Designation:A796/A796M−17StandardPracticeforStructuralDesignofCorrugatedSteelPipe,Pipe-Arches,andArchesforStormandSanitarySewersandOtherBuriedApplications1ThisstandardisissuedunderthefixeddesignationA796/A796M;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope*1.1Thispracticecoversthestructuraldesignofcorrugatedsteelpipeandpipe-arches,ribbedandcompositeribbedsteelpipe,ribbedpipewithmetallic-coatedinserts,closedribsteelpipe,compositecorrugatedsteelpipe,andsteelstructuralplatepipe,pipe-arches,andunderpassesforuseasstormsewersandsanitarysewers,andotherburiedapplications.Ribbedandcompositeribbedsteelpipe,ribbedpipewithmetallic-coatedinserts,closedribsteelpipe,andcompositecorrugatedsteelpipeshallbeofhelicalfabricationhavingacontinuouslockseam.Thispracticeisforpipeinstalledinatrenchorembankmentandsubjectedtoearthloadsandliveloads.Itmustberecognizedthataburiedcorrugatedsteelpipeisacompositestructuremadeupofthesteelringandthesoilenvelope,andbothelementsplayavitalpartinthestructuraldesignofthistypeofstructure.ThispracticeappliestostructuresinstalledinaccordancewithPracticeA798/A798MorA807/A807M.1.2Corrugatedsteelpipeandpipe-archesshallbeofannu-larfabricationusingrivetedorspot-weldedseams,orofhelicalfabricationhavingacontinuouslockseamorweldedseam.1.3Structuralplatepipe,pipe-arches,underpasses,andarchesarefabricatedinseparateplatesthat,whenassembledatthejobsitebybolting,formtherequiredshape.1.4Deepcorrugatedplatesarecoveredinthisstandardasameansofprovidingdesignpropertiesonly.Thestructuraldesignofdeepcorrugatedstructuresisnotsupportedbythisstandard.1.5Thisspecificationisapplicabletodesignininch-poundunitsasA796orinSIunitsasA796M.Inch-poundunitsandSIunitsarenotnecessarilyequivalent.SIunitsareshowninbracketsinthetextforclarity,buttheyaretheapplicablevalueswhenthed...
