiency Factor - "k" to Shaft Configuration240 120220Sq. Shaft (k = 10) 1002002" Sq. Bar (k = 8.5) 80 Earth Contact ProductsUltimate Capacity x 1,000 lb.180 2-7/8" Dia (k - 9)160 3-1/2" Dia (k - 8) 60140 4-1/2" Dia (k = 7) 40120 2010080 060 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 2340 Graph 6.Graph 1. Motor Torque x 1000 ft-lb2001 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23Motor Torque x 1000 ft-lb* SafeUsedesignsuggests thatthepilesbeTAE-150-84extension 7footextensioninstalleddeeperthan10-1/2feet belowgrade section & hardware. (6-9 effective length)becausethereisweakandconsolidatingfillTAB-150-SUB Standard Utility Bracket. Thissoil near the surface.The Safe Use design foundation bracket fits over the 1-1/2 squaresuggestsalongerstandardshaftlengthbe bar and mounts to the perimeter beam.installed. Depth for pile becomes 11-3/4 ft + 1 ft (below9. Torque Anchor Specifications: grade termination) Total depth = 12-3/4 ft. TAF-150-60 12-141-1/2 inch solid square It is recommended that additional extensions areshaft that has a 12 and a 14 diameter plate on hand should the final shaft torque requirementon the 5-0 long shaft, of 2,200 ft-lb is not achieved at 12 feet.End of Example 6AReview of Results of Example 6 & 6AOne can see that the result obtained by the Quick-Solve analysis clearly suggested thesame pile that was determined by the analysis using the bearing capacity equations.Therewere some variations in the design because the Quick-Solve design method predicted ahigher footingloadandhigherinstallationtorque. Thiswascausedinpartbythehigherultimateloadsuggestedbythe Quick-Solve designusingStructuralLoadEstimatingTables from Chapter 6.Once again, similar results were determined in this example, butsuccess when using Quick-Solve designing requires that good judgment be used in theestimatingthequalityofconstruction(structuralweightestimate).Thisisveryimportantbecause if one can select highly accurate data from the tables and graphs in Chapter 6.Thisresult will be more accurate design results.ECP Technical Design ManualTorque Anchor Design Examples2021 Earth Contact Products, L.L.C.2021-09 Chapter 5Page 102 All rights reserved'