Designation:B790/B790M−16StandardPracticeforStructuralDesignofCorrugatedAluminumPipe,Pipe-Arches,andArchesforCulverts,StormSewers,andOtherBuriedConduits1ThisstandardisissuedunderthefixeddesignationB790/B790M;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope*1.1Thispracticeisintendedforthestructuraldesignofcorrugatedaluminumpipeandpipe-arches,andaluminumstructuralplatepipe,pipe-arches,andarchesforuseasculvertsandstormsewersandotherburiedconduits.Thispracticeisforpipeinstalledinatrenchorembankmentandsubjectedtohighway,railroad,andaircraftloadings.Itmustberecognizedthataburiedcorrugatedaluminumpipeisacompositestruc-turemadeupofthealuminumringandthesoilenvelope,andbothelementsplayavitalpartinthestructuraldesignofthistypeofstructure.1.2Corrugatedaluminumpipeandpipe-archesshallbeofannularfabricationusingrivetedseams,orofhelicalfabrica-tionhavingacontinuouslockseam.1.3Structuralplatepipe,pipe-arches,andarchesarefabri-catedinseparateplatesthatwhenassembledatthejobsitebyboltingformtherequiredshape.1.4Thisspecificationisapplicabletodesignininch-poundunitsasSpecificationB790orinSIunitsasSpecificationB790M.Inch-poundunitsandSIunitsarenotnecessarilyequivalent.SIunitsareshowninbracketsinthetextforclarity,buttheyaretheapplicablevalueswhenthedesignisdoneinaccordancewithSpecificationB790M.1.5Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesanddeterminetheapplica-bilityofregulatorylimitationspriortouse.2.ReferencedDocuments2.1ASTMStandards:2B745/B745MSpecificationforCorrugatedAluminumPipeforSewersandDrainsB746/B746MSpecificationforCorrugatedAluminumAlloyStructuralPlateforField-BoltedPipe,Pipe-Arches,andArchesB788/B788MPracticeforInstallingFacto...
