Residential IndustrializationWord下载.docx

Residential IndustrializationWord下载.docx

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1.Introduction

Thesteelstructurehasdevelopedthedominantbuildingstructures,steelbuildingsindevelopedcountriesshowingawiderangeofusesandlargeamountofsteel.Steelstructureiswidelyusedinhigh-level,ultra-high-risebuildings,largespanandlargespacebuildings,smallandmedium-sizedindustrial,commercial,community,education,health,high-levelultra-high-levelcivilianresidential.Suitableforfactoryproductionofcomponentsinalargenumberofresidentialbuildings,residentialsteelstructure,youcandesign,production,construction,installationintegration,andchange"

on-siteconstruction"

asa"

factory-built."

Improvethehousingindustrialization,commercializationlevel,andlightweightsteelstructureresidentialbasisofthelowest.Itissuitableforsoftground,easytoinstall,fastconstructioncycleisshort,fastreturnoninvestmentandconstructionofsewageenvironment,goodseismicperformance,recyclable,economicalandenvironmentallyfriendly,withgoodprospectsfordevelopmentintheresidentialmarket,knownasthetwenty"

greenbuilding"

oneofthefirstcentury[1-2,8].

Figure1.Thesteelintegratedbuilding

Thehousingindustryisaformofeconomicactivityisaroundthelevelofresidentialconstructioninthenationaleconomy.Housingindustrytoacceleratethetechnologicaldevelopmentofresidential,enrichandimprovetheresidentialaccessoryproducts,optimizetheresidentialdevelopment,operationandmanagementofaseriesofeconomicactivitiesingeneral.Itssteelstructureintheformofsteelresidentialbuildingsystemwasabasisforclassificationofbuildingsystem,abranchofthebuildingsystem.Thesteelstructureresidentialbuildingsystemsforminglater,lessstudythemathomeandabroad.Withthefurtheruseofsteelintheconstructionsector,steelresidentialdevelopmentwillenteramoreadvancedstage,steelresidentialbuildingsystemwillalsobecomeanindependentandcompletebuildingsystem,andpeoplepayattention.

Thesteelstructureofthehousingindustrythatisasteelhousingforthefinalproduct,throughthe

socializationoflarge-scaleproduction,steelresidentialinvestment,development,design,construction,

serviceandprocesscentralizedandunifiedasawholeformoforganization.Thesteelstructureofthe

housingindustryisthetrend;

steelresidentialdevelopmentwillbringsignificanteconomicbenefitsto

allaspectsofsteelresidentialconstruction[3-4,9-10].

2.

Steelconstructionhousingindustrydevelopment

Figure2.Industrializationofresidentialconstructioncommunity

ForeignhousingindustryisupdevelopmentafterWorldWarII.Nationaleconomiesintherecoveryperiodarethehousingshortageandtheresidentialcapacitylow.Inthe1950s,someEuropeancountrieshadsolvedtheproblemofhousingshortage,settingofftheclimaxofindustrializationofresidentialbuildings,causingarevolutionoftheresidentialconstructionfield.Tothe1960s,residentialconstruction,industrializationacrossEurope,andextendedtoJapan,USA,France,Canada,Australiaandotherdevelopedeconomies.Residentialindustrializationfromquantitativedevelopmenttoqualityandimprovethetransitionofthedirectionofthehousingproductionandmanagement,standardizationandsocialemergence,residentialmodernizationbeginsinearnest.Buttherearedifferentcountriesinthehousingindustryofthehistoricalbackground,economicstatus,nationalpolicy,thefocusofdevelopmentandachievements.

Accordingtoreports,thelightsteelstructureofthefastestgrowingintheUnitedStates,1965youngsteelintheUnitedStatesaccountedforonly5%oftheconstructionmarketin1990roseto53%.1993haverisento68percentin2000,hasrisentomanycivilianhouses,villasandresorthousingwithsteel.U.S.residentialconstructionmarketdevelopimproved,residentialcomponentsandpartsstandardization,serialization,anditsspecialization,commercializationofthehighlevelofsocialization,almost100%[5].Therearekindsofconstructionmachinery,equipment,apparatus,rentalofaverydeveloped,andcommercializationofupto40%.U.S.residentialconstructionisnotsubjecttotheimpactofWorldWarII,itdidnottaketheEuropeanlarge-scaleprefabricatedroad,butfocusontheresidentialindividualizedanddiversified.U.S.residentialconstructionofmoreinthesuburbs,mainlylow-riselightsteelkeelstructure,inaccordancewiththesamplesortheirsatisfactionwiththeprogramdesignhousing.Thereareresidentialproductcatalogonthemarket,theprocurementofmaterials,components,parts,commissionedbythecontractorconstruction.Andwhichischaracterizedbystandardized,serializedcomponentparts,mechanizationofconstructionatthesite.

Theresultissatisfaction,goodquality,highefficiency,andappropriateprice.

Table1.ChinaHousingIndustrializationBase

Number

HousingIndustrializationBase

Residentialindustryexperience

1

BeijingBeiXinBuildingMaterials

Group

Mainlyengagedinlightsteelstructuresystem,wallinsulation

materials,suchasthehousingindustry

2

TianjinSecondConstruction

Concretefilledsteeltubularhousingindustrialization

3

HefeiEconomicDevelopmentZone

Constructioncharacterizedbytheapplicationofnew

technologiesfortheresidentialdemonstrationproject

4

ShenzhenCity

ThehousingindustryModelCity

5

WenzhouChintGroup

Industrializationofresidentiallow-voltageelectricalequipment

6

JinanforceNorit

Solarenergyandbuildingintegratedresidentialindustrialization

InChinaoverthepastfewdecades,residentialconstructiontechnologyandmeanshavebeenrelativelybackwardinhousingasacommodityproductionisstillrelativelyextensive,lowproductivity,longconstructionperiod,thegradeisnothigh,thequalityisdifficulttobeguaranteed.Inordertomeettheneedsofeconomicdevelopmentandglobalcompetition,wemustcompletelychangethetraditionalmodeofproduction.Change"

sitebuilt"

manufactured"

change"

wetwork"

jobsbydoing"

toreducethesteelbanding,theconstructionoftemplatesandtemporarysupporttediousandcumbersomeprocess,reducelaborintensityandimprovelaborproductivity,reducecosts,guaranteequality,shortentheconstructionperiod.Meanwhile,thetraditionalwaytoproducehigh-qualityresidentialrequiresalotofskilledworkers,whilethenumberofskilledworkersinChinaisobviouslyinsufficientinthefuturethisphenomenonwillbecomemoreserious.Residentialindustrializationofproduction,industrialization,theassemblyofthewaytosimplifytheproductionprocess,tospeeduphousingconstruction,andimprovetheresidentialgrade,qualityandtechnicalcontent,theoperationofthetechnicalrequirementstoreducedependenceonskilledworkerswillbegreatlyreduced,whichcanchangefrombothsidesofthemodesofproductionandproductionlaborinChinalaggingbehindtheresidentialconstructionmethods[6-7].

Figure3.Steelstructurebuildingsystem

3.Weldingsimulationofconstructionprocess

Weldedstructureisanobviousfeatureisthelargeweldingstressanddeformation.Weldingproduction,thevastmajorityoftheweldingmethodusingthelocalheating,soinevitablywillproduceweldingstressanddeformation.Weldingstressanddeformationmaynotonlyleadtohotcracking,coldcracking,brittlefractureprocessdefects,andundercertainconditionswillaffectthecarryingcapacityofthestructure,suchasstrength,stiffnessandcompressionstability.Therefore,inthedesignandconstructionprocesstakefullaccountofweldingstressesanddeformationofthischaracteristicisveryimportant.Modelthegeometricdimensionsof100mm×

100mm×

6mmarcinthemiddleofsteelplatealongthelinearmotion,thereforehalfofthemodelcalculationstake.

Figure4.Weldingmodeldiagram

Table2.Steelmaterialproperties

TemperatureT（℃）

20

250

500

750

1000

1500

1700

2500

coefficientofheatconductivity（W/m℃）

50

47

40

27

30

35

45

Density（Kg/m3）

7820

7700

7610

7550

7490