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14th Edition Steel Construction ManualIntroduction to the newAISC PublicationsSpecification for Structural Joints using High-StrengthBolts (AISC 348-09)Code of Standard Practice (AISC 303-10)Specification for Structural Steel Buildings (AISC 360-10)Ohio Structural Engineers Association (SEAoO)Cincinnati, OHPart 16.1Part 16.2Part 16.3(AISC 360-10)(AISC 348-09)(AISC 303-10)Specification forStructural SteelBuildingsSpecification forStructural Joints usingHigh-Strength BoltsCode ofStandardPracticeFebruary 9, 2011Jie ZuoAISC Staff EngineerLouis F. Geschwindner SeminarANSI/ AISC 348-092010 Specification and 14th Edition ManualFull day seminar 0.80 CEU / 8 PDHPurchase the Manual for 100 (a 350 value!)Design Examples illustrate provisions of theManual and the SpecificationCleveland, OH on February 23, 2012Columbus, OH on April 5, 2012The 2009 RCSCSpecification for StructuralJoints Using High-StrengthBoltsAISC 348-09For more informationhttp://www.aisc.org/seminarsANSI/ AISC 348-09TITLE CHANGEANSI/ AISC 348-09Why use RCSC Specification?2004:Specification for Structural Joints UsingASTM A325 or A490 Bolts2009:MARKETINGThere PUBLICATIONSare sections in RCSC Specification thatare not reproduced in the AISC SpecificationREDESIGNDesign, installation, and inspection of boltedjointsSpecification for Structural Joints UsingHigh-Strength Bolts1

ANSI/ AISC 348-09HIGHLIGHTSTC BoltsTC boltsCoatings for A490 boltsANSI/ AISC 348-09New ASTMProvisionsMARKETINGPUBLICATIONSThermalcutting of holesSnug tightdefinitionREDESIGNHot-Dip GalvanizingMARKETINGPUBLICATIONSASTM F2280A490 strengthlevel TC boltREDESIGNASTM F1852A325 strength level TC boltTreated the same as A325 and A490 boltsexcept they are Tension Controlled (TC) boltsANSI/ AISC 348-09ANSI/ AISC 348-09Coatings for A490 BoltsMARKETINGPUBLICATIONSZinc/Aluminum coatingREDESIGNDacrometis a common product usedASTM F1136Does not have hydrogen trapping conditionsHot-Dip GalvanizingMARKETINGPUBLICATIONSA153 is still applicable for structural shapesREDESIGNASTM F2329 replaces A153for threaded partsMechanical Galvanizing is still based uponASTM B695ANSI/ AISC 348-09ANSI/ AISC 348-09Thermal cutting of holesMARKETINGPUBLICATIONSREDESIGNBolt Shear StrengthMARKETINGPUBLICATIONSRCSC still uses strength and serviceabilityREDESIGNseparationfor slip resistance.Consistent with what was done in the 2010AISC Spec, bolt shear strength values havebeen increased.Laser, plasma, flame, etc.Must meet surface roughness limits2

FOR END-LOADED CONNECTIONSANSI/ AISC 348-09MARKETINGPUBLICATIONSREDESIGNANSI/ AISC 360-10TABLE J3.2MARKETINGPUBLICATIONSREDESIGNANSI/ AISC 348-09Nominal Stress of Fasteners and Threaded PartsPre-Installation Verificationand Installation2448275460686068MARKETING Requirements have been clarifiedPUBLICATIONS Short-bolt usage of a DTI now permittedREDESIGN Differencebetween pre-installation valuesand installation values clarified2005 2010[b] End loaded connections with fastener pattern 38 in., Fnv 83.3% of tabulated valueANSI/ AISC 348-09ANSI/ AISC ATIONSREDESIGN3

ANSI/ AISC 348-09ANSI/ AISC 348-09Snug-Tight Definition (OLD)MARKETINGPUBLICATIONSFull effort of an ironworker with an ordinaryREDESIGNspud wrenchPlies in firm contactANSI/ AISC 348-09SUMMARYMARKETINGNew material specificationsPUBLICATIONSRevised bolt shear strength valuesREDESIGNClarification of provisionsNot many changesANSI/ AISC 303-10HIGHLIGHTSScopeTolerances“Option lPre-DetailingConference Changes ChangeREDESIGNStructural SteelSnug-Tight Definition (NEW)MARKETINGPUBLICATIONSREDESIGN“ the condition that exists when all of theplies in a connection have been pulled intofirm contact by the bolts in the joint and all ofthe bolts in the joint have been tightenedsufficiently to prevent the removal of thenuts without the use of a wrench.”ANSI/ AISC 303-10The 2010 AISC Codeof Standard PracticeAISC 303-10ANSI/ AISC 303-10Scope (Section 1.1)MARKETING“OtherPUBLICATIONSStructures” addedREDESIGNConsistentwith AISC 360-10Buildings and Bridges (same as always)(Specification for Structural Steel Buildings)Erection DrawingsEOR Structural NarrativeAESS WeldsAppendix A: BIM4

ANSI/ AISC 303-10Tolerances (Section 1.9)MARKETINGPUBLICATIONSSection1.9Added as invoking languageREDESIGNAddresses tolerances not explicitly covered in theTolerances remain in Sections 6 and 7CodeTolerances not covered are not to be assumed aszeroANSI/ AISC 303-10Drawing Information(Section 3.1)MARKETINGImproved list of items that should be provided inPUBLICATIONSthe contractdocumentsWorksREDESIGNwith information added on columndifferential shortening and anticipateddeflections in the Commentary to Section 7.13ANSI/ AISC 303-10ANSI/ AISC 303-10Structural Steel (Section 2.1)MARKETINGPUBLICATIONSIf attached to structural frameREDESIGN StructuralWhat is considered Structural Steel?Base plates vs. Bearing platesIf loose items do not attach to structural frame NOT Structural (loose lintels, etc.)ANSI/ AISC 303-10Pre-Detailing Conference(Section 4.1)MARKETINGGoal:PUBLICATIONSTo openlines of communication anddevelopa common understandingREDESIGNabout the projectANSI/ AISC 303-10Erection Drawings(Section 4.7)EOR Structure Narrative(Section 7.10.1)New sectionExample narratives added to Commentaryinformation when it is neededconceptMARKETINGPUBLICATIONSSimilar requirements as for shop drawingsREDESIGNOrientedtoward ensuring the Erector hasMARKETINGPUBLICATIONSDescribes special erection conditions or otherREDESIGNconsiderationsthat are required by the designHighlights special considerations in theerection of cantilevered members5

ANSI/ AISC 303-10ANSI/ AISC 303-10AESS Welds (Section 10.2.5)MARKETINGPUBLICATIONSREDESIGNIf you can’tsee it from where its installed,Visual inspection of welds performed from theinstalled vantage pointOption 3Delegated ConnectionDesign Workit doesn’t matterANSI/ AISC 303-10ANSI/ AISC 303-10Option 1Option 1MARKETINGPUBLICATIONSThe SER designs the connectionsREDESIGNThe intent of this approach is that completedesign information necessary for detailing theconnection is shown in the structural designdrawingsThe complete connection design shall beshown in the structural design drawingsMARKETINGPUBLICATIONSREDESIGNThe steel detailer will then be able to transferthis information to the shop and erectiondrawingsANSI/ AISC 303-10Option 2MARKETINGPUBLICATIONSREDESIGNThe SERprovides the schematics and theThe connection shall be designated to beselected or completed by an experiencedsteel detailerANSI/ AISC 303-10Option 2MARKETINGPUBLICATIONSREDESIGNIt is not the intent that this method be usedwhen the practice of engineering is requiredsteel detailer completes the details6

ANSI/ AISC 303-10ANSI/ AISC 303-10Option 3MARKETINGPUBLICATIONSREDESIGNThe SERprovides design criteria and aThe connection shall be designated to bedesigned by a licensed professional engineerworking for the le to use multiple methods on sameprojectREDESIGNOne of these options must be specified foreach connection typelicensed professional engineer working for thefabricator designs the connectionsANSI/ AISC 303-10ANSI/ AISC 303-10Communication RequiredCommunication RequiredMARKETINGPUBLICATIONSREDESIGNANSI/ AISC 303-10Communication RequiredRestrictions on types of ents, ASD or LRFD loads, andConnection design loads and associatedcriteria must be definedsimilar information is the keyWhat substantiating connection information isrequired? (if any)MARKETINGPUBLICATIONSREDESIGNANSI/ AISC 303-10Substantiating Early on, the fabricator and SER need toInformation submitted by the fabricator whenoption (2) or option (3) is designated forconnections (if requested by the SER)discuss and agree on representativesamples of the required substantiatingconnection information7

ANSI/ AISC 303-10ANSI/ AISC 303-10Review and ApprovalMARKETINGPUBLICATIONSREDESIGNThe connection design engineer must reviewand confirm in writing, as part of thesubstantiating connection information, that theshop and erection drawings properlyincorporate the connection designsTeamworkMARKETINGPUBLICATIONSREDESIGNThe SER is inviting the fabricator and thelicensed professional engineer in responsiblecharge of the connection design to be a partof the SER’s design team.This review does not replace the approvalprocess of the shop and erection drawings bythe SER, it is an addition to itANSI/ AISC 303-10ANSI/ AISC 303-10SUMMARYFinal AuthorityMARKETINGPUBLICATIONSREDESIGNThe SER is identified as the final authority inthe case of a dispute between the SER andthe licensed professional engineer inresponsible charge of the connection designwhen option (3) is specifiedThis is simple and straightforward, and it ishow it must be because only the SER has thefull knowledge of the structureANSI/ AISC 348-09The 2010 Specificationfor Structural SteelBuildingsSimple and straightforward approach to apractice that already exists, is in wide use,and currently is widely varying in how it isusedMARKETINGPUBLICATIONSLanguage allows all parties to control theirREDESIGNown risks,and no party is asked to assumethe responsibility for the negligence ofanother partyANSI/ AISC 360-10The 2010 AISCSpecificationAISC 360-10AISC 360-10AISC 360-05AISC 360-108

K2. HSS-TO-HSS TRUSS CONNECTIONSANSI/ AISC 360-10HIGHLIGHTS2005Chapter N. Quality Control and Quality Assurance- Minimum requirements for QC, QA, andNDTMARKETINGPUBLICATIONSREDESIGNChapter J. Design of Connections- Bolt shear strength values increasedChapter K. Design of HSS and Box MembersConnections- Reorganized in a tabular format withfiguresK2. HSS-TO-HSS TRUSS CONNECTIONS20102010TABLE K1.1 Available Strengths ofPlate-to-Round HSS ConnectionsMARKETINGPUBLICATIONSREDESIGNANSI/ AISC 360-10SUMMARYMinimal changesMost changes are simplificationsSome changes add new capabilitiesSome changes increase economyANSI/ AISC 360-10The 2010 AISC Specification, 2010Code of Standard Practice, and 2009RCSC Specificationare free for download atwww.aisc.org/freepubs9

The 14th Ed. Steel ConstructionManual is now available in theAISC online bookstore!A second option for the location of theA secondtitle.”option for the location of the“branding“branding title.”AISC Regional EngineersAISC Upper Midwest RegionalEngineerMonica Shripka,PE, LEED APSenior RegionalEngineerSoutheast RegionFor more information or to contact your regional engineer, log on to 444 N. Damen, 4WChicago, IL 60625www.aisc.org/myregionThank YouA second option for the location of theA secondtitle.”option for the location of the“branding“branding title.”American Institute of Steel ConstructionOne East Wacker Drive, Suite 700Chicago, IL 60601zuo@aisc.orgThere’s always a solution in steel.7510

AISC Publications Ohio Structural Engineers Association (SEAoO) Cincinnati, OH February 9, 2011 Specification for Structural Joints using High-Strength Bolts (AISC 348-09) Code of Standard Practice (AISC 303-10) Specification for Structural Steel Buildings (AISC 360-10) Jie Zuo AISC Staff En