INTRODUCTIONTOTHENEWSUBPARTRPreparedbytheU.S.DepartmentofLabor,OSHAOfficeofConstructionStandardsandComplianceAssistanceTABLEOFCONTENTS•WhoisCovered–§1926.750Scope•Definitions–§1926.751•SitePreparation–§1926.752SiteLayout•Cranes–§1926.753HoistingandRigging•StructuralStability–§1926.754StructuralSteelAssembly–§1926.755ColumnAnchorage–§1926.756BeamsandColumns–§1926.757OpenWebSteelJoists•MetalBuildings–§1926.758Systems-engineeredMetalBuildings•(Non-Hoist)OverheadHazards–§1926.759FallingObjectProtection•FallProtection–§1926.760FallProtection(forconnectors,deckers,andallothers)•Training–§1926.761Training(generalandspecialized)§1926.750Scope•Thestandardcoversallemployersengagedinsteelerectionactivities.•Therearetwolistsofactivities:•Primary:Allactivitiesin.750(b)(1)arecovered(connecting,bracing,guying...)•Ancillary:Alllistedin.750(b)(2)arecovered“whentheyoccurduringandareapartofsteelerectionactivities”(sealing,caulking,elevatorbeams...)scope(cont.)Doesnotinclude:–electricaltransmissiontowers,–communicationandbroadcasttowers,–tanks.SITEPREPARATION1926.752(c)•Adequatelay-outarea•Adequateaccessroadslay-outareaandaccessroadsCRANESandFALLINGOBJECTPROTECTION§1926.753HoistingandRigging•Cranes:1926.550applies(exceptpersonnelplatformprovision)PLUSnew,additionalrequirements•Employeeexposuretooverheadloadstobereducedthroughpre-planning(.752)andworkpracticerequirements.•Allowsforexpandeduseofpersonnelplatforms(.753(c)(4)).•Prescribesproperprocedureformultiplelifts“christmas-treeing”(.753(e)“multipleliftriggingprocedure”)multiplelift§1926.759FallingObjectProtection(doesnotapplytomaterialsbeinghoisted)•Securelooseitemsaloft•Controllingcontractortobaroperationsbelowsteelerectionunlessfallingobjectprotectionprovided(fromobjectsotherthanhoistedmaterials)STRUCTURALSTABILITY§1926.755ColumnAnchorageStructuralStabilityColumnAnchorage•Requires4anchorboltspercolumn–containsdesignstrengthrequirementsandothercolumnstabilityrequirements•Assuretheadequacyofanchorboltsmodifiedinthefield–writtennoticemustbegiventoerectorthatchangesweremadeStructuralStabilitymodification/repairofanchorbolt§1926.752(a)and(b)ConcreteStrength•Concrete/mortarforfootings,piers&walls•WrittenconfirmationofASTMtest--toerectorStructuralStability§1926.756BeamsandColumnsStructuralStabilityBeamsandColumns•Twoboltsperconnectionpriortoreleasinghoistingline•Safeprocedures/devicesformakingdoubleconnectionsatcolumnsStructuralStabilityminimumoftwoboltsperconnectionbeforereleasinghoistinglinedoubleconnectionwithseatStructuralStability§1926.757OpenWebSteelJoistsStructuralStabilitysteeljoistconcepts:terms•ErectionBridging:steeljoistconcepts:terms•Erectionbridging“anchored”toa“terminuspoint”:steeljoistconcepts:•Whatyouhavetodobeforereleasinghoistingcable:–Joistendconnectionrequirements–Erectionbridging•Max#ofworkersallowedonjoist•Specsfor:–Initialconnections(specsanddevices;holesrequirement)–Finalconnections•Requirementsvarywithlengthofspan•Someexceptionsfor“constructibility”StructuralStability§1926.757OpenWebSteelJoists(cont’d)•Requirementsforlandingandplacingloadsonjoists•Somerequirementsmaybemodifiedthroughasite-specificerectionplan(tandemsettingofsome60’+joistsandrequirementsforlandingdeckingbundles)StructuralStability§1926.754StructuralSteelAssembly...
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