b'Design Example 6Determining Force Applied to Pier from Field DataFor this example it is assumed that the technician Equation 2: Hydraulic Cylinder Forcein thefield installation reportstates heused a F Cyl= A cylx P cyldriving pressure on a PPB-300-EPS pier pipe of5,500 psi.The actual installation force on the Where: F Cyl=Cylinder force on pier lbpierpipeneedstobedetermined becauseitis P cyl=Hydraulic Pressure5,500 psi 2A cyl =Effective Cylinder Area5.94 inmust be submitted to the engineer.(HYD-300-DC Cylinder = 5.94 in 2 )Use Equation 2 from Chapter 5 to determine the F Cyl = 5.94 in 2x 5,500 lb/in 2downward force on the pier pipe: F Cyl = 32,670 lb.End Design Example 6Design Example 6ADetermining Force Applied to Pier - Quick -Solve DesignMethodQuick -Solve estimating is used to determine bottom of the graph until encountering the linethe force on the pier when the cylinder pressure withlongdashesfortheHYD-300cylinder.being applied has been recorded.Use Graph 4 Readtothelefttodeterminetheforceonthefrom Chapter 6. Begin by locating 5,500 psi pier.pressureonthe HYD-300-DC cylinder atthe F Cyl = 33,000 lb.lower edge of the graph. Read upward from the End Design Example 6AGRAPH 4.CYLINDER FORCE VS. HYDRAULIC PRESSUREHYD-350-DC Drive Cyl (8.29 sq.in.) PPB-350 & PPB-400 Pier SystemsHYD-300-DC Drive Cyl (5.94 sq.in)PPB-300 Pier SystemsHYD-254 (5.16 sq.in.) Lifting Ram90858075 Earth Contact Products706560Cylinder Force lb x 1,000555045403530252015105500 1000 1500 2000 2500 3000 3500 4000 4500 5000 5500 6000 6500 7000 7500 8000 8500 9000 9500 10000Hydraulic Pressure - psiReview of Results of Example 6 & 6AThe result obtained by the Quick -Solve design analysis on this example shows that it is possible toobtain results very quickly that are relatively accurate.It is important to accurately lay out the lines onthe graph to obtain best results.The Quick -Solve design method is a great tool because it returneduseful results quickly without requiring any mathematical calculations.ECP Technical Design Manual -Steel Pier Design Examples2021 Earth Contact Products, L.L.C.2021-09 Chapter 7 - Page 143 All rights reserved'