AmericAn nAtionAl stAndArds institute/ steel deck ...

1 SComposite steel Floor deck - Slabs STEELDECKI N S T I T U T Es copyright 2012 steel deck instituteC - 2011 Standard forAmericAn nAtionAl stAndArds institute / steel deck instituteComposite steel Floor deck - SlabsC - 2011 Standard forAmericAn nAtionAl stAndArds institute / steel deck instituteSTEELDECKI N S T I T U T Es presentaccurate,reliable,and usefulinformation on design ofcompositesteel , herein doessoattheir presentaccurate,reliable,and usefulinformation on design ofcompositesteel , herein doessoattheir FaceacknowledgementsThis Standard reflects the state-of-the-art pertaining to composite steel deck -slabs.

2 The steel deck institute acknowledges the valuable contributions of the researchers, designers, and members of the industry that have made this Standard gratefully acknowledged is the previous work of the Composite steel deck Committee of the AmericAn Iron and steel institute and the steel deck with Concrete stAndArds Committee of the AmericAn Society of Civil Engineers, who previously developed the legacy Standard for Structural Design of Composite Slabs (ASCE 3).Composite steel Floor deck - SlabsC - 2011 Standard forAmericAn nAtionAl stAndArds institute / steel deck instituteSTEELDECKI N S T I T U T Es deck -Slabs, hereafterreferredtoastheStandard,shallgo vernthematerials, design,anderection ofcompositeconcreteslabsutilizingcoldfor medsteel deckfunctioningasapermanentformandasrein forcementfor positivemomentinfloorandroofapplications in Appendicesshall bepart UserNotes, UserNote Attachments,andCommentaryshall not be Note.

3 User Notes,User Note Attachments,andCommentaryareintendedtopr ovide practicalguidanceinthe useandapplication designer ,thisshallmeantheentitythatisresponsible tothe Ownerforthe overallstructural design oftheproject,includingthesteel Note:Thisis usuallytheStructural Engineer withtheinch-poundssystem ofunits. However,anyconsistentsystem of unitsshall be permittedto be unitsorequationsshownin parenthesesinthisstandardareforinformati on only,andare notpart not definedinthisStandard,AISIS100 orAISI/AISC shall havethe ordinaryacceptedmeaningforthecontextfor bepermittedtospecify deck basemetalthicknesseitherby dimensionalthickness, orbygagewhentherelationship of basemetalthicknesstogage has beendefinedbythe deckmanufacturer.

4 However,forthe purpose ofdesign,thedimensionalthicknessshall be used. User Note:BothAISIandSDInowspecifysteelthickn essinterms of designthicknessinlieu of gagethickness. Gagethicknesses, however,arestillcommonlyreferredtointhem etaldeckindustry. No. Design ThicknessMinimum ofthe designthicknessComposite steel Floor deck - SlabsC - 2011 Standard forAmericAn nAtionAl stAndArds institute / steel deck instituteSTEELDECKI N S T I T U T Es :Thefollowing documentsor portionsthereofarereferencedinthisstanda rdandshall beconsideredpart ofthe requirements documentsconflictwiththisstandard,thereq uirements ofthisStandardshall (ACI) 318-11,BuildingCodeRequirementsforStruct uralConcrete (AISI) , North AmericanSpecificationforthe Design ofCold-FormedSteelStructuralMembers,Incl udingSupplement 2 (February 2010)

5 ,TestMethodsforMechanically FastenedCold-FormedSteelConnections ,TestStandardforCantilever TestMethodforCold-FormedSteel Diaphragms ,Standard Definitionsfor UseintheDesign ofSteelStructures, 2007 ofSteelConstruction(AISC) 360-10,SpecificationforStructuralSteelBu ildings TestingandMaterials(ASTM) A615 / A615M- 09b StandardSpecification for DeformedandPlainCarbon-SteelBarsforConcr eteReinforcement A653 / A653M- 10 StandardSpecificationforSteelSheet,Zinc- Coated(Galvanized) orZinc-Iron Alloy-Coated(Galvannealed)bythe A706 / A706M- 09b StandardSpecification forLow-AlloySteel DeformedandPlainBarsforConcreteReinforce ment A820 / A820M 06, StandardSpecificationforSteelFibersforFi ber-ReinforcedConcrete A1008 / A1008M- 10, StandardSpecificationforSteel,Sheet,Cold -Rolled,Carbon,Structural, High-StrengthLow-Alloy,High-StrengthLow- AlloywithImprovedFormability,Solution Hardened,andBake A1064 / A1064M- 10 StandardSpecificationforSteelWireandWeld edWireReinforcement,Plainand Deformed.

6 ForConcrete 10 D7508 / D7508M- 10 StandardSpecificationforPolyolefinChoppe dStrandsfor Engineers(ASCE) 7-10,Minimum DesignLoadsforBuildingsand OtherStructures (AWS) :2010, :2008, DeckInstitute(SDI) ,TestStandardforCompositeSteel , stAndArds ,and Documents:Composite steel Floor deck - SlabsC - 2011 Standard forAmericAn nAtionAl stAndArds institute / steel deck instituteSTEELDECKI N S T I T U T Es Documents:Thefollowing documents or portionsthereofarereferencedinthisstanda rdandshall beconsideredpart ofthe requirements documentsconflictwiththisstandard,requir ements ofthisStandardshallgovern: DeckInstitute(SDI) , DiaphragmDesignManual, 3rd Edition,includingAppendicesIthroughVIUse r Note: Thefollowing documentsarereferenced withinthe user notes.

7 Association ofState Highwayand Transportation Officials(AASHTO) ,Customary Units,5th Edition, with 2010 (ACI) 215R-92,Considerationsfor , ,Causes,Evaluation, 318-11, 544 3R-08, GuidefortheSpecification,Proportioningan dProduction , ofSteelConstruction(AISC) Design Guide ,Floor Vibrations Dueto Human Activity,1997 (AISI) , North AmericanSpecificationforthe Design ofCold-FormedSteelStructuralMembers,Incl udingSupplement 2 (February 2010) ,TestStandardforCantilever TestMethodforCold-FormedSteel Diaphragms TestingandMaterials(ASTM) A653 / A653M- 10 StandardSpecificationforSteelSheet,Zinc- Coated(Galvanized) orZinc-Iron Alloy-Coated(Galvannealed)bythe Hot-DipProcess A1008 / A1008M- 10, StandardSpecificationforSteel,Sheet,Cold -Rolled,Carbon,Structural, High-StrengthLow-Alloy,High-StrengthLow- AlloywithImprovedFormability,Solution Hardened,andBake Hardenable E119 - 10b, Standard TestMethodsfor Fire Tests (CRSI) ofStandardPractice, 28th Edition,2009 DeckInstitute(SDI)

8 ,Composite deck DesignHandbook, 2nd Edition , DiaphragmDesignManual, 3rd Edition,includingAppendicesIthroughVI ,Metal DeckandConcreteQuantities(SDIW hitePaper) ,Manual ofConstruction withSteel deck , 2nd EditionComposite steel Floor deck - SlabsC - 2011 Standard forAmericAn nAtionAl stAndArds institute / steel deck instituteSTEELDECKI N S T I T U T Es Use ofCompositeSteelFloor DeckinParkingGarages. (UL) (WRI) ,Manual Documents: Theconstruction documentsshall describethecompositeslabsthatareto beconstructedandshallinclude , phaseloads.

9 Plansforallcompositeslabsshowingthesize, locationandtypeofall decksupports. ,type(profile),and designthickness. (includingyieldstrength)anddeckfinish. ,spacing,and details. ,f .c (andtoleranceifrequiredforfireratingasse mbly). orgrade ofreinforcingsteelorwelded wirereinforcement(ifused). ,extentandlocation ofallreinforcement(ifused). , typeand dosage(if used).User Note:Thefollowingisanexample ofacompositeslabasitcould bespecifiedonthecontractdrawings: Compositeslabshallconsist of 2 inch deep G-60galvanizedcompositesteel deck , (20gage),(TypeXXbyXX,Inc.)

10 Orapprovedequivalent) with 3 inchthick,3000 psi, normal-weightconcretetopping(totalthickn ess= 5 inches)reinforced with XXX. usedfordeck oraccessoriesshallhaveaminimumspecified yieldstressthatmeets orexceeds 33ksi(230 Mpa).1 Forthecase wherethesteel deckactsasaform,designyieldandtensilestr essesshall be determinedinaccordance withAISIS100,Section A2. wherethesteel deckactsastensilereinforcementforthecomp ositedeck-slab,thesteelshallconformtoAIS IS100,Section A2. Whenthe ductilityofthesteelmeasured overatwo-inch(50mm) gagelengthis 10% orgreater,themaximum designyieldstressshall notexceedthelesser of 50 ksi ductilityofthesteelmeasured overatwo-inch(50mm)gagelengthislessthan 10%,themaximum designyieldstressshall notexceedthelesser of50 ksi(345 Mpa) or steel Floor deck - SlabsC - 2011 Standard forAmericAn nAtionAl stAndArds institute / steel deck instituteSTEELDECKI N S T I T U T Es ductilityofthesteel usedfordeck,measured overatwo-inch(50mm)