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forSteelBuildings
andBridges
March7,2000
SupersedestheJune10,1992AISCCodeofStandardPractice
forSteelBuildingsandBridgesandallpreviousversions.
PreparedbytheAmericanInstituteofSteelConstruction,
thedirectionoftheAISCCommitteeontheCodeofStandard
PracticeandapprovedbytheAISCBoardofDirectors.
AMERICANINSTITUTEOFSTEELCONSTRUCTION,INC.
OneEastWackerDrive,Suite3100,Chicago,Illinois60601-2001
ii
Copyright©2000
by
AmericanInstituteofSteelConstruction,Inc.
mustnotbereproducedinanyformwithout
thewrittenpermissionofthepublisher.
Theinformationpresentedinthispublicationhasbeenpreparedin
accordancewithrecognizedengineeringprinciplesandisforgeneral
,thisinformation
shouldnotbeusedorrelieduponforanyspecificapplicationwithout
competentprofessionalexaminationandverificationofitsaccuracy,
suitabilityandapplicabilitybyalicensedengineer,architectorother
intendedasarepresentationorwarrantyonthepartoftheAmerican
InstituteofSteelConstruction,
herein,thatthisinformationissuitableforanygeneralorparticular
makinguseofthisinformationassumesallliabilityarisingfromsuch
use.
Cautionmustbeexercisedwhenrelyinguponotherspecificationsand
codesdevelopedbyotherbodiesandincorporatedbyreferenceherein
sincesuchmaterialmaybemodifiedoramendedfromtimetotime
SteelConstruction,
thantorefertoitandincorporateitbyreferenceatthetimeoftheini-
tialpublicationofthisedition.
PrintedintheUnitedStatesofAmerica
CodeofStandardPracticeforSteelBuildingsandBridges,March7,2000
AMERICANINSTITUTEOFSTEELCONSTRUCTION
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PREFACE
Asinanyindustry,tradepracticeshavedevelopedamongthosethatare
involvedinthedesign,purchase,fabricationanderectionofstructural
,
itisusefulforowners,architects,engineers,generalcontractors,construc-
tionmanagers,fabricators,steeldetailers,erectorsandothersthatareasso-
thecontraryarecontainedinthecontractdocuments,theexistingtrade
practicesthatarecontainedhereinareconsideredtobethestandardcus-
tomandusageoftheindustryandaretherebyincorporatedintotherela-
tionshipsbetweenthepartiestoacontract.
manysectionsofthisCode,anon-mandatoryCommentaryhasbeenpre-
paredtoprovidebackgroundandfurtherexplanationforthecorresponding
.
SincethefirsteditionofthisCodewaspublishedin1924,AISC
hascontinuouslysurveyedthestructuralsteeldesigncommunityandcon-
,this
Codehasbeenperiodicallyupdatedtoreflectnewandchangingtechnolo-
gyandindustrypractices.
ThiseditionisthefifthcompleterevisionofthisCodesinceitwas
Committee,themembershipofwhichincludedsixstructuralengineers,
twoarchitects,onegeneralcontractor,sevenfabricators,onesteeldetailer,
madeinthisrevision:
Commentaryinformation,whenavailable,hasbeenplacedimmediate-
lyfollowingitscorrespondingCodeprovisions.
Theuseoftheterm“Owner”throughoutthisCodehasbeengenerally
(butnotcompletely)eliminated,,oneor
bothoftheterms“Owner’sDesignatedRepresentativeforDesign”and
“Owner’sDesignatedRepresentativeforConstruction”hasbeenused.
.
CodeofStandardPracticeforSteelBuildingsandBridges,March7,2000
AMERICANINSTITUTEOFSTEELCONSTRUCTION
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Requirementsforexistingstructureshavebeenaddedtocoverdemoli-
tionandshoring,protectionagainstdamage,surveyingorfielddimen-
sioningandhazardousmaterials.
TheclassificationsofmaterialsinSection2havebeeneditorially
revisedandexpanded.
Provisionsfortheresolutionofdiscrepancieshavebeenaddedin
.
,theorderofprecedenceofcontractdocumentshas
beenchangedforsimplicityandtoreflectcurrentpractices.
Provisionsforfast-trackprojectdeliveryhavebeenaddedinSection
.
Theresponsibilitiesofthevariousentitiesinvolvedintheshopand
erectiondrawingapprovalprocesshavebeensimplifiedandclarifiedin
Section4.
Issuesregardingtheuseofdesigndrawingsbythefabricatorand/orthe
.
Thepermissiblevariationfromtheoreticalcurvatureforacurvedmem-
.
-
ationsincamberforfabricatedtrusses.
-
fiedtorecognizethatthemajorityofsteelinbuildingstructuresneed
notbeprimedorpainted.
Coverageofbearingdeviceshasbeenrevised:installationofbearing
.
Useofthetermsself-supportingandnon-self-supportinghasbeen
eliminatedandreplacedwiththeprovisionsfortemporarysupportin
.
-
ingerectionhavebeenrevised.
Theintentoftheprovisionsthataddresstheaccumulationofmilltol-
erancesandfabricationtolerancesandtheirrelationshiptotheerection
.
Quality-assuranceprovisionsinSection8havebeenrevisedtorecog-
nizeboththeAISCQualityCertificationprogramforfabricatorsand
theAISCErectorCertificationprogram.
CodeofStandardPracticeforSteelBuildingsandBridges,March7,2000
AMERICANINSTITUTEOFSTEELCONSTRUCTION
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v
.
AESSrequirementsforHSSweldseamshavebeenaddedinSection
.
Inaddition,manyotherchangeshavebeenmadethroughoutthisCode.
BytheAISCCommitteeontheCodeofStandardPractice,
,III,Chairman
,ViceChairman
,Jr.
,Jr.
JamesMirgliotta
,II
,Jr.
,Secretary
CodeofStandardPracticeforSteelBuildingsandBridges,March7,2000
AMERICANINSTITUTEOFSTEELCONSTRUCTION
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TABLEOFCONTENTS
Glossary................................................................................................ix
..............................................................1
Scope..........................................................................................1
ReferencedSpecifications,CodesandStandards......................1
Units............................................................................................3
DesignCriteria............................................................................3
ResponsibilityforDesign..........................................................3
PatentsandCopyrights..............................................................4
ExistingStructures......................................................................4
Means,MethodsandSafetyofErection....................................4
..................................................6
DefinitionofStructuralSteel......................................................6
OtherSteel,IronorMetalItems................................................8
................................11
StructuralDesignDrawingsandSpecifications......................11
,ElectricalandMechanical
DesignDrawingsandSpecifications........................................16
Discrepancies............................................................................16
LegibilityofDesignDrawings................................................17
RevisionstotheDesignDrawingsandSpecifications............17
Fast-TrackProjectDelivery......................................................18
..........................................20
OwnerResponsibility..............................................................20
FabricatorResponsibility..........................................................20
UseofCADFilesand/orCopiesofDesignDrawings............21
Approval..................................................................................23
Shopand/orErectionDrawingsNotFurnished
bytheFabricator......................................................................25
............................................................................26
MillMaterials..........................................................................26
StockMaterials........................................................................27
CodeofStandardPracticeforSteelBuildingsandBridges,March7,2000
AMERICANINSTITUTEOFSTEELCONSTRUCTION
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........................................30
IdentificationofMaterial..........................................................30
PreparationofMaterial............................................................30
FittingandFastening................................................................31
FabricationTolerances..............................................................32
ShopCleaningandPainting....................................................35
MarkingandShippingofMaterials..........................................38
DeliveryofMaterials................................................................39
..............................................................................41
MethodofErection..................................................................41
Job-SiteConditions..................................................................41
Foundations,PiersandAbutments..........................................42
BuildingLinesandBenchMarks............................................42
InstallationofAnchorRods,FoundationBolts
andOtherEmbeddedItems......................................................42
InstallationofBearingDevices................................................44
Grouting....................................................................................45
FieldConnectionMaterial........................................................45
LooseMaterial..........................................................................46
........................46
......................................................................49
............................................51
..................................................................51
..................................................................63
,AlterationsandHolesforOtherTrades..........................63
..............................................................63
............................................................................64
....................................................................65
............................................................66
General......................................................................................66
InspectionofMillMaterial..................