CalculationsCalculation SheetProject titleCalc noClientProj noCalculation titlePhase/CTRPathPageof1.0IntroductionThe purpose of this calculation is to document the design of a padeye. This spreadsheet was developed primarily to satisfy the requirements of Reference 1, Edwin P Russo and Rudolph A Hall, " Systematic Approach to Lifting Eye Design"1.1Applied LoadingThe lifting loads were determined from a lift analysis which considered a load factor of 2.0 applied to the structure gravity loads, in order to determine the design load to be used for the padeye design.From SACS analysis of bridge lift:Padeye design load72.2kips2.0Padeye ConfigurationThe principal features of the padeye are shown below, while details have been included on drawing INSERT DRAWING NUMBER.where:SWL=safe working loadb=angle from horizontalRh=Hole radiusr=Cheek plate radiusR=Main plate radiusTp=Main plate thicknesst=Cheek plate thicknessT=Total plate thicknessh=Base widthb=Distance from edge of taper to center of holec=Distance from base of plate to center of holeSw=Cheek plate weld lege=Main plate to cheek plate clearancea=Taper anglep=Shackle pin diameterThe dimension T should equal 60 - 85% of shackle jaw width.The pin hole diameter, d, should be 1/8" greater than the selected shackle pin sizeThe main plate radius is approximately R = 3 RhCheek plate radius is approximately r = R - 1.5tThe cheek plate thickness (t) should be less than or equal to the plate thickness (Tp).Shackle load36.1kips=18.05short tonsUse G-2130 Crosby 2-inch shackle, capacity 17 tons, shackle pin size1.62992inchesRefer tohttp://catalog.thecrosbygroup.com/maininterface.htmShackle jaw width A =2.382inTotal padeye width should be between1.429> and