ASTM B 512-1994 镍铬硅合金坯锭和棒材

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【英文标准名称】:Structuraldesignoflow-risebuildings-Codeofpracticefortimberfloorsandroofsforhousing
【原文标准名称】:低层建筑物的结构设计.住宅用木地板和屋顶的实用规程
【标准号】:BS8103-3-2009
【标准状态】:现行
【国别】:英国
【发布日期】:2009-11-30
【实施或试行日期】:2009-11-30
【发布单位】:英国标准学会(GB-BSI)
【起草单位】:BSI
【标准类型】:()
【标准水平】:()
【中文主题词】:狭板;梁;支撑件;设计;架设(施工作业);紧固件;固定;平屋顶;楼板;等级(质量);住房建筑;施加荷载;小梁;标志;坡屋顶;檩条;椽子;屋顶盖板;屋架;屋顶;尺寸;彼此间隔的;结构设计;建筑用木料;木材
【英文主题词】:Battens;Beams;Bracings;Design;Erecting(constructionoperation);Fasteners;Fixing;Flatroofs;Floors;Grades(quality);Housing;Imposedloading;Joists;Marking;Pitchedroofs;Purlins;Rafters;Roofdecking;Rooftrusses;Roofs;Size;Spaced;Structuraldesign;Structuraltimber;Wood
【摘要】:ThisPartofBS8103givesrecommendationsforthesizesoftimberelements,fixings,andtheirconnectionswithmasonrywalls,etc.Itappliestodetached,semi-detached,terracedhousesandflats(withnotmorethanfourself-containeddwellingunitsperfloor,accessiblefromonestaircase)ofnotmorethanthreestoreysaboveground,intendedfordomesticoccupation.Therecommendationsalsoapplytosingle-storeynon-residentialbuildings,e.g.domesticgaragesandannexes,notexceeding36minfloorarea.Thedesignofproprietaryhousingsystems,i.e.crosswallconstructions,timberframedhouses,steelorconcreteframedconstructions,concretepanelconstructions,isnotcoveredbythisstandard.TherecommendationsofthisPartofBS8103areapplicableonlytohousingwhere:a)theconstructioncomprisesmasonrywalls,timberroofs,suspendedtimberorprecastconcreteintermediatefloors,suspendedtimberorconcretegroundfloors(eithersuspendedorgroundbearing);b)theroofprofileissymmetricalduopitch,monopitchorflat;NOTE1Pitchedroofsoftrussedrafterortraditionalconstructionsarecovered,butnotconstructionsusingprincipaltrusses.Hipendsand“L”shapedplansarenotspecificallycoveredalthoughvaluesaregivenforjackrafters.c)themaximumclearspanofapitchedroofdoesnotexceed12.0mandimposesatotalloadonthesupportingperimeterwallsnotgreaterthan12kN/mrun;d)gableandseparatingwallsareofmasonryconstructionextendinguptotherooflineinthecaseofpitchedroofs;e)theroofareaisnotlargerthan200m2onplan;or,inthecaseofpitchedroofswherenoparapetsexist,oneoftheroofdimensionsdoesnotexceed10m;f)therearenootherbuildingswithin1.5moftheperimeterofthebuilding;g)theroofhasnoabruptchangesofheightgreaterthan1monwhichsnowdriftingcouldoccur;NOTE2Thislimitationdoesnotapplytothechangeofheightbetweenthemainroofandtheroofofalowerannexe,iftheroofareaoftheannexedoesnotexceed36m.Chimneysanddormerswhoseverticalelevationareas,againstwhichadriftcouldform,arelessthan1m,neednotbeconsideredasbeinganabruptchangeofheight.h)themaximumclearspanofanyfloorjoistorflatroofjoistdoesnotexceed6.0m;i)thedesignwindcriteriaiswithinthescopeofBS8103;NOTE3GuidanceisgiveninBS8103-1andBS8103-2onhowtodeterminewhetherthedesignwindcriteriaforabuildingonaparticularsiteiswithinthescopeandapplicationofBS8103.GuidanceisgiveninAnnexMregardingthedeterminationofsnowloadforaparticularsite.j)nopartofanywallorroofishigherthan15mabovethelowestadjacentgroundlevel;k)floorjoists,ceilingjoists,flatroofjoists,commonorjackraftersortrussedraftersarespacedatcentreswhichdonotexceed600mm;l)thestabilityrequirementsanddimensionallimitationsaccordwithBS8103-1:1995+A1:1995,Clause5.Thesizesoftimbershowninthespantablesarelimitedtothosenormallyreadilyavailablebutdonotprecludetheuseoflargerordifferentsizesifjustifiedbyspecialistcalculation.ThedesignrequirementsandthosefordurabilityandtimberpreservationgiveninthisPartofBS8103arerelatedonlytostructuralconsiderations.Fortrussedrafterroofs,thisstandardcontainsonlyasmuchinformationasisnecessaryandmainlycomprisesreferencestoBS5268-3.
【中国标准分类号】:P20
【国际标准分类号】:91_040_30;91_060_20;91_060_30
【页数】:212P.;A4
【正文语种】:英语


【英文标准名称】:DistributionSystemsOperationandManagement
【原文标准名称】:分布式系统操作和管理
【标准号】:ANSI/AWWAG200-2004
【标准状态】:作废
【国别】:美国
【发布日期】:2004
【实施或试行日期】:
【发布单位】:美国国家标准学会(US-ANSI)
【起草单位】:ANSI
【标准类型】:()
【标准水平】:()
【中文主题词】:分布系统;管理;操作
【英文主题词】:Distributionsystems;Management;Operation
【摘要】:Thisstandarddescribesthecriticalrequirementsfortheeffectiveoperationandmanagementofdrinkingwaterdistributionsystems.
【中国标准分类号】:P01
【国际标准分类号】:93_025
【页数】:
【正文语种】:英语