土木工程系毕业设计外文资料翻译.docx
- 文档编号:27364790
- 上传时间:2023-06-29
- 格式:DOCX
- 页数:21
- 大小:461.77KB
土木工程系毕业设计外文资料翻译.docx
《土木工程系毕业设计外文资料翻译.docx》由会员分享,可在线阅读,更多相关《土木工程系毕业设计外文资料翻译.docx(21页珍藏版)》请在冰豆网上搜索。
土木工程系毕业设计外文资料翻译
原文
土木工程系毕业设计外文资料翻译
ConstructionManagementModernization,(5):
32(8):
53-56,71.
ProspectiveAnalysisofaNewBuildingStructureAdopting multi-ribbedcompositewallstructure
Abstract:
Atpresent,withaseriousenergycrisis,theenergyconsumptionofresidentialbuildingisrisingdramatically,anditisessentialforustodevelopenergy-savingbuilding.Multi-ribbedcompositewallstructure(MRCWS)isanewtypeofstructurewhichadaptstothepoliciesofwallreformandenergy-savingbuilding.Ithasgreatadvantagesinenergy-conserving,environment-protecting,seism-resistingandcost-savingwhichfitinwiththesustainabledevelopmentofrealestateindustry.
Inthispaper,theconstitutionofMRCWSisintroduced,andthecharacteristicsarediscussedwhichindicatethatMRCESisanewhigh-techgreen&environmentalstructure.InordertoshowtheadvantagesofMRCWS,comparisonsaremadewithtraditionalstructures,constructiontechniquesandapplicablerangearepresented,andtheeconomicbenefitofMRCWSisanalyzedindetailfromtheviewofproductioncostandprojectschedule,withapracticalprojectgivenasanexampletoshowthelowcostofMRCWS.Atlast,thesupportsandawardsofMRCWSarelistedandthegeneral-develophistoryisreviewed.ItdrawstheconclusionthatMRCWSwillhaveabroadprospect.
Keywords:
multi-ribbedcompositewallstructure,sustainabledevelopment,economicbenefit.
1.INTRODUCTION
Presently,theenvironmentdestructionandenergycrisis,whicharebecomingmoreandmoreserious,havebeenthecrucialproblemsrestrictingthenationaleconomyandsustainabledevelopmentinChina(Tian2005).
China,agreatenergy-consumingcountry,eatsup300milliontonsofpetroleumand1.8billiontonsofrawcoaleachyear,amongwhichtheenergyconsumptionofresidentialbuildingoccupies25%一27%.Bynow,thereareabout43billionsquare-meterbuildingsinchina,but98%ofthemareofhighenergyconsumption,andinthe1.6-2billionsquare-meterbuildingsnewlybuilteachyear,morethan95%ofthemarehigh-energy-consuming.Soitisurgentforustodevelopenergy-savingbuildingsinChina.Luckily,theChinesegovernmenthasnoticedthisseriousproblemandismakingagreatefforttochangethisphenomenon.
Adaptingtothenationalpoliciesofwallreformandenergy-savingbuilding,Multi-ribbedcompositewallstructure(MRCWS)wasdevelopedbyXi’anUniversityofArchitecture&TechnologyandBeijingJiaotongUniversity.Itshowsgreatadvantagesinenergy-conserving,environment-protecting,seism-resistingandsoonwhichfitinwiththesustainabledevelopment.MRCWSiscomposedofpre-castmulti-ribbedcompositewallboard(MRCW),cast-in-placeconcealedouterframeandfloor.MRCW,anewkindofpre-castboardcomponent,iscomposedoflow-ratio-of-reinforcementRCframegridsfilledwithporouslightweightblockswhicharemadeofindustrialwaste,anditisthemainbearingcomponentinMRCWS.Concealedouterframe,composedofendframecolumn,connectingcolumnandconcealedbeam,isusedtoconfineandtobearloadstogetherwithMRCW(Yao2003).TheconstitutionofMRCWSisshowninFig.1
Fig.1:
Multi-ribbedcompositewallstructure
1.Professor,SchoolofCivilEngineering&Architecture,BeijingJiaotongUniversity,Beijing,China;PH(86)10-51687249;FAX(86)10-51683956;Email:
yaoqf808@.
2.Ph.D.Candidate.SchoolofCivilEngineering&Architecture,BeijingJiaotongUniversity.Beijing,China;PH(86)10-51687249;FAX(86)10-51683956;Email:
xiaoleiattri@sina.corn
3.Ph.D.Candidate.SchoolofCivilEngineering&Architecture.BeijingJiaotong.University.Beijing.China;PH(86)1m51687249;FAX(86)10-51683956:
Email:
zhangjiel0006@126.coom
2.CHRACTERISTICSOFMRCWS
Realestateindustryisabasicanddominantindustryinthenationaleconomy,anditssustainabledevelopmenthasagreatinflunceonthatofthewholesociety.Inordertodevelopsustainably,therealestateindustryneedsnotonlytosatisfythedemandsofus,butalsotoprotectthelandandenvironmentforourdescendants.
Asanewhigh-techbuildingstructure,MRCWShasmanycharacteristicswhichadapttothesustainabledevelopmentofrealestateindustry.
2.1EnergyConservation
Accordingtothegovernment’s1lthFive-YearPlan(2006-2010),energyconsumptionforevery10,000-yuan(1,298U.S.dollars)ofgrossdomesticproductshouldbereducedby20percentbytheendofthatperiod.Meanwhile,thedischargeofsulfurdioxideandchemicaloxygendemandshoulddropby10percent.Toachievethisenergysavingandemissionreductiontargets,agoodeffortshouldbemadebyrealestateindustry.
Comparedwithtraditionalstructures.MRCWShasagoodperformanceofheatpreservationwiththeuseofporouslight-weightblocks.Meanwhile,anewtechniqueconnectinglocal-heat-conservationwithwhole-heat-conservationisapplied,soitwillbemucheasiertosatisfythenationaldemandofreducingenergyconsumptionby65%before2010andwilldomuchgoodtothedevelopmenttotheresidentialenergyconservation.
2.2EnvironmentProtection
Chinahasapopulationofnearly1.3billion,whilethecultivatedlandareaisonly95millionhectares,namely1.43mupercapita,1essthan40%oftheaveragelevelintheworld.However,withanannualbrickoutputofmorethan600billionpieces,morethan1.0billioncubicmetersofclayisconsumed,whichmeansmorethan500,000-Mucultivatedlandisdestoriedandabout70milliontonsofcoalisconsumed.Facingseriouslydeterioratedenvironment,itisrequiredinthe10thfive-yearwallreformplanthatsolidclaybrickshouldbeforbiddenin170citiesbytheendofJune30,2003,andinallthecitiesbytheendof2010.
Gettingridofclaybricksandrecyclingagreatdealofindustrialwaste,MRCWScansavelargeamountsoflandandkeeptheenvironmentalmorebalanced.Statisticsindicate
thatabout8,000square-meterlandwouldbeprotectedand2,000~3,000cubic-meterindustrialwastebereusedforbuildinganareaofl0.000square-meterhouses.
2.3SeismResistance
Withalightdeadweightof7.2kN/㎡whichisjustabout53%ofsolid-brick-and-concretestructure,65%ofperforated-brick-and-concretestructure,72%offramestructure,or68%ofshearwallstructure.MRCWScandramaticallyreducetheseismicload.Whatismore,astheblockscrackandcloseoverandoveragain,alargeamountofseismicenergyisdissipated,justasadamperdoes.ResearchesandexperimentsshowthatMRCEShasagoodseismicperformancewhichleadstoanexcellentsafetyanddurability,anditisessentialforthesustainabledevelopmentofrealestateindustry.
Inaword,thedevelopmentofMRCWSshowsalotofhigh-techcharacteristics.Accordingtothereformofwallmaterialandtherequestofdevelopingnewenergy-savingbuildings,adoptingnewmaterial,newstructureandnewtechniques,connectingthesubjectsofstructuralengineering,materialengineeringandarchitecturalenvironment,thedevelopmentofMRCWSindicatesthat:
itisakindofgreen&environmentalstructurewhichsatisfiesthedemandsofsustainabledevelopment;anditrevealstheChineseconceptionof“takingmanasthefoundation”asitcankeepthestructuremuchsafer.
3.PROSPECTIVEANALYSIS
Generallyspeaking,asahigh-tech-project,itshouldhaveadvancesinfunction,technologyetc.(Fu2003)However,thecostmustbereasonable,oritwouldbetooexpensivetobeacceptedbytheusers,andthatwouldmakeitno-market-competition.InordertoshowtheprospectofMRCWS,comparisonsaregoingtomadewithtraditionalstructuresbelow.
3.1ComparisonswithTraditionalStructures
Accordingtotheworldindex,noothersimilarresearchesandprojectswerefound,andMRCWSwasevaluatedasakindoforiginalandadvancedstructure.Experimentsandprojectsmakeitclearthat:
MRCEShasgreatadvantagesoverotherstructureswidelyusedatpresent,showninTablel(Zhang2006).
Table1:
CostofMRCWSwith200mm-thicknessWallboard
Table2:
CostofMRCWSwith175mm-thicknessWallboard
Table3:
CostofMCSwith240mm-thicknessWallboard
Table4:
CostofMCSwith200mm-thickness&365mmthicknessWallboard
Formasonry-concretestructure(MCS),althoughitishandytogetmaterialsandthecostarelow,thedeadweightistooheavy,theconstructionisexcessivelycomplicated,andthetechnologylevelisextremelylow.Whatisworse,alotofpreciousresourcesmaybedestroyed(claymustbeusedinMCS),andalargenumberoffielsmaybedamaged.
Hollow-blocks-andconcretestructure(HBCS)canbeappliedtotakeplaceofclay-bricksstructure,butmostoftheworkhastobedonemanually,andtheworkingprocedureiscomplexaswell.Meanwhile,leaketc,andtheseismicperformanceofHBCSisnotverygoodeither.
Framestructure(FS)isawidely-usedstructureowingtoitsfreearrangementandcapaciousspace,andithasavastapplicability.However,asaresultoflowstiffness,thedisplacementisverylarge,whichlimitstheconstructingheightofbuilding.Moreover,thebeamsandcolumnsinFSaresohugethattheymakethehousein-aestheticanduncomfortable.Inordertosolvethisproblem,anewkindofframestructurewithspecially-shapedcolumnshiddeninthewall(shortforSCFS)wasdeveloped.Neverthelessthebehaviorofthiscolumnisverycomplicatedanditreducesthecapabilityofthestructure,sotheapplicationofthisstructureisnarrowed,especiallyintheseismicarea.
Thoughshearwallwallstructure(SWS)cannotbefreelydesignedasFS,itissuitableforbuildingswithshortspan.AndthestiffnessofSWSismuchmorestrengthendthanFS,whichdecreasesthedisplacement
- 配套讲稿:
如PPT文件的首页显示word图标,表示该PPT已包含配套word讲稿。双击word图标可打开word文档。
- 特殊限制:
部分文档作品中含有的国旗、国徽等图片,仅作为作品整体效果示例展示,禁止商用。设计者仅对作品中独创性部分享有著作权。
- 关 键 词:
- 土木 工程系 毕业设计 外文 资料 翻译
![提示](https://static.bdocx.com/images/bang_tan.gif)