Designation:C1242−16StandardGuideforSelection,Design,andInstallationofDimensionStoneAttachmentSystems1ThisstandardisissuedunderthefixeddesignationC1242;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.INTRODUCTIONNaturalbuildingstoneischosenasabuilding’scladdingforitsbeautywhichendureswithminimalmaintenance.Stoneisdurablewhenusedproperly.Exercisinggoodjudgmentwhenselectingtheparticularstone,determiningthequarryingandfabricationtechniques,designingthemethodofattachment,andinstallingallcomponentscorrectlymaximizesthesebenefits.Aproperlyexecutedstonecladdingisdesignedandinstalledwithinthecapabilitiesandlimitationsofthestoneandsupportsystemtoresistallforcesthatworkonthem.Thisguidepresentsdesignprinciplesthatrequireconsiderationwhendesigninganchoragesandevaluatingexteriorstonetobecompatiblewithitsproposeduse.Itisanoverviewofcurrenttechniquesandareviewofminimumrequirementsforsoundstoneengineeringandconstruction.Theguidedoesnotlistallpossiblemethodsofattachmentnordoesitprovideastep-by-stepprocedureforstoneanchorengineering.Knowledgegainedfromnewengineeringdesigns,testingofapplications,andtheinvestigationofexistingproblemsarecontinuallyreviewedtoupdatethisguide.Commentfromusersisencouraged.Goodjudgmentbyarchitects,engineers,andcontractorswhenspecifying,designing,engineering,andconstructingstoneandotherworkthatinterfacesstoneisnecessarytousethisguide.Usersofthisguideshouldcombineknownperformancecharacteristicsofthestone,thebuilding’sstructuralbehavior,andknowledgeofmaterialsandconstructionmethodswithprovenengineeringpractice.1.Scope1.1Thisguidecoversthecategoriesofanchorsandanchor-ingsystemsanddiscussesthedesignprinciplestobeconsid-eredinselectinganchorsorsystemsthatwillresistgravityloadsandappliedloads.1.2Thisguidesetsforthbasicrequirementsforthedesignofstoneancho...
