WIRE ROPE SELECTION CRITERIA FOR GATE OPERATING DE

DEPARTMENTOFTHEARMYEM1110-2-3200U.S.ArmyCorpsofEngineersCECW-EEWashington,DC20314-1000ManualNo.1110-2-320030September1998EngineeringandDesignWIREROPESELECTIONCRITERIAFORGATE-OPERATINGDEVICES1.Purpose.Thismanualprovidesinformationandcriteriaimportanttotheselection,installation,andmaintenanceofwireropeandfittings.Itappliesprimarilytogate-operatingdeviceswithintheCorpsofEngineers’responsibility.2.Applicability.ThismanualappliestoallUSACECommandshavingcivilworksresponsibilities.3.General.AuniqueproblemfacingtheCorpsisthewidevarietyofwireropeserviceconditions,whicharedeterminedbyropeandhoistingequipmentdesign,frequencyofuse,andtheoperatingenvironmentsthatexistatCorpsinstallations.Thismanualcoversmanyoftheseconditionsandpresentsthelateststate-of-the-arttechnologyfromcommercialandindustrialsourcesandinformationfromexistingCorpsprojects.Itspurposeistooptimizetheservicelifeofwireropeandtoreducethelikelihoodoffuturefailures.4.DistributionStatement.Thismanualisapprovedforpublicrelease;distributionisunlimited.FORTHECOMMANDER:ALBERTJ.GENETTI,JR.MajorGeneral,USAChiefofStaffDEPARTMENTOFTHEARMYEM1110-2-3200U.S.ArmyCorpsofEngineersChange1CECW-CEWashington,DC20314-1000ManualNo.1110-2-320002April2004EngineeringandDesignWIREROPESELECTIONCRITERIAFORGATEOPERATINGDEVICESTableofContentsSubjectParagraphPageChapter1IntroductionPurposeandScope.....................................................................................................1-11-1Applicability..............................................................................................................1-21-1References..................................................................................................................1-31-1DistributionStatement..............................................................................................1-41-1WireRopeFailure,ServiceConditionsandThisManual.........................................1-51-1Chapter2RopeConstructionandMaterialsClassification..............................................................................................................2-12-1Lay.............................................................................................................................2-22-3SpecialShapingofRopes/Strands.............................................................................2-32-5FlatRope....................................................................................................................2-42-6WireMaterials...........................................................................................................2-52-6CoreMaterials............................................................................................................2-62-6Coating/Filling/Plating...............................................................................................2-72-7Manufacturing............................................................................................................2-82-7Chapter3SocketsandEndTerminationsSockets.......................................................................................................................3-13-1Materials/Coatings.....................................................................................................3-23-2DrumandMiscellaneousTerminations.....................................................................3-33-2Seizing/Cutting/Splicing............................................................................................3-43-3Two-PieceRopes.......................................................................................................3-53-3Chapter4OptimumDesigniEM1110-2-320002Apr04Change1ServiceConditionsandFailureModes......................................................................4-14-1CalculatingRopeLoad..............................................................................................4-24-3Sheaves......................................................................................................................4-34-3NormalStrength.........................................................................................................4-44-4FactorofSafety..........................................................................................................4-54-4ServiceLife................................................................................................................4-64-5RopeLength/Stretch..................................................................................................4-74-5BendingRadii............................................................................................................4-84-6BearingPressure........................................................................................................4-94-6FleetAngle.................................................................................................................4-104-7Chapter5SpecifyingWireRopeStandardNomenclature..........................................................