IS 807 (2006): Design, erection and testing (structural ...

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2 > 0 B Bhart hari N ti atakam Knowledge is such a treasure which cannot be stolen Invent a New India Using Knowledge IS 807 (2006): design , erection and testing (structuralportion) of cranes and hoists - Code of practice [MED 14:Cranes, Lifting Chains and Related Equipment] .- IndianStandardDESIGN,ERECTIONANDTESTING( STRUCTURALPORTION)OFCRANESANDHOISTS CODEOFPRACTICE(SecondRevision) ,9 BAHADURSHAHZAFARMARGNEWDELHI110002 April2006 PriceGroup-15 Cranes,LiftingChainsandItsRelatedEquipme nt SectionalCommittee,ME14 FOREWORDThisIndianStandard(SecondRevisio n)wasadoptedbytheBureauofIndianStandards ,afterthedraftfinalizedbytheCranes, , :TodealwiththesubjectconventionalIy, :1999 Codeofpracticeforuseofweldinginbridgesan dstructuressubjecttodynamicloading , ,inthecurrentrevision.

3 [nthecurrentrevision,thefollowingpointsa readded:a)Theclassificationsofthecranesa rebasedonoperatingtimeandloadspectrumand classificationfromMltoM8,b)Stateofloadin gisbasedonthehoistspectrum,c)Thevariousl oadshavebeenexplainedelaboratelyandnotch effect,d)Thefatigueandnotcheffecthavebee ndealtelaborately,, ,e)Theweldingjointdesign,weldingprocedur esandinspectionofweldingforindustrialcra neshavebeenexplainedindetail, )Thedesignofbolts,qualityofbolts, :1s3177:1999 Codeofpracticeforoverheadtravelingcranes andgantrycranesotherthansteelworkcranes( secondrevision)1S4137:-1985 Codeofpracticeforheavydutyelectricoverhe adtravelingcranesincludingspecialservice mathinesforuseinsteelwork(firstrevision) 1S807 ,3 StateofStress (CombinationofLoads) , , ,14141414142121212126%262727272727 IS807 , ~DiaphragmsandVerticalStifl% (p) ,WeldingProceduresandInspectionofWelding forIndustrialandMillCranesPage2828292929 293636373838384040424242.]

4 ,,,4242424242424244444445454545454548ii IS807:2006B-1 AllowableStressB-2 BaseMetalB-3, IS807:2006 IndianStandardDESIGN,ERECTIONANDTESTING( STRUCTURALPORTION)OFCRANESANDHOISTS CODEOFPRACTICE(SecondRevision)1 SCOPET hisstandardcoversthecodeofpracticefordes ign,manufacture,erectionandtesting(struc ture)ofEOTcranes,goliath, , , :1 SNo,800:1984875(Partl):1987(Part-2):1987 (I?art3):1987(Part4):1987(Part5):1987961 :19751363(Part1):2002(Part2):2002(Part3) :1992 TitleCodeofpracticeforgeneraIconstructio ninsteel(secondrevision)Codeofpracticefo rdesignloads(otherthanearthquake)forbuil dingsandstructures:Deadloads Unitweightsofbuildingmaterialandstoredma terials(secondrevision)Imposedloads(seco ndrevision)Windloads(secondrevision)Snow loads(secondrevision)Specialloadsandload combinations(secondrevision)Structuralst eel(hightensile)(secondrevision)Hexagonh eadbolts,screwsandnutsofproductgrade C :Hexagonhead bolts(sizerangeM5toM64)(fourthrevision)H exagonheadscrews(sizerangeM5toM64)(fourt hrevision)Hexagonnuts(sizerangeM5toM64)( thirdrevision) (Part1):2002(Part2):2002(Part3):2002(Par t4):2002(Part5).

5 20021367(Part1):2002(Part2):2002(Part3): 2002(Part5):2002(Part6):1994(Part7):1980 TitleHexagonheadbolts,screwsandnutsofpro ductgradesAandB:Hexagonheadbolts( )(thirdrevision)Hexagonheadscrews( )(thirdrevision)Hexagonnuts( )(thirdrevision)Hexagonthinnuts(chamfere d)( )(thirdrevision)Hexagonthinnuts(unchamfe red)( )(thirdrevision)Technicalsupplycondition sforthreadedsteelfasteners:Generalrequir ementsforbolts,screwsandstuds(thirdrevis ion)Tolerancesforfasteners Bolts,screws,studsandnuts ProductgradesA,BandC(thirdrevision) Bolts, (fourthrevision)Mechanicalpropertiesoffa stenersmadeofcarbonsteelandalloysteel Setscrewsandsimilarthreadedfastenersnotu ndertensilestresses(thirdrevision)Mechan icalpropertiesandtestmethodsfornutswiths pecifiedproofloads(thirdrevision)Mechani calpropertiesandtestmethodsfornutswithou tspecifiedproofloads(secondrevision)1 IS807:2006 ISNo.

6 (Part8):2002(Part9/See1):1993(Part9/See2 ):1993(Part10):2002(Part11):2002(Part12) :1981(Part13):1983(Part14):1984(Part14/S ec1):2002(Part14/Sec2):2002(Part14/Sec3) :2002(Part(Part(Part(Part6):20027):19968 ):9):996997(Part20):1996 TitlePrevailingtorquetypesteelhexagonnut s Mechanicalandperformanceproperties(third revision)Surfacediscontinuities,Section1 Bolts,screwsandstudsforgeneralapplicatio ns(thirdrevision)Surfacediscontinuities, Section2 Bolts,screwsandstudsforspecialapplicatio ns(thirdrevision)Surfacediscominuities Nuts(~hirdrevision)Electroplatedcoatings (thirdrevision)Phosphatecoatingsonthread edfasteners(secondrevision)Hot-dipgalvan izedcoatingsonthreadedfasteners(secondre vision)Stainless-steelthreadedfasteners( secondrevision)Mechanicalpropertiesofcor rosion-resistantstainlesssteelfasteners, Section1 Bolts,screwsandstuds(thirdrevision)Mecha nicalpropertiesofcorrosion-resistantstai nlesssteelfasteners,Section2 Nuts(thirdrevision)

7 Mechanicalpropertiesofcorrosion-resistan tstainlesssteelfasteners,Section3 SetscrewsandsimiIarfastenersnotundertens ilestress(thirdrevision)Designationsyste mforfasteners(thirdrevision)Inspection,s amplingandacceptanceprocedure(thirdrevis ion)Packaging(thirdrevision)Axialloadfat iguetestingofbolts,screwsandstudsTorsion altestandminimumtorquesforboltsandscrews withnominaldiameters1mmto10mmISNo1893:19 841929:1982 TitleCriteriaforearthquakeresistantdesig nofstructures(fourthrevision)Specificati onforhotforgedsteelrivetsforhotclosing(1 2to36mmdiameter)(firstrevision)2062:1999 Steelforgeneralstructuralpurposes specification (Jjihrevision)2155:1982 Specificationforcoldforgedsolidsteelrive tsforhotclosing(6to16mmdiameter)(firstre vision)3138:1966 Specificationforhexagonalboltsandnuts(M4 2toM150)3737:1966 Leathersafetybootsforworkersinheavymetal industries6610:1972 Specificationforheavywashersforsteelstru ctures6623:1985 Specificationforhighstrengthstructuralnu ts(firstrevision)6639:1972 Specificationforhexagonboltsforsteelstru ctures6649:1985 Specificationforhardenetf andtemperedwashersforhighstrengthstructu ralboltsandnuts(firstrevision)8500:1991 Structuralsteel(microalloyed)(mediumandh ighstrengthqualities) specification (,firsfrevision) Ashortendtruckattachedtotheendofonegirde r(ortoaconnectingmember,ifmorethanonebog ieisusedpergirder).

8 Ashortendtruckwhichisflexiblyconnectedto onegirder(orconnectingmember) Thatpartofacraneconsistingofgirders,truc ks,endties, IS807 (Buffer) -Anenergyabsorbingbumperorenergydissipat ing(buffer) Theoperator Theslight,upward, ,FloorOperated ,Gantry ,HotMoltenMaterialHandling(Ladle) ,ManuallyOperated ,Semi-gantry (DeadLoad) Theverticaldisplacementofabridgegirderdu etoitsown-weightplustheweightofpartsperm anentlyattachedthereto,suchasfootwalk,dr ivemechanism, (LiveLoad) Averticalplate(orchannel)betweenthegirde rwebs, Astructuralmember,otherthantheendtruck, (EndCarriage) Anassemblyconsistingofstructuralmembers, wheels,bearings,axles,etc, Awalkwaywithhandrailandtoeboards, Main (End) Theminimumhorizontaldistance,paralIeltot herunwaybetweenthecentrelineofthehook(s) andthefaceofthewall(-orcolumns) (Side) Theminimumhorizontaldistance,perpendicul artotherunway,betweenthecentrelineofahoo k(mainorauxiliary) , ,theliveloadconsistsoftheratedloadplusth eweightofthetrolley, IS807 Theratedliftedloadfromthemechanismdesign considerationshallmeantheexternalloadlif tedandhandledbythecraneandshallincludein additionthesafeworkingload,liftingtackle ssuchasmagnets,grabs,liftingbeams, Theassemblyofrails,girders, Thecriticalplates, Thedistancefromcentre-to-centreoftheoute rmostwheelsofthebridgeortrolley, Theverticalforce(withoutimpact)

9 Producedonanybridgewheelbythesumoftherat edload,trolleyweightandbridgeweight, Theverticalforce(withoutimpact) ~rialofstructuresshallbeintheformofplate , , ,pinsandbolts, ( ,5) (1)(2)(3)i)Rivets21551929ii)Pinsandbolts 1364(Parts1to5)3138iii)Highstrengthbolts and6639.,,,nuts662366493757 Table2 PhysicalPropertiesofSteel( ) (1)(2)(3)i) (E),inN/mm2ii) (G),inN/mmziii)Poisson sratio(I/m) ) (a)v)Specificgravity(y) ,thatis:a)Classofoperatingtime;andb) )Classofoperatingtimeindicatestheaverage periodperday;b)Twohundredfitlyworkingday speryearshallbeconsidered;andc) ,whichthecranewouldaccomplishduringitsli fe(seeTable3). HoistLoadSpectrumThestateofhoistloadingd eterminestheextenttowhichthecraneliftsth emaximumload,L~aoronlyalesserload,L, :2006 Therearefourstatesofloading,designatedby thevahresP=1,P=213,P=1/3andP= StressSpectrumThestateofstressaredefined inthesamemanneronthoseofthehoistedloadsw ithsame-spectraaccordingtoTable5, (cranegirders,endcarriage,plateforms,LTm achineryandelectricalitemspanel,resistan ceboxes).

10 (hookloads)comprisetheusefulloadandthese lfweightsofmembersdesignedtocarrytheusef ulload,forexample,thebottomblockspreader bar,thegrab, ,.,Table3 ClassesofUtilization( ) (.I)(2)(3)(4) )B Regularuseonintermittentduty2x105iii) )DIntensive,heavydutymorethanone2x106shi ftldayTable4 StateofLoading ( ) (1)(2)(3)(4)OVerylightCraneswhichhoistSW LexceptionallyP=oand,normally,veryIightl oadsii)LightCraneswhichonlyhoisttheSWLan dP=1/3normallyloadedaboutone-thirdofSWLi ii)ModerateCraneswhichhoisttheSWLfairlyP =2/3frequentlyandnormallyloadsbetween1/3 to213ofSWLiv)HeavyCraneswhichareregularl yloadedcloseP=ltotheSWL5 IS807 \ (-) ( ) (1)(2)(3)(4)i)VeryIightComponentssubject edexceptionallytoitsP=omaximumstressandn ormallytolightii)LightComponentsrarelysu bjectedtoitsmaximumP=113stressbutnosksll yabout1/3ofmaximumstressiii) )HeavyComponentsregularlysubjectedtoitsP =lmaximumstress6.