土木工程专业英语论文

Researchofhigh-risebuildingfireprevention专业班级：学生姓名：学号：论文成绩：评阅教师：体典型空间防火优化设计研究正文：改革开放以来，我国市场经济蓬勃发展，各种类型的商业建筑如雨后春笋般涌现。然杂流线、与城市多层面多点衔接等特点，极大程度地增大了灾害风险，足部分现代商业综合体迅速发展的设计需要，当因结构、功能、造型等效的性能化防火措施进行建筑和规划设计。与此同时，性能化防火设计人员疏散模拟等方面的突出优势，也将被更多地运用于优化“条文式”设计规范框架内的规划与建筑方案设计。可见研究大型商业综合体的性能化防火设计措防火设计方法，为建筑和城市减灾防灾目标的实现提供更有力的保障。Basedontheperformance-basedfireprotectiondesignmethodoftypicalcommercialcomplexspacefirepreventionoptimizationdesignresearchSincethereformandopening,ourcountrymarketeconomybooming,thevarioustypesofcommercialbuildingshavesprungup.Yetpeopleenjoyingthehighefficientandconvenientshoppingconsumptionandentertainmentatthesametime,commercialcomplexesandthelargescalecomplexcomplex,diversefunctions,thenumberofmany,streamline,andcitylevelmorecohesivecharacteristicsofdrasticallyincreasestheriskofdisasters,theespeciallyurbanandbuildingmostlikelytooccurinthemined-outarea,theriskoffire.Traditionalbuildingfireprotectiondesignbasedon"provision"codeforfireprotection,cannotmeetthedesignneedstobepartoftherapiddevelopmentofmoderncommercialcomplex,whenbecauseofthespecialrequirementsofstructure,function,shape,etc,inthecurrentnationalfiredidnotexplicitlystipulatedinthetechnicalspecificationandtheconditionsstipulatedinthecurrentnationalfireprotectionspecificationisnotapplicable,inaccordancewiththenationalfireprotectiontechnologyspecificationofdesigndifficulties,willtakeamoretargeted,moreadvanced,economic,reasonableandeffectiveperformance-basedfireprotectionmeasuresforconstructionandplanninganddesign.Atthesametime,theperformance-basedfireprotectiondesignmethodforitsinfirescenarioandevacuationsimulationandsoontheprominentadvantageof,willalsobemoreappliedtooptimizethe"provision"firepreventiondesignspecificationwithintheframeworkoftheplanningandarchitecturaldesign.Visiblestudymeasurestheperformance-basedfire-protectiondesignoflargecommercialcomplex,andbyusingthemethodofperformance-basedfireprotectiondesignofadjustingandoptimizingtheplanningandarchitecturaldesigninordertoavoidandreducethefirehazardisoneoftheimportantsubjectstobesolved.Thisthesisisdividedintotenchapters,respectivelyintroducedtheresearchbackgroundandsignificance,theresearchstatusofcommercialcomplex,theperformance-basedfireprotectionathomeandabroad,theelementsandfiredanger,buildingthefiremechanismandparametersoftheperformance-basedfire-protectiondesign,fivecommercialcomplextypicalfirepreventionmeasuresofthespace,finallyputforwardtheconclusionandprospect.Corecontentintheresearchofthispaperiscombinedwiththefeatureofcommercialspaceofcomplexelementsoffirecharacteristicsandthreeimportantindicatorsinthedesignofbuildingfireprotection(firepartition,traveldistance,evacuationwidth),refiningthefivekindsoftypicalspaceofcommercialcomplex,namelythelevelofintensivespaceandverticalspace,largeopenspace,narrowchannelspaceandundergroundspace,intheperspectiveofarchitectureandurbanplanning,ontheonehand,usingcomputertechnology,thedesignschemeof"superspecification"forsafetyevaluationoftheperformance-basedfire-protectiondesign,ontheotherhandtheprovisionstypespecificationwithintheframeworkofthedesignmethodofoptimization.Performance-basedfireprotectionstrategyforfireprotectiondesignandeventhroughoutthebuilding,thedesignideaoftheplanninganddesignprocess,preliminaryalreadyforourshowaprospectinthefieldofapplication,thisarticleaimstofurtherperfectanddevelopmentonthebasisofthedigitaltechnologymethodofperformance-basedfireprotectiondesignofbuildingsandurbandisasterreductiontoprovideamorepowerfulsafeguardtoachievethegoalofdisasterprevention.(二)DamageidentificationofreinforcedconcretestructuresafterfireandreinforcementFireexceptcausedagreatlosstohumanlifeandproperty,injuryanddamageonthebuildingstructureitselfisalsoveryserious.Especiallyinrecentyears,becauseofthehigh-risebuildings,largescaleandtheuseofcompound,thehappeningofbuildingfirewasgraduallyrisingtrend.Inallkindsofbuildingstructure,reinforcedconcretestructureholdsthelargestshare.Sofar,domesticandforeignresearchworkofthefireresistanceofconcretestructuralcomponentsislimited,thecomprehensiveidentificationandevaluationoffiredamagestructurealsoatgropingstage,ourcountry'satpresentthereisnoclearrulesorregulationstofollow,alsocannotadapttotheneedsofthedevelopmentofengineeringconstruction.Therefore,thedetectionandidentificationofstructuredamageafterfireandrepairdesignschemeoptimizationresearchbothathomeandabroadcausedtheenoughattention,in-depthstudyofitstheoryandpracticeisofgreatsocialsignificanceandeconomicbenefits.Thisarticlecollectsandanalysestheexistingfireliteraturesaboutreinforcedconcretestructureathomeandabroad,combinedwithengineeringpracticeexperienceandspecificengineeringexample,thematerialmechanicsperformanceofreinforcedconcretestructuresafterfireandthechangeofcomponentbearingcapacity,damagedetectionandidentificationmethodofthestructureandstructurereinforcementcalculationanddesignsystemisanalyzedandsummarized.Onthisbasis,thekeyofreinforcedconcretestructuresafterfiredetectionmethod,thedamageddegreeofcomprehensiveappraisalstandardandreinforcementdesignschemearestudiedanddiscussed,andputsforwardsomeeffectivemethodsandSuggestions,forthefutureofbuildingfireactualengineeringresearchandprovidesomereferencesforrepairreinforcementdesign.Thispaperfromtheanalysisoffireresistanceofreinforcedconcretematerialsandcomponents,summedupthesteelandconcretematerialsinhightemperaturemechanicalpropertiesundertheactionoffire,furtherexpoundsthefireresistanceandbearingcapacityofreinforcedconcretestructures.Buildingfiretemperaturedeterminationisacomplexwork,thispaperanalyzesthemethodstodeterminethefiretemperature.Thensystematicallysummarizesthedetectionmethodsofmaterialsandthedamagedstructureafterfire,andanalyzestheirrespectiveadvantagesanddisadvantagesandapplicablescope.Andsummeduptheconcretestructureandcomponentsoffiredamagelevelandevaluationcriteria,fortheactualfireengineeringdetectionandidentificationofthedamagedstructureandrepairreinforcementapplication.Thisarticlealsoprobesintotheconcretememberafterthefireremainingbearingcapacitycalculation,thecommonreinforcementmethodsandreinforcementoftheconcretestructurecalculationtheoryandreinforcementdesign.Finally,thispaperapplytheabovetheoryresearchspecifictofireengineeringinstance.Inengineeringexamples,thispaperdeeplystudiedthefollowingcontent:(1)inviewoftheconcretestructureafterfiredamageavarietyofdetectionmethodisappliedtoconductsitetest;(2)comprehensivefiresceneinvestigationandtestresultshowsthedamageidentificationandbearingcapacityoftheproject,allkindsofthedamagedstructurereliabilityconclusions;(3)takethetypicaldamagedconcretemembers,suchas:framebeamsandcolumnsastheresearchobject,analyzedthefiredamagephenomenonandfireresistance,givessomeverificationconclusion;(4)accordingtotheappraisalresult,advancessomeSuggestionsonthep